Raining Blessings From Holiness David's Heart

Holiness David Running Eagle Shooting Star

Search This Blog

Loading...
Everyone is Welcome into the Heart of Holiness David, for he wants to help you with your questions! Nothing is too simple or complicated! Semiconductor World Trainer! He loves computers and he loves you too! Email holinessdavid@alightfromwithin.org

Tuesday, September 18, 2012

To Blogger Feedback

Description: Relatives, Oh my, the whole page moves left and cannot access it. This is troublesome, because I have to reload the page over and over until it works. And both chrome and firefox does the same thing. So we know it's on your end. Make it more stable please. Good luck. by the way, each time I send feedback, the whole page moves back. it is never captured. Since I can't send you my own image, next time, I will send a url of the picture of my page on blogger posts. Thank you, Whitebuffalocalfwoman@gmail.com

http://mycomputerisprotected.blogspot.com/2012/09/to-blogger-feedback.html

Relatives, Here is a real picture of the whole thing moved left and even after several directions of entering the post, still stays left. I have to leave the post, wait awhile, then return. I guess waiting for a reset on your end. whitebuffalocalfwoman@gmail.com blogger of 100's of blogs

Welcome to the home of love, where your computer gets to know of hugs. Take the time to give it love, to ensure the spine stands, on the test of time (until you update protection files again). For only you can operate the golden rule, do unto your computer, who knows who to fool. But we do outwit the slyest fox, when we give love instead of gloves (put them up, combative forces). The greatest part of protection is clear, the smooth operation of moving in space is dear (world wide web). Protect my computer God above to bring the Angels down below. Bless and bless the common place, to be rest assured that all is grace.

Wednesday, May 2, 2012

Web Applications Engineering: Udacity CX253


 

Courses and Enrollment http://www.udacity.com/courses

Follow
Google Plus https://plus.google.com/116286004036789369492/posts
Facebook http://www.facebook.com/pages/Udacity/174179219354091?sk=wall
Twitter http://twitter.com/udacity

Welcome to CS 253 - Web Application Engineering!

Sean Bennett - 11:03:24 PM Apr 16, 2012

Welcome to Web Application Engineering! During this course, you'll learn how the web and web applications work, build your own web applications, and actually put them online to share with others using Google App Engine.
If you've never had any experience with web programming before, don't worry! All you need is some basic knowledge of Python, similar to what you would learn in CS 101http://www.udacity.com/overview/Course/cs101/CourseRev/apr2012. Steve Huffman, the creator of Reddit and Hipmunk, is going to be teaching you all about web applications, along with everything he wished he knew about them when he was first getting started. He's been working hard to put together a course that you'll all enjoy and learn a lot in!
The course is going to be structured in 7 units. Each unit will include lecture videos, embedded quizzes, and homework assignments. Each unit will be released once a week on Mondays. Homework assignments will be released on Tuesdays and will be due the following week on Mondays at 11:59 UTC. We also have a course forum and wiki pages with course notes and additional material to help you with each unit. At the end of the course, we'll have a final exam, and everyone who completes the course will be given a certificate and a grade to show their accomplishment!


  • Unit 1
  • Homework 1
  • Homework Help 1
  • Office Hours 1
  • Unit 2
  • Homework 2
  • Office Hours 2
  • Unit 3
  • Homework 3



Web Application Engineering


Description: Web applications have the power to provide useful services to millions of people worldwide. In this class, you will learn how to build your own blog application starting from the basics of how the web works and how to set up a web application and process user input, to how to use databases, manage user accounts, interact with other web services, and make your application scale to support large numbers of users.
WEEK 1:
How the Web Works
Introduction to HTTP and Web Applications

WEEK 2:
How to Have Users
Getting and processing user input

WEEK 3:
How to Manage State
Databases and persistent data

WEEK 4:
Whom to Trust
User authentication and access control

WEEK 5:
How to Connect
Web applications as services, using APIs

WEEK 6:
How to Serve Millions
Scaling, caching, optimizations

WEEK 7:
Changing the World
Building a successful web application, project







http://www.udacity.com/overview/Course/cs253/CourseRev/apr2012

Prerequisites


PREREQUISITES
This course assumes previous programming experience, comparable to what is covered by the Udacity CS101 course.

Questions


Is there a fee to take the course?
Nope, no fees. All of our classes are offered free of charge.
Can you enroll in more than one class? 
Yes! Keep in mind CS101 is intended for students with no previous programming background, CS212, 253 and 262 are courses oriented towards students with some programming experience (the equivalent of CS101), while CS373 and CS387 assumes students have prior programming experience.
When do classes start?
April 16, 2012.
When do I have to be online to watch the lectures?
The lectures are posted each week for you to view at your convenience.
How is the class formatted?
The class is broken into 6 week-long units and a seventh week that wraps up the course and has a final exam. Each unit contains multiple lecture segments with interactive quizzes built in. There will be one homework assignment which will include programming problems each week. There will be approximately 50 minutes of lecture videos.
Will there be closed captioning?
Yes, the videos will have captions in English. We're also working to support other languages in future.
What will I get for completing the classes?
Students who complete a course will also receive a certificate signed by the instructors.

