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Saturday, 27 June 2015

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HTML

HTML

HTMLDeveloped by Tim Berners-Lee in 1990HTML is short for HyperText Markup Language. HTML is used to create electronic documents (called pages) that are displayed on the World Wide Web. Each page contains a series of connections to other pages called hyperlinks. Every web page you see on the Internet is written using one version of HTML code or another.
HTML code ensures the proper formatting of text and images so that your Internet browser may display them as they are intended to look. Without HTML, a browser would not know how to display text as elements or load images or other elements. HTML also provides a basic structure of the page, upon which Cascading Style Sheets are overlaid to change its appearance. One could think of HTML as the bones (structure) of a web page, and CSS as its skin (appearance).

What does an HTML tag look like?

HTML tag
As seen above in the above example of an HTML tag there are not many components. Almost all HTML tags have an opening tag that contains the name with any attributesand a close tag that contains a forward slash and the name of the tag that is being closed. For tags that do not have a closing tag like the <img> tag, it is best practice to end the tag with a forward slash.
Each tag is contained within a less than and greater than angle brackets and everything between the opening and closing tag is displayed or affected by the tag. In the above example the <a> tag is creating a link called "Computer Hope" that is pointing to the hope.html file.

What does HTML look like?

The following is an example of a basic web page written in HTML as well as a description of each section and its function.
<!DOCType HTML PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN" "http://www.w3.org/TR/html4/loose.dtd">
<html lang="en"><head>
<title>Example page</title>
<meta http-equiv="Content-Type" content="text/html; charset=windows-1252">
</head>
<body>
<h1>This is a heading</h1>
<p>This is an example of a basic HTML page.</p>
</body></html>
The box above contains the key ingredients to a basic web page. The first line (DOCType) describes what version of HTML the page was written in so that an Internet browser can interpret the text that follows. Next, the HTML opening tag lets the browser know that it is reading HTML code. The HTML tag is followed by the head section which contains information about the page such as its title, meta tags, and where to locate the CSS file. The body section is all content that is viewable on the browser. For example, all the text you see here is contained within the body tags. Finally, closing tags wrap eachelement for proper syntax.

What is HTML5?

HTML5 is the update made to HTML from HTML4 (XHTML follows a different version numbering scheme). It uses the same basic rules as HTML4, but adds some new tags and attributes which allow for better semantics and for dynamic elements that are activated using JavaScript. New elements include section, <article><aside><audio>,<bdi><canvas><datalist><details><embed><figure><figcaption><footer>,<header><keygen><mark><meter><nav><output><progress><rp><rt>,<ruby><time><track><video>, and <wbr>. There are also new input types forforms, which include tel, search, url, email, datetime, date, month, week, time, datetime-local, number, range, and color.
With the increasing movement to keep structure and style separate, a number of styling elements have been removed along with those that had accessibility issues or saw very little use. These following elements should no longer be used in HTML code: <acronym>,<applet><basefont><big><center><dir><font><frame><frameset>,<noframes><strike>, and <tt>. HTML5 also simplifies the doctype declaration to the tag in the following box.
<!DOCType html>

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Computer processor (CPU) buying tips

Computer processor (CPU) buying tips

Purchasing a processor is an important consideration when building or buying a computer. Below we have listed several considerations and additional information about what to ask and look for when purchasing a processor directly or already installed into a computer.

Type

The processor can be an important consideration for users who are building a computer. Today, there are three main processor manufacturers: AMD, Cyrix, and Intel. Each of these companies have good and bad reviews, and really each of them are very close in compatibility and reliability. When considering any of these processors verify the motherboard is compatible. For example, if an Intel motherboard is purchased or currently installed into the computer, purchase an Intel Processor, an AMD processor only works on a motherboard designed for AMD.

