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Wednesday, 31 July 2013
Saturday, 1 June 2013
Tuesday, 28 May 2013
Internet basic information
Internet
The Internet is a collection of computer networks that connects millions of computers around the world. Internet is a Global Network, Which provides users the access to the information available through out the world.
Web Page
A Web page is a document on the Web. Web pages can include text, pictures, sound and video. The World Wide Web is also called the Web, WWW or W3.
Web SiteA Web site is a collection of Web pages maintained by a college, university, government agency, company or individual.
Popular Web Sites
Some Web sites are popular and can get very busy. You may find that it takes longer to view the information on a busy Web site. If it is taking a long time to view a Web site, try connecting again later.
Some informative Web sites URLs (Uniform Resource Locator) are listed here;
- www.yahoo.com www.Google.com www.Punjab.gov.pk
- www.domainxcess.com www.pvtc.gop.pk
1. Computer with Internet connection.
2. Internet account with a connection provider.
3. Internet browser software.
4. Email software.
5. Other supported software.
6. Optional: stereo speakers, microphone, and webcam.
Internet Service Provider
An Internet Service Provider (ISP) is a company that gives you accesses to the Internet for a fee. You can visit there websites by typing the given home page addresses in URL of internet explorer or if you are using Netscape then type addresses in Location bar
Here is the List for some local Internet Service Providers (ISPs) available in Lahore
ISP’s Home Page
1. Comsats http://www.comsats.net.pk
2. Brain http://www.Brain.net.pk
3. Nexlinx http://www.nexlinx.net.pk
4. WOL http://www.wol.net.pk
5. Worldcall http://www.magic.net.pk
6. Cyber Net http://www.cyber.net.pk
7. PTCL http://www.ptcl.com.pk
8. Wateen http://www.wateen.net
Some internet sites have different extensions, given below are the extensions which are being used for different sites.
ORGANIZATION COUNTRY
COM commercial pk Pakistan
EDU education ca Canada
GOV government it Italy
MIL military JP Japan
NET network au Australia
ORG organization uk United Kingdom
Types of Softwares
Software, also called Programs. Software is a set of instructions that tells the computer what to do and how to do it.
Types of the Software
Basically there are two types of the Software
System Software
Application Software
System Software
System software consists of the programs that control or maintains the operations of the computer and its devices. System software serves as the interface between user, computer and application software.
There are further two types of the system software
Operating System
Utility Programs
Operating System: is a set of programs that coordinates all the activities among computer hardware devices. The operating system also contains instructions that allow users to run application software. For examples Windows, DOS, Linux, UNIX, Apple Macintosh, Sun-Solaris etc.
Utility Programs: allows a user to perform maintenance type tasks usually related to managing a computer, its devices, or its programs. For examples Antivirus, Backup and Recovery of software, Disk cleanup, Defragmenter, Drivers etc.
Application Software
Application Software consists of programs that perform specific tasks for users. Popular application software includes word processing software, spreadsheet software, database software and presentation graphics software.
Symbols of Keyboards
Symbols of Keyboards
Symbol |
Name
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Symbol
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Name
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`
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Grave Accent |
~
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Tilde |
!
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Exclamation Sign |
@
|
Commercial AT |
#
|
Hash or Number Sign |
$
|
Dollar Sign |
%
|
Percent Sign |
^
|
Circumflex Sign or Caret |
&
|
Ampersand Sign or Concatenation Sign |
*
|
Asterisk |
(
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Left or opening Parenthesis |
)
|
Right or closing Parenthesis |
-
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Hyphen |
_
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Underscore or Low Line |
=
|
Equals Sign |
+
|
Plus Sign or Sign of Addition |
[
|
Left Squares bracket |
]
|
Right Square Brackets |
{
|
Left Curly Bracket |
}
|
Right Curly Bracket |
;
|
Sami Colon |
:
|
Colon |
‘
|
Single Quotation Mark, or Apostrophe |
“
|
Double Quotation Mark |
\
|
Reverse Slash, Or Reverse Solidus |
¦
|
Vertical Bar or Broken bar or Pipe sign |
,
|
Comma |
<
|
Less-Than Sign |
.
|
Full Stop |
>
|
Greater Than Sign |
/
|
Forward Slash, or Forward Solidus |
?
|
Question Mark |
Window Information
Windows
Windows is a family of operating systems developed by Microsoft Corporation for personal computers Windows dominates the personal computer world, running, by some estimates, on 90% of all personal computers. Windows provides a graphical user interface (GUI), virtual memory management, multitasking, and support for many peripheral devices. The name windows comes form the basic function of the operating system, it lets you look into your computer, just like looking through a window.
Microsoft introduced following popular versions of Windows:
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Microsoft introduced Windows Seven to much fanfare. It represents an evolution from Windows Vista and includes many new features and system requirements. With those new features comes some new complexity - and combined with Microsoft Office 2007 - a new understanding of how everything works together. Seven is the biggest change in the GUI in years and learning some of the time saving techniques will help you be more productive with the new Operating System.
Windows SEVEN helps you organize all of the files and programs within your computer. Think of Windows as a large paper filing cabinet. Within you filing cabinet, you have hanging files labeled in a logical order. Within those hanging files, you have manila file folders that contain sub-sets of information. Windows allows you to accomplish the same system in an electronic format. You can open, sort, move print, rename, find or delete files easily. In addition to managing your files, folders, and applications, Windows has much more to offer.