STEVE HUFFMAN

Steve Huffman co-founded the social news site reddit.com in 2005 with his college roommate. reddit.com has since grown into one of the largest communities online. In 2010, he co-founded Hipmunk, a company to take the agony out of searching for plane and hotel tickets. Steve was named to Inc. Magazine's 30 under 30 list in 2011. He studied Computer Science at the University of Virginia.
SEAN BENNETT

Sean once grew a 3 foot long (almost 1 meter) beard while camping in the northern United States. He won't say how long it took to grow this monstrosity, but scientists hypothesize that it sprouted spontaneously in some primitive response to too much computer programming ability. When Sean isn't shaving, you can find him practicing forms of martial arts that are so difficult most humans can't even pronounce them. After honing his skills in the gym, he puts them to use in the interpreter where he systematically finds and kills every bug he encounters. Don't mess with Sean.






CS253 - Unit 1: The Basics
Contents

Course Outline
World Wide Web
Quiz: Course Outline
Quiz: File Types
Quiz: Components of the Web
Quiz: Best Browser
Intro to HTML
The Bold Tag
Quiz: Bold Tag
More Tags
Quiz: Italics
Quiz: Missing End Tag
Making Links
Quiz: Making Links
Adding Images
Whitespace
Quiz: Whitespace
Quiz: Paragraph Tag
Inline vs. Block
Span and Div
Quiz: Span and Div
Document Structure
Introducing URLs
Quiz: Correct URL
Query Parameters
Quiz: Query Parameters
Fragments
Port
Quiz: Port
HTTP
Quiz: GET
Quiz: Most Common Method
Making Requests
User Agent Header
Quiz: Valid Headers
http Response
Response Headers
Quiz: Telnet Request
Web Applications
Quiz: Dynamic Content

1. Course Outline
In this class you will learn how to build web applications! Throughout this course you will be building a blog that will have user registration and allow you to submit user entries. This blog will be online for anyone to see and play with!

In this unit you are going to cover the following basics of the web:

the web- what it is, what it looks like and how the pieces fit together
HTML- the main document type of the web
URLs-how you refer to documents on the web
HTTP- the protocol that the web runs on
Web Applications- what they are and how they fit into the big picture
2. World Wide Web
The world wide web is a collection of HTML documents. HTML stands for HyperText Markup Language and it is the basis for almost every webpage – it is what glues everything together.

The links between pages are called hyper links, or just links, give the internet its web-like characteristic.

The web was invented in the early 1990’s and has somewhere around 30 billion pages!

2.1. Quiz: Course Outline

What is the main type of document on the web?

a. HTML
b. Microsoft Word
c. PDF
d. Plain Text
2.2. Quiz: File Types

What type of files can be found on the web?

a. Plain text
b. HTML
c. Images
d. Videos
e. Music
2.3. Quiz: Components of the Web

2012-04-05-Image1.jpg

Using the letters that are associated with each piece of technology and match them up with their name and definition.

HTTP – the main protocol of the web
Servers – computers that host the files that makes up the web
Internet – the world’s largest computer network
Browser – a program that runs on your computer to display files found on the web
2.4. Quiz: Best Browser

Which of these browsers is the best?

a. Internet Explorer
b. Firefox
c. Chrome
d. Safari
e. Opera
3. Intro to HTML
HTML, or HyperText Markup Language is the heart of the web. It is made up of:

text content, which is what you see
markup, which is what the content looks like
references to other documents, for example, images and videos
links to other pages
Explore HTML here, www.udacity.com/html_playground, and play around in this fake little test browser. 

A few things to note:

Plain text is plain text in HTML, for the most part. 2012-04-05-Image2.jpg

If you want to make the text look different you have to use markup.

HTML markup is made up of things called “tags”. Tags look something like this:

Contents
The contents can include other tags, or it may just be text. The tag is called the “opening tag” and the tag is called the “closing tag”. Notice that the only difference between the opening and closing tags is that the closing tag has a slash, /, in front of the tag name.

The whole construct: Contents can also be referred to as “an element”.

Let’s learn about our first tag.

3.1. The Bold Tag

The first tag we are going to learn about is the bold tag. It looks like this:

Contents
It has an opening tag and a closing tag with the slash, and anything that appears between the opening and closing tags appears bold.

b for bold.

OK, quiz time:

3.2. Quiz: Bold Tag

In the box below, make the words reasonably straightforward bold:

3.3. More Tags

Now we want to teach you another tag. This is the tag. em stands for emphasis, and it makes things italic. The complete element will look like this:

contents
There is the opening tag, the contents that we want to appear italic, and then the closing tag with the slash. The structure is just like the bold tag we saw earlier.

3.4. Quiz: Italics

What we want you to do is to make the phrase 'HTML is reasonably straightforward' italic.

3.5. Quiz: Missing End Tag

What would happen if we were to forget to close the tag in our example?