Considerations

Heat Sink
It is highly recommended that all processors have a heat sink. The heat sink helps to allow for the processor to remain cool and therefore run more efficiently. A computer processor with a missing, bad or failing heat sink can cause the computer to lock up, cause errors or encounter other issues.
When looking at a processor, also consider the heat sink that will be attached to that processor and ensure that the processor being purchased is compatible with that heat sink.
Additional information and help on computer heat sinks can be found on our heat sink page.
Interface
Today, there is a wide availability of interfaces the CPU may connect to. Below is a listing of each of the interfaces and a brief description on each of them.
Slot
Slot A
The slot was first used and introduced by Intel when they released the Pentium II processors. This slot was designed to allow users to install the processor into the computer. However, because of the additional cost considerations, Intel has now gone back to the Socket what is now known as the FC-PGA socket. Computers that have the Slot are the Intel Pentium II and early versions of the Intel Pentium III.
The AMD processors use the Slot A interface
Socket
FC-PGA
Flip Chip
Coppermine
The socket is the most commonly used and found interface for processors today. The socket has been used in all Intel processors preceding the Intel Pentium II and is now being used for the Intel Pentium III and above processors with the name FC-PGA, which is short for Field-Programmable Gate Array. The FC-PGA is a socket and not a slot processor and is also known as the Intel Coppermine or the Flip Chip.
Slocket
Slocket, which is a slot card, can be used to connect a socket or FPGA processor. This is not an actual interface but can be an option for users who have a slot adapter with a computer that supports speeds of a socket or FPGA processor.
When looking at the interface of the CPU, it must match that of what is on the motherboard unless it is using Slocket. Additional buying tips on computer motherboards can be found on our motherboard buying tips page.
Names
The names of the processors can be very confusing and are used as a method of helping to sell a computer or computer processor. Below is a listing of some of the more commonly used names and a brief description on each of them.
Intel family names:
Pentium - The 80586, or P5, the Pentium is the generation above the 486 processor line.
Pentium Pro - Chip designed to help speed up Windows 32-bit software
Pentium with MMX - Processor with additional 57 new instructions and enhanced speed to graphics and multimedia software. MMX is now included in all Intel processors that have been released after this processor.
Pentium II and III - The first of the Intel processors to include the Slot adapters. These processors were the next generations of the Intel Pentium processor.
Intel Coppermine - The Socket (FC-PGA) version of the Intel Pentium III and IV.
Intel Flip Chip - Another name for the Intel Coppermine.
Intel Celeron - The low end Intel processors designed to help lower the prices of the computers by reducing or at first eliminating the level 2 cache.
Pentium IV - The next generation of Intel processors, these processors were over 1GHz and were the FPGA processors.
AMD family names:
AMD K6-2 - Socket 7 processor with the 3DNow! technology and first to have the 100MHz bus.
AMD K6-3 - K6-2 chip with Level 2 cache memory that runs at the speed of the CPU.
AMD Duron - Like the Intel Celeron, the AMD Duron is an affordable solution processor allowing for the price in the overall computer to drop.
AMD Athlon - AMD generation with features such as the 200MHz bus speed
AMD Thunderbird - The latest AMD processor, this processor is the socket version.
Speed
The speed of the processor is an important consideration as it is what will rate the speed of the computer and help the computer run faster overall.
When looking at the speed of processors available, we highly recommend that you do not purchase or consider purchasing a processor that has just been released. The price of the processor will be at a premium price and if you give that processor 2-4 months it will drop in price dramatically.

Effects

Upgrading the computer processor may have the below effects on the computer.
  • Allow for programs that may require steeper processor requirements to be run.
  • Help the computer or computer programs speed in load and opening time. Note: In many cases this may not be noticed or will not be dramatic.

CPU installation

Additional help and information about installing a computer processor and other computer hardware can be found through our Installation section.
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Top 10 free PC programs everyone should have

Top 10 free PC programs everyone should have

There are millions of free and open source projects available, many of them better than any commercially available product. Below is a short listing of what we think is the best out there, broken down into ten categories.