Nothing is italicised
The browser crashes
Everything after is italicised
Your guess is as good as mine
3.6. Making Links

Now we will teach you all a new concept. This is HTML attributes. Attributes appear something like this:

Contents
We still have our opening tag name and the closing tag as before, but now we have this new thing called an attribute.

Attributes have a name (in the example above it is simple called ATTR) and a value (inside the quotes). Tags may have multiple attributes.

An example of a tag that uses attributes is the anchor tag , and a full example would look something like this:

Here, within the opening tag we have the opening a, an attribute called href, the value of the attribute which is a URL in this case. If this were rendered in a browser we would just see the word “derp”, but it would be a link to reddit.com.

3.7. Quiz: Making Links

Make the words my favorite in the phrase below a link to udacity.com.

4. Adding Images
The next tag we are going to introduce is the image tag. The image tag looks like this, , and you won’t be surprised to learn it is for including images. The image tag has the following structure:

”text”
The image tag has an attribute names src (for “source”) which equals the URL which is the location of the image file to be downloaded. This is followed by a second attribute called alt. This stands for “alternate” and is the text that is to be displayed when the image doesn’t load.

The alt attribute is “required” in the sense that html parsers will complain at you if it is not there. Nothing will actually break if it is missing but it is really good practice to include it. If the image is moved or the requested URL is missing for some reason, this is the text that is displayed.

The text associated with the alt attribute is also the text picked up by the reading software used by blind people to access the web. It doesn’t take much effort to add an alt attribute to your images, but it can make somebody’s day just that little bit easier...

There is one more thing to be aware of about the image tag. Every tag we have looked at so far had a closing tag. Image tags don’t. There is not contents to an image tag, and so the closing tag is not required.

Tags, like , that don’t require a closing tag are called void tags.

Images will appear inline with text.

4.1. Whitespace

Let’s talk about whitespace for a moment.

You may have noticed that if you entered text into the editor on multiple lines, the browser window rendered it onto a single line. This is because in HTML, all whitespace, new lines, tabs, spaces are all converted into a single space.

To force the browser to display text on multiple lines we can use another tag called the break tag, and it looks like this:



is also a void tag.

The effect of
is to cause the browser to move to a new line before displaying the next piece of content. Multiple
tags will cause the browser to move down multiple lines before it displays further content.

Another way of creating line-breaks is to use the paragraph tag . The paragraph tag is NOT a void tag. Paragraph tags have content and appear like this:

Content
The content between the opening and closing tags will be rendered by the browser as a single paragraph.

4.2. Quiz: Whitespace

Enter the HTML to draw the following text:

Hello everyone!
We’re using two lines now!
on two lines, using the
tag.

4.3. Quiz: Paragraph Tag

OK, now let’s do the same thing, only this time using the paragraph tag. Enter the HTML to draw the following text:

Hello everyone!
We’re using two lines now!
on two lines, using the tag.

5. Inline vs. Block
One last thing I’d like to talk about regarding
and , is the question of why we have two different ways of creating line-breaks? Why do we have the
tag and also the
tag?

The answer is that the
tag is what we call an INLINE tag and the tag is what we call a BLOCK tag.

What the
tag was actually doing is telling the browser to end the line.

The tag acts differently. What the
tag does is to create an invisible “box”. So the HTML code:

text1
text2
Creates an invisible “box” around text1. This box can have height and width. Text2 will be outside this “box”.

The differences between inline and block tags will come up a fair amount in this course, and it is important to know that there is a distinction between them and they have different behaviours. So far, all of the elements that we have learned (other then ) are inline elements.

5.1. Span and Div

Two more elements that I’d like to teach you are called Span and Div. Both span and div are normal elements, that is they can both have content:

Content
Content
The only difference between these elements is that span is an inline element whereas div is a block element. The only function of these elements is to contain their content and there is a way of attaching styles to them to change the way in which their contents display. This is done by attaching attributes to the tags so they look something like this:

Content
Content
The class attribute refers to a CSS class. CSS classes are not something that we are going to spend a lot of time on in this course, as we will provide the CSS where needed. CSS is a separate language for adding styles to your documents.

We will be using and
elements a lot to control the layout of text, and the important thing to remember is that is an inline tag, and
is a block tag.

5.2. Quiz: Span and Div

Select all of the elements that are inline. Some of these are elements that you haven’t seen before, so I would like you to trty them out in your browser and see if you can figure it out for yourself:

a
p
div
img
span
strong
br
form
6. Document Structure
That is enough HTML elements for now. I want to quickly talk about the structure of an actual HTML document before we move on.

What we have seen up until now has just been some very simple markup. We’ve been seeing this like this:

Content
with just a little text and a few simple tags, but an actual HTML document has quite a bit more to it. Here we see a whole lot more HTML:




Title!


Content


This is what a complete HTML document looks like. Let’s look at this piece by piece. The first line:


specifies the doctype. i.e. what kind of HTML this is. The “HTML” string within this tag used to be a LOT more complicated, but now that we are using HTML5 we have a nice clean, simple doctype.

The and tags surround the rest of the document providing a kind of “container” for the document.

The and tags enclose the document header. This part of the document contains metadata about the document and other document information. JavaScript and CSS would also be included in the document header.

The element contains the title of the page. This is what will appear at the top of your browser, and in the browser tab, when you open the document.</div><div><br></div><div>Next, we have the <body> and </body> tags that enclose the actual contents of the document. So far, we have been looking at elements that would be included in the body of the document. In fact, most of this course will be concerned with generating the content that fits between the body tags. The rest of the HTML that makes up the document is important, and you will see it, and we’ll be sending it over the wire, but it doesn’t change very often and it is pretty simple. All of the interesting stuff happens between the body tags.</div><div><br></div><div>7. Introducing URLs</div><div>Let’s talk about URLs.</div><div><br></div><div>URL stands for Uniform Resource Locator. An example of a URL would look like this:</div><div><br></div><div>http://www.udacity.com/</div><div><br></div><div>This has three parts:</div><div><br></div><div>The protocol: http</div><div>The host: www.udacity.com</div><div>The path /</div><div>The protocol can be a number of things. For our purposes this will be http almost all of the time (it can also be https, ftp and some other protocols). It is separated from the host by a colon and two slashes - ://</div><div><br></div><div>The host is the host name or domain name of the server that has the document that we want to access.</div><div><br></div><div>The path is the document we want to access. The shortest possible path is just the single slash.</div><div><br></div><div>7.1. Quiz: Correct URL</div><div><br></div><div>Given the protocol ftp, the host www.udacity.com, and the path /about, what is the URL?</div><div><br></div><div>7.2. Query Parameters</div><div><br></div><div>OK, let’s add something new to our URLs, called Query Parameters (also known as GET Parameters). Here is an example of a query parameter:</div><div><br></div><div>http://www.example.com/foo'''?p=1</div><div>This has a simple URL of the type we have already seen, with the path /foo, to which we have added ?p=1. This adds an extra parameter with the name p and the value 1. URLs can have multiple query parameters:</div><div><br></div><div>http://www.example.com/foo'''?p=1&q=neat</div><div>The URL now has two query parameters. The fist query parameter is separated from the URL by a question mark, and the query parameters are separated from each other by ampersands.</div><div><br></div><div>So what are query parameters actually for? Query parameters pass information to the server when you request the particular path. This information can be used for all sorts of things and we will discuss some of these later in the class.</div><div><br></div><div>7.3. Quiz: Query Parameters</div><div><br></div><div>In the following URL, what is the value of the z parameter?</div><div><br></div><div>http://example.com/foo?p=foo&z=p</div><div><br></div><div>8. Fragments</div><div>Let’s add one more piece to our URLs. This is a fragment. A fragment is separated from the rest of the URL by a hash sign:</div><div><br></div><div>http://www.example.com'''#fragment</div><div>A fragment is usually used to reference a part of the page that you are looking at, although there are some fancier uses if you are going to do some complex JavaScript things.</div><div><br></div><div>The fragment is not sent to the server when you make a request. The fragment just exists in the browser.</div><div><br></div><div>URLs can have both fragments and query parameters, in which case the fragment follows the query parameter(s):</div><div><br></div><div>http://www.example.com/foo'''?'''p=1'''#fragment</div><div>8.1. Port</div><div><br></div><div>The last part of the URL that we are going to look at for now is the port:</div><div><br></div><div>http://localhost''':8000'''/</div><div>When you make a web-request to the server, in order to make an internet connection you need two things:</div><div><br></div><div>the address of the machine (localhost in the example above)</div><div>a port (8000 in the above example)</div><div>By default, the port equals 80. If you want to use a port other than 80, you can include it in the URL between the host and the path, separated from the host by a colon.</div><div><br></div><div>The URL shown in the example above will become very familiar to you. This will be your local development URL for a lot of this course, and also for much of your career as a web developer. You will be constantly accessing your local machine, and you will probably be doing on something other than port 80.</div><div><br></div><div>There are even more parts to a URL, but these aren’t relevant to us right now, so we will deal with them as we go.</div><div><br></div><div>8.2. Quiz: Port</div><div><br></div><div>Identify the different parts of this URL:</div><div><br></div><div>http://example.com:80/toys?p=foo#blah</div><div><br></div><div>host</div><div>protocol</div><div>fragment</div><div>query</div><div>port</div><div>8.3. HTTP</div><div><br></div><div>HTTP is the main protocol of the web. It is what your browser uses to communicate with web servers. HTTP stands for HyperText Transfer Protocol.</div><div><br></div><div>A request from your browser for the URL:</div><div><br></div><div>http://www.example.com/foo</div><div><br></div><div>begins with a request line that looks something like this:</div><div><br></div><div>GET /foo HTTP/1.1</div><div>HTTP is a very simple text protocol, so this text is sent over the Internet exactly as shown. The request line has three main parts:</div><div><br></div><div>Method – the type of request we are making to the server (GET)</div><div>Path – from the URL (/foo)</div><div>Version – HTTP/version (HTTP/1.1)</div><div>The two main methods we will be considering are GET and POST.</div><div><br></div><div>The host name doesn’t appear in the request line. That is because we are already connected to the host. The host is used to make the connection, the path is used to make the request.</div><div><br></div><div>8.4. Quiz: GET</div><div><br></div><div>Given the following URL:</div><div><br></div><div>http://example.com/foo/logo.png?p=1#tricky</div><div><br></div><div>what is the request line to GET this URL using HTTP/1.1?</div><div><br></div><div>8.5. Quiz: Most Common Method</div><div><br></div><div>Which method is most often used for requesting a document from the server?</div><div><br></div><div>9. Making Requests</div><div>We had our request line that looked something like this</div><div><br></div><div>GET /foo HTTP/1.1</div><div><br></div><div>This is followed by a number of headers. Headers have this format:</div><div><br></div><div>Name: value</div><div><br></div><div>When you make a request, the request line and all of the associated headers are sent at once. Some of the more popular headers are:</div><div><br></div><div>Host: www.example.com</div><div><br></div><div>User-Agent: chrome</div><div><br></div><div>The Host header is required in HTTP/1.1 but isn’t strictly required in HTTP/1.0. We have already used the host from the URL to connect to the server, so why would we need to include it in a header? Well, web-servers may have multiple names, and one machine may host many individual websites.</div><div><br></div><div>The User-Agent header describes who is making the request. It will generally be your web-browser, which helps the server to know what type of machine is making the request.