Antivirus and malware protection

Most PC users realize that they need protection on their computer or may have an installed antivirus program from their computer manufacturer. What most don't realize is that there are free programs that are just as good and in some cases better than the commercial products. Below are our recommendations
Antivirus program: Avast! or AVG
Malware and Spyware protection: Malwarebytes

Backup solutions

There are dozens of free and commercially available backup programs for computers. Unfortunately, many of those backups are stored locally, meaning if your house were to catch fire, get robbed, or if you lost your backup discs all your data would be lost. This is why when dealing with important data we suggest users use online backup services.
Online backup solution: Mozy or Dropbox

Browsers

Although Microsoft Internet Explorer comes pre-installed on Windows computers. There are several excellent free alternatives that everyone should try. These free alternatives can often be faster, have more options, and in many cases be more secure than Internet Explorer.
Internet Browser: Mozilla Firefox or Google Chrome

Compression utility

When downloading files on the Internet you'll eventually encounter a .zip, .rar, or other compressed file. Dealing with these files can be easy with our below free file compression utility.
File compression utility: 7-Zip

Disc ripper and creation utility

Creating an audio or data CD/DVD, ripping the data from an audio CD, or creating a CD from a .ISO file can also be done freely using our below free recommendation.
CD burner utility: CDBurnerXP

E-mail

E-mail is yet another service that can be done freely. Most users today use online e-mail solutions like the one listed below. However, for those still using an e-mail client such as Microsoft Outlook we strongly suggest one or both of the below suggestions.
E-mail client: Mozilla Thunderbird
Online e-mail: Gmail

FTP, SFTP, and SSH Utility

Users who maintain their own web page or need to upload or download files to or from a server have to use an FTP utility or an SSH client. There are many commercial programs capable of doing this but our below free recommendations beats them all.
FTP client: Filezilla
SSH client: MobaXterm and Putty

Image editor, paint program, and picture organizer

There are many great free solutions for editing, creating, and organizing your images on your computer. Many of the programs capable of doing these tasks can be several hundred dollars, but all of the below programs are completely free.
Image editor: GIMP
Paint program: Paint.net
Picture organizer: Google Picasa

Multimedia

There are dozens of different multimedia programs with different capabilities and limitations. Below are our top free multimedia programs for watching video files and recording audio.
Audio editing and creating tool: Audacity
Video and DVD Player: VLC and MPC-HC

Office Suite

An Office suite such as Microsoft Office is often one of the most expensive programs that a user can install on their computer. Why install these expensive programs when there are free solutions that are just as good.
Office suite: OpenOffice
Notepad and Source code editor: Notepad++
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Top 10 Twitter tips and tricks

Top 10 Twitter tips and tricks

TwitterBelow is a listing of our top 10 favorite Twitter tips and tricks. These tips help make your Twitter experience more enjoyable and can help increase your followers.

Customize

  • Change your profile picture. Use a picture of yourself to make it seem more personalized if this is your personal Twitter account.
  • Utilize as much of the 160-character limit Twitter BIO space allows. Include keywords your followers or potential followers may be trying to find.
  • Create your own background image. However, do not make the image too much like an ad or sales pitch. The background image must be less than 800k and we recommend a size of 1600x1200 for a large image or smaller if you plan on tiling the image or just having it on the left-hand side. Finally, keep in mind that smaller resolutions and monitor sizes hide much of the background.

Third-party tools

Take advantage of the hundreds of different third-party online tools and services that enhance your Twitter experience. Below are a few of our favorites.
  • TwitPic - Take advantage of TwitPic to post pictures on your tweets. If you want to post pictures while away from the computer, use the Twitterific app.
  • Qwitter - Great service that sends an e-mail anytime someone unsubscribes from your Twitter profile and mentions a possible Twitter post you made that may have caused them to leave.
  • Manageflitter - Fantastic site for managing your followers and getting an overview of people not following you back, quiet users, and inactive users.
  • WeFollow - Great website that allows you to add yourself to a listing of Twitter users by tags you find interesting.
  • SocialOomph - Another great service with a collection of free Twitter tools including the ability to schedule when tweets gets posted.
  • Twitter Fan Wiki Apps - Finally, this wiki has a listing of several hundred different Twitter applications and tools for users wanting more.

Use Twitter search

Take full advantage of the Twitter search tool. Below are just a few tips that can help improve your search capabilities on Twitter.
  • Search for your website or blog URL and see if others are mentioning your page.
  • Search for anything near you by adding near:"city state". For example, typingnear:"Salt lake city Utah" club would return current tweets that have happened in Salt Lake City, Utah with the keyword club in them.
  • Find people whom you may enjoy following by searching for keywords that interested you.
  • If you do not want tweets with links add ? -filter:links at the end of your search query.
  • Need more options, use the Advanced Twitter search.
  • Anytime you get excellent results click the "Save this search" button to save that search. These searches can then be found under "Saved Searches" on the right-hand part of your profile on the old Twitter interface or under the "Searches" tab next to your timeline on the new Twitter interface.