</div><div><br></div><div>10. User Agent Header</div><div>Steve talks about his experience when getting Reddit up-and-running. User-Agents are one of the most important headers in an HTTP request.</div><div><br></div><div>User-Agents were really important to Reddit. Reddit was a site that was online and really popular. Users would often write scripts and so on to pull content down from Reddit, and mostly they were doing good things. Sometimes, however users would do bad things, for example spammers looking for weaknesses or trying to gain access to the system.</div><div><br></div><div>User-Agents were important. Sometimes users would hit the site a little too hard, or too fast, hurting the website for real users. If they had a legitimate User-Agent, the team at Reddit could look at them and take steps to moderate the behaviour . The Google-bot (Google’s web crawler) was a really good example of this. However, when people turned up with fake user agents pretending to be a browser and hurting the site, then the team at Reddit would simply block them.</div><div><br></div><div>Using good User-Agents when you write software that interacts with other people’s websites it a really nice, courteous thing to do, and is one of the things that makes the web work well for everybody. So it is important to have a nice, accurate User-Agent and to be honest whenever you can.</div><div><br></div><div>10.1. Quiz: Valid Headers</div><div><br></div><div>Which of these are valid headers?</div><div><br></div><div>User Agent: chrome</div><div>Host: www.hipmunk.com</div><div>host www.example.com</div><div>User-Agent: ignore me I’m a spammer</div><div>i-made-this-up: whatever</div><div>11. http Response</div><div>OK, now that we have seen the HTTP requests, let’s take a look at HTTP responses.</div><div><br></div><div>The basic HTTP response looks similar to the HTTP request. For example, if we send the request:</div><div><br></div><div>GET /foo HTTP/1.1</div><div><br></div><div>The response may look something like:</div><div><br></div><div>HTTP/1.1 200 OK</div><div><br></div><div>This is called the status line and is analogous to the request line we saw earlier. The version in the status line should match the version in the request (HTTP/1.1). The version is followed by two additional pieces of information:</div><div><br></div><div>The status code</div><div><br></div><div>The reason phrase (an English-language description of the status code)</div><div><br></div><div>There are some really common status codes:</div><div><br></div><div>200</div><div>OK</div><div>302</div><div>Found</div><div>404</div><div>Not found</div><div>500</div><div>Server error</div><div>If the code starts with a 2 (e.g. 200), this means everything worked alright. If it starts with 3, it means there's a bit more work to be done. If it starts with 4 (e.g. 404), it indicates that there was an error on the browser side, and if it starts with 5, it means that there was a error on the server side.</div><div><br></div><div>12. Response Headers</div><div>Just like the request line we saw earlier, the status line is followed by a number of headers. Here are a few examples that are commonly included with HTTP responses:</div><div><br></div><div>HTTP/1.1 200 OK</div><div>Date: Tue Mar 2012 04:33:33 GMT</div><div>Sever: Apache / 2.2.3</div><div>Content-Type: text/html</div><div>Content-Length: 1539</div><div>The Date header should be there every time. It is the date that the request was made.</div><div><br></div><div>The Server header is similar to the User-Agent header in request line. Typically it contains the name and version number of the server. However, this could be useful information to would-be hackers, so it may be missing or contain made-up information.</div><div><br></div><div>Content-Type is simply the type of document that is being returned.</div><div><br></div><div>Content-Length is the length of the document. It is often included, but isn’t strictly required since the browser will know when the data is complete as the connection will close.</div><div><br></div><div>There follows a demonstration of using Telnet to send a request line and headers, and view the response.</div><div><br></div><div>12.1. Quiz: Telnet Request</div><div><br></div><div>Use telnet to make a request to:</div><div><br></div><div>http://www.example.com</div><div>The request is to be a GET request for the path /</div><div><br></div><div>What is the status code?</div><div><br></div><div>What is the value of the location header?</div><div><br></div><div>13. Web Applications</div><div>Most of this course is going to focus on how to run programs on servers. The purpose of a web-server is to respond to HTTP requests. There are two main classifications for server responses:</div><div><br></div><div>Static</div><div>Dynamic</div><div>Content is considered static if it is a pre-written file that the server simply returns. Examples of static content include image files.</div><div><br></div><div>More interesting are dynamic requests, which are requests where the responses are built on-the-fly by a program running on the server. Just about all the content online these days is dynamic. The programs that build these dynamic responses are called web applications.</div><div><br></div><div>A web application is just a program that generates content. It is run from the server, speaks http, and generates dynamic content requested by the browser and is what we are going to learn to build on this course.</div><div><br></div><div>13.1. Quiz: Dynamic Content</div><div><br></div><div>Which of these requests is for dynamic content?</div><div><br></div><div>Your Facebook page</div><div>The Udacity.com logo</div><div>A blog’s front page</div><div>Google search results</div><p></p><p><a href="http://wiki.udacity.com/CS253%20Unit%201">http://wiki.udacity.com/CS253%20Unit%201</a> </p><p><b><i><br></i></b></p><p></p><h1 style="margin: 0px; padding: 0.4em 0px 0px; font-size: 2.2em; font-weight: normal; -webkit-margin-before: 0px; -webkit-margin-after: 0px; color: rgb(87, 87, 87); font-family: arial, sans-serif; background-color: rgb(252, 252, 252); "><span class="text-upper" style="text-transform: uppercase; ">CS373</span>: Programming A Robotic Car</h1><p style="margin-top: 7px; margin-bottom: 7px; padding: 0px; -webkit-margin-before: 0px; -webkit-margin-after: 0px; font-size: 1.2em; font-family: arial, sans-serif; background-color: rgb(252, 252, 252); ">Learn how to program all the major systems of a robotic car from the leader of Google and Stanford's autonomous driving teams.</p><p></p><p><a href="http://www.udacity.com/overview/Course/cs373/CourseRev/apr2012">http://www.udacity.com/overview/Course/cs373/CourseRev/apr2012</a></p><p><b><i><br></i></b></p><p><b><i><br></i></b></p><p><b><i><br></i></b></p><p><b><i>Welcome to the home of love, where your computer gets to know of hugs. Take the time to give it love, to ensure the spine stands, on the test of time (until you update protection files again). For only you can operate the golden rule, do unto your computer, who knows who to fool. But we do outwit the slyest fox, when we give love instead of gloves (put them up, combative forces). The greatest part of protection is clear, the smooth operation of moving in space is dear (world wide web). Protect my computer God above to bring the Angels down below. Bless and bless the common place, to be rest assured that all is grace.</i></b></p>

Thursday, January 19, 2012

Download Free Avg Anti-Virus

Download NowTested spyware free

http://download.cnet.com/3001-2239_4-10320142.html?spi=0af4a3fe5dd20f1c00fb958040a4e26a&part=dl-avg_free_us


Welcome to the home of love, where your computer gets to know of hugs. Take the time to give it love, to ensure the spine stands, on the test of time (until you update protection files again). For only you can operate the golden rule, do unto your computer, who knows who to fool. But we do outwit the slyest fox, when we give love instead of gloves (put them up, combative forces). The greatest part of protection is clear, the smooth operation of moving in space is dear (world wide web). Protect my computer God above to bring the Angels down below. Bless and bless the common place, to be rest assured that all is grace.

Thursday, December 8, 2011

Old slow computers: breathing life into them

Hi Relatives,

A while ago, I talked about computers being slow and we went through instructing you in using a defragmentation program as well as anti-virus and anti-malware software.

If you have an older computer, then your operating system could be slowing you down. One young person, Golden Kobi, has an older computer that his father handed down to him. It has Windows 7 on it. The problem is that Windows 7 requirements are pretty severe for an older computer. Windows 7 requires at least 1GHz CPU, 1GB of RAM memory, and at least 16GB of hard drive space.
Golden Kobi's computer sometimes runs and if it runs, it is very slow.

Solution: Linux distribution (or version) of Lubunt 11.10. This is similar to Ubuntu 11.10 but is intended for computers with limited resources, which means old and slow computers.

I have successfully installed this operating system on a 10 year old Compaq Presario laptop and it works great! You might not be able to run demanding games or have 30 tabs open on your web browser, but you can do web surfing, write documents, and create graphic images quickly and easily.
The software is free and it works great. Most programs that you have been using, are now available for the Linux format. Microsoft Office suite has been very successfully replaced with Oracle's OpenOffice and an independent spin-off from OpenOffice, LibreOffice.
These office suites are very popular world-wide and are almost exactly like Microsoft Office. Microsoft Office is the premier office suite, but I've been using OpenOffice and LibreOffice for several years and I love them. There is only one thing I can think of that these two suites don't have is a multiple-level clipboard (meaning that you can have multiple cut-n-paste items available), but I have found a way around that with Clip-O-Matic for Windows (I'm working to find one for Linux). It does the same thing only better.
The best thing is that these office suites are very good, professional and free.