Computer Hope Twitter FollowersFollowers

  • Engage followers.
  • Do not follow too many people. No one wants to follow someone following thousands of people with only 10 followers.
  • Retweet interesting posts.
  • Retweet and participate in conversations with people with lots of followers.
  • Realize it is impossible for anyone to read every tweet.
  • When first joining do not follow hundreds of people, doing this may mark you as a bot.

Create useful and interesting tweets

  • Try to make all your tweets informative, useful, or funny.
  • Do not post mundane posts, e.g. eating a bowl of cereal.
  • Add hashtags to your tweets. For example, if your tweet is about computers, consider adding #computer in the tweet.
  • Tweet frequently. No one is going to follow someone they do not know who has not tweeted in months. Try to tweet a few times a week or daily if you can manage.
  • Do not whine or complain. Most people unfollow anyone who constantly whines or complains.
  • Try to make your valuable tweets during the times people will most likely see them.
  • Keep some space available in your tweet in case someone retweets your post.
  • Use special characters in your tweets.

Know the lingo

Know the Twitter lingo, these are just a few examples: @replyDirect Message (DM),FollowerHashtagRetweet (RT)Trending Topics, and Tweet. See the Twitter description for a complete listing of Twitter terms and Lingo and related terms.

Follow the masters

Following a few of the masters of Twitter and Social Networking give you an understanding of how to tweet better, posts to RT, and inspiration for tweets of your own. Below are the top ten Twitters we recommend following.
  • Twitaholic - A full listing of the top users on Twitter based on Followers, which is great for finding and following the top users and learning what they are doing with their account.
Tip: Many of the first few hundred people are celebrities on Twitaholic, if they do not interest you skip the first page.

Create and use lists

Twitter list iconTwitter lists are an excellent method of filtering filter through the people you follow. To create a list, click the Lists link, and then click Create a list. After creating a list, visit the person's profile page you want to add and click the list icon (shown to the right). Our Computers and Tech list is an example of a public list we created.

Go Mobile

Apple iPhones, Blackberry phones, Android phones, Windows phone 7 phones, and most of the other smartphones have Twitter applications. Take full advantage of these applications. For users who do not have smartphones Twitter also has extensive support for SMS, which can send tweets over a text message.

Advertise

  • Mention your Twitter page as many places as you can, e.g. your business card, e-mail signatures, web page, blog, and on Facebook.
  • Create a tweet button or at least your Twitter name on your pages, similar to the examples below.
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Top 10 Windows 7 tips

Top 10 Windows 7 tips

Windows 7 keyboard shortcuts

Use the below Windows 7 keyboard shortcuts to make the most of your Windows 7 experience.
Windows key and the arrow keys
Pressing the Windows key and Left or Right arrow keys will dock the window your viewing to the left or right-hand side of the screen. Pressing the Windows key and the Up arrow will maximize a window and pressing the Windows key and the Down arrow will resize and then minimize the window.
Use Shift: To stretch a window vertically, press the Windows key + Shift + the Up arrow. If you have multiple monitors use the Windows key + Shift + the Left or Right arrow keys to move the window to another monitor.
Windows key and plus and minus keys
If you ever need to zoom in or out of what is being displayed on your screen press the Windows key and the + (plus) or - (minus) keys. Pressing the plus zooms in and once zoomed in the minus will zoom out.
Clear all background programs
If you are not viewing a window in full screen and have other windows open in the background clear all background open windows by pressing the Windows key + theHome key.

Use the Windows 7 search

Find and run anything in Windows by using the Windows 7 search box. Click the Start orb or press then Windows key and type the name of the program you want to run or file you want to edit. Windows 7 does a good job at finding an exact match and simply pressing enter will execute that program or open that file. If more than one match is found, use the up and down arrow keys to select the file you want to open and then press Enter.
Windows 7 search box
Running as administrator: Some programs may require administrator mode in order to function properly. You can run any program as administrator from the search box by typing the name of the program you want to run and then instead of pressing Enter to run the program press Ctrl+Shift+Enter to run as administrator. If you want to click and run a program as administrator hold down the Ctrl+Shift and then click the icon.