A Great Idea: ship your laptop to me and I will get it working, free. Just the cost of shipping both ways (remove the battery) and of course, donations are always appreciated.

There are other operating systems besides the ones I stated above.  If you have special requirements, let me know and we see if there is Linux program (distribution) that is better suited for you.



Welcome to the home of love, where your computer gets to know of hugs. Take the time to give it love, to ensure the spine stands, on the test of time (until you update protection files again). For only you can operate the golden rule, do unto your computer, who knows who to fool. But we do outwit the slyest fox, when we give love instead of gloves (put them up, combative forces). The greatest part of protection is clear, the smooth operation of moving in space is dear (world wide web). Protect my computer God above to bring the Angels down below. Bless and bless the common place, to be rest assured that all is grace.

Monday, December 5, 2011

Help for Older and Newer Computers

Dear Relatives,

Today, Monday, I briefly talked to Golden Koby about a computer that given to them. They took it to their nearby computer shop to see if they could gain access to the password but to no avail.
I reviewed some information from the Microsoft support website about system passwords and the results was that if you don't know and/or cannot get the password, you need to reinstall the operating system software.

Regarding older computers, this is what I would like to suggest to anyone who reads this blog posting:
Do not spend time or money taking older computers to the local shop to see if they can help.
Let me help you. If you don't want to, that's OK; I just wanted to offer because I love doing this kind of stuff.

I have two programs that I have become used used to that I can recommend for older (and newer) computers for free! The operating systems I am referring to are: Ubuntu 11.10 and Lubuntu 11.10. Some companies are shipping brand-new computers with Ubuntu 11.10.
Depending on the computer hardware, I can suggest which one to install on your computer. I can send you a CD-ROM or you can download these programs off the internet.

Please let me know what kind of computer you have that you cannot get the password for (or any computer for that matter).
1. the manufacturer name: might be on the laptop lid or if you have desktop computer, somewhere on the case, and might also be on the bottom or back of the computer.
2. open the laptop lid and look for any names or numbers.
3. look at the laptop bottom for any names or numbers including S/N numbers (serial numbers)
4. turn on the computer and watch for any names or numbers that whisk before your eyes. You might have to do this several times to get the information.
5. One more place that might have information is in BIOS. To get into this, turn on the computer and note at the bottom left of the screen, it will show F2 or F10 or Esc to get into BIOS. This will also go by pretty quick, so you might have to do it a couple of times to get it. Write down anything like manufacturer and model numbers, hard drive information, etc.
6. email me for more help. Do not be shy.

Given the information you get off of the computer or computers, I can get you started on using that computer that thought was ready for the recycle bin. Based on the information you send me, I might also recommend buying more memory or a better hard drive.
Some old slow computers have limited RAM memory that can be installed and that could be a limiting factor and you might have to face the fact that it is time to recycle. Again, let me help you decide.
Note: do not put old computers, printers, televisions or monitors into the trash. Always use recycle.
Love and blessings,
Holiness David







Welcome to the home of love, where your computer gets to know of hugs. Take the time to give it love, to ensure the spine stands, on the test of time (until you update protection files again). For only you can operate the golden rule, do unto your computer, who knows who to fool. But we do outwit the slyest fox, when we give love instead of gloves (put them up, combative forces). The greatest part of protection is clear, the smooth operation of moving in space is dear (world wide web). Protect my computer God above to bring the Angels down below. Bless and bless the common place, to be rest assured that all is grace.

Saturday, October 29, 2011

Get computers to our less fortunate members or whoever else in the world comes along

Hi Relatives,

There are some people in the hoops who do not have computers.  They use their telephones to text messages for communicating with the hoops or they go to the library or into town to a business that has internet access (many coffee shops have WiFi). 

Relatives, would it be possible for you to dig out your old computer(s); together, you and I will take a look at it (or anyone else who wants to get in on the action) to see if it would be usable for someone?

Objective:  get computers to our less fortunate members or whoever else in the world comes along?


Together, we could:
  1. Over-the-phone and using email, we will determine if it is a recoverable computer.  If you need help, I will guide you along step by step.
  2. If you give it away, then any money spent becomes tax deductible: parts, shipping, mileage for running around, etc.
  3. Software cost is no longer an issue.  Just about everything that is needed is available without cost (software programmers appreciate donations) and that includes operating system, office suites, drawing, painting, and engineering autocad and the list goes on and on: free.
You all know how much a recipient would benefit.  To be able to use the computer on the internet for email, to surf the internet to learn almost anything.  Create documents (write resumes), create web pages, create drawings and/or paintings, etc.
Everyone who touches the computer at each step in this revitalization process will learn.  It becomes an educational project as well as benefiting the recipient.
What do you think?

COST should be little or nothing.  Maybe less than $20 per computer.  First we would need to determine what the computer needs to be functional or more functional.
  From what I've seen, most older computers simply need more memory, hence the $20 number.

NOTE: Anyone receiving this email who needs a computer, please let us know.
 