Take full advantage of the Taskbar

Pin programs to the Taskbar
All programs can be pinned to the Taskbar and allow easy access to your favorite programs without having to use the Start Menu. To Pin a program to the Taskbar right-click on the program or shortcut to the program and in the menu choose the Pin to Taskbar option. Alternatively you can also drag the icon to the Taskbar.
If you want to remove a pinned program, right-click on the Taskbar icon and click Unpin this program from the Taskbar. Alternatively you can also drag the icon off of the task bar and then click Unpin this program from the Taskbar.
Move the icons and pinned programs
Any pinned or opened program on the Taskbar can be moved and arranged. Left-click on any icon on the Taskbar and drag it to the location you want it to remain.
Windows key and a number
Pressing the Windows key and a number on the top row of your keyboard open the Window corresponding to the open program on your Taskbar. For example, in the picture below of the Windows 7 Taskbar, Firefox i the first icon, Control panel is the second icon, and Adobe Photoshop is the third icon. If the Windows key + 3 was pressed, Adobe Photoshop would become the active window. To make it even easier arrange your icons (as mentioned above) from left to right by most frequently opened.
Windows 7 Taskbar
Pin your favorite folder
If you frequently access the same folder (e.g. your favorites, my documents, Dropbox, etc.) pin the folder to the Windows Explorer icon on the Taskbar. To do this drag your favorite folder to the Taskbar until you see Pin to Windows Explorer. Once pinned, right-click the Explorer icon to access that folder under the Pinned section.
Open a second instance
If you want to open a second instance or window of a program that is already open, press and hold the Shift key and then click the program icon on the Taskbar.
Get to the Desktop
Click the Desktop button on the far right edge of the Taskbar to get to the Desktop.

Windows 7 notification area aka systrayCustomize the Notification area

Windows Vista and Windows 7 allow the Windows Notification area (aka Systray) to be modified. By default, many of the icons shown in the past are now hidden and give Windows a much cleaner look. Customize this area to make icons show or not show by clicking on the up arrow next to the icons and selecting Customize, as shown in the picture. Once in Customize you can choose what programs show, don't show, or only show notifications.

Improve the quality of your text

Use the Windows ClearType Text Tuner to improve the overall quality of all text you read on your screen. To start the ClearType Text Tuner click the Start Orb and typecttune.exe and press Enter.

Enable and disable Windows 7 features

Turn on and off Windows features by clicking Start, typing features and press enter. In the Programs and Features window on the left-hand column click Turn Windows features on or off and in the Windows Features box check or uncheck the features you want enabled or disabled.

Use the Reliability and Performance Monitor

View the reliability history of your computer by using the Reliability Monitor. Click the Start orb and type reliability and press enter for View Reliability History. In the Reliability Monitor, you'll be able to view the overall reliability of your computer and be able to identify any past problems your computer has had.
If you want to view the performance of your computer in real time use the Performance Monitor. Click the Start orb and type performance and press enter for the Performance Monitor. In the Performance Monitor, you can view your computers performance in real time or view a log of your systems performance.

Re-enable underlined keyboard shortcuts

File menu underlined shortcutsBy default, Windows 7 has the underlines for keyboard shortcuts like those shown in the picture. To re-enable these underlines in all Windows programs follow the steps below.
  1. Open the Control Panel
  2. In the Control Panel click Ease of Access
  3. In Ease of Access click Change how your keyboard works
  4. Finally, check the Underline keyboard shortcuts and access keys and then click Ok.

Rename multiple files at once

To change the name of multiple files at once highlight all the files you want to rename inWindows Explorer and press the F2 key. Type in the new name you want to use for all files and press enter. Once done all files will be renamed to the name entered followed by a unique number.

Install Windows Essentials

Install missing Windows software by installing the free Windows Essentials software package that includes: Windows Live Family Safety, Windows Live Mail, Windows Live Messenger, SkyDrive for Windows, Windows Movie Maker, Windows Photo Gallery, Windows Live Writer, and Microsoft Outlook Hotmail Connector.