Welcome to the home of love, where your computer gets to know of hugs. Take the time to give it love, to ensure the spine stands, on the test of time (until you update protection files again). For only you can operate the golden rule, do unto your computer, who knows who to fool. But we do outwit the slyest fox, when we give love instead of gloves (put them up, combative forces). The greatest part of protection is clear, the smooth operation of moving in space is dear (world wide web). Protect my computer God above to bring the Angels down below. Bless and bless the common place, to be rest assured that all is grace.

Friday, October 7, 2011

Family Clean Your Computer Day

Hi Relatives,

It is time for "Family Clean Your Computer Day"

Your computer needs to be cleaned from time to time. In this article I will instruct you in the cleaning of the cooling fans (more than 1), its grills or openings, and the keyboard.  Let's add monitor/display cleaning.

It has come to my attention that some people are having problems with their computer that could be related to overheating which is caused by dust and dirt!

If your computer is clogged up with dust and dirt, it can get HOT and then strange things start to happen.
  1. The computer can just turn off if it overheats. Some power supplies are temperature protected; as the power supply heats up, it will turn off before damage occurs. Note: a power supply supplies provides power to the different components inside of the computer.
  2. The computer can behave strangely; for example:
    1. Your computer might run slowly.
    2. CPUs (short for microprocessor) don't like being hot and will start to run poorly.
    3. The computer can forget things (memory gets stupid when it is very hot).
    4. Programs can do strange things like not responding to your inputs or when you try to save a file it hangs and does nothing or is slow to do it.
  3. These days a lot of computers have fans for the CPU. If the fan stops working or gets clogged up with dust and dirt, it will get very hot and the CPU could become damaged.
  4. The newest computers are better equipped to handle temperatures in such a way that damage does not occur. This is done by better mechanical design and by system software (CPU can go into a low power mode, for example).
  5. But, even if you do have a new fancy computer, it still needs to cleaned periodically. 

Make it a family event!!
Here is a great idea: make this a family event. If you have several computers around the house, this would be a great time to get all of them cleaned up at the same time.

Cleaning Your Computer

Vacuuming the computer

Note: Turn off the computer and unplug from the AC wall outlet.
Note: Take pictures of the inside of the computer before doing anything. This is important; vacuuming could bump and/or dislodge cables from their connectors.

Desktop Computer:

  1. From the back of the computer case, vacuum the fan and fan grill.
  2. To get the computer case open, look at the left-side of the case. If it is hinged to swing open, you might see a large button; press the button and swing the left-side open.
  3. The left-side of the case might be secured with two or three screws on the rear left side. Remove the screws and the left cover should slide toward the rear about 10 or 15 millimeters (about a ½ inch). After sliding toward the rear, pull it away from the case and set aside.
  4. Note: If you are not comfortable with getting inside of the computer, then just vacuum the fan and fan grill. Do your best to get all dust you can see.
  5. Very carefully, vacuum the keyboard. I have seen the keys (buttons) come off and you don't want any keys to get sucked into the vacuum. The alternative is to use a can of compressed air. This can still blow a key or keys off, but at least you will more easily be able to find it and put if back on.

Laptop Computer:

Use a vacuum cleaner to remove any visible dust. Sometimes you can see dust coming out of openings (any nooks and crannies). Do your best to get all dust you can see.
Remove the battery from the computer. Look to see if there is any dust coming out of nooks and crannies: blow it out.

Warning, Laptop keyboards:
Try not to get too aggressive or rough. The keys are fragile, can easily come off, and will not take any abuse. If a key comes off, carefully, gently snap it back in place. Look it over carefully and you'll see how it goes back on. Call me if you need help.

If you DO have overheating problems, and if vacuuming and blowing does not solve it, then I suggest a free program called Speedfan (there are others, but I've tried this one). The program monitors the fans, temperatures, and voltages inside the computer.

Cleaning the monitor, display, or television
(henceforth we call it a monitor)

First, unplug the monitor from the AC outlet at the wall.

Use a clean (must be clean) clothe with a mild soap or no soap (I use a brand-new out-of-the-package sponge).  Make sure that the clothe is damp but not wet (if a single drop of water gets into the display, permanent damage could occur).  Wipe down twice with clean damp clothe (same clothe, just rinsed each time).

 If you have any questions, please don't hesitate asking. Email holinessdavid@alightfromwithin.org for help. I can call anyone around the world (almost everyone), just need your number to verify. And I speak English in order to help you, otherwise, please email and I can get translation for you for assistance.

Thank you, Holiness David (Running Eagle Shooting Star),
lavender child, alightfromwithin.org, Rainbow Warriors of Prophecy.


Rainbow Warriors of Prophecy
 


Welcome to the home of love, where your computer gets to know of hugs. Take the time to give it love, to ensure the spine stands, on the test of time (until you update protection files again). For only you can operate the golden rule, do unto your computer, who knows who to fool. But we do outwit the slyest fox, when we give love instead of gloves (put them up, combative forces). The greatest part of protection is clear, the smooth operation of moving in space is dear (world wide web). Protect my computer God above to bring the Angels down below. Bless and bless the common place, to be rest assured that all is grace.