Computer viruses are programs written by "mean" people. These virus programs
are placed into a commonly used program so that program will run the attached
virus program as it boots, therefore, it is said that the virus "infects" the
executable file or program. Executable files include Macintosh "system files"
[such as system extensions, INITs and control panels] and application programs
[such as word processing programs and spreadsheet programs.] Viruses work the
same ways in Windows or DOS machines by infecting zip or exe files.
A virus is inactive until you execute an infected program or application OR
start your computer from a disk that has infected system files. Once a virus is
active, it loads into your computer's memory and may save itself to your hard
drive or copies itself to applications or system files on disks you use.
Some viruses are programmed specifically to damage the data on your computer
by corrupting programs, deleting files, or even erasing your entire hard drive.
Many viruses do nothing more than display a message or make sounds / verbal
comments at a certain time or a programming event after replicating themselves
to be picked up by other users one way or another. Other viruses make your
computer's system behave erratically or crash frequently. Sadly many people who
have problems or frequent crashes using their computers do not realize that they
have a virus and live with the inconveniences.
What Viruses Don't Do!
Computer viruses can not infect write protected disks or infect written
documents. Viruses do not infect compressed files, unless the file was infected
prior to the compression. [Compressed files are programs or files with its
common characters, etc. removed to take up less space on a disk.] Viruses do not
infect computer hardware, such as monitors or computer chips; they only infect
software.
In addition, Macintosh viruses do not infect DOS / Window computer software
and vice versa. For example, the Melissa virus incident of late 1998 and the
ILOVEYOU virus of 2000 worked only on Window based machines and could not
operate on Macintosh computers.
One further note-> viruses do not necessarily let you know they are present
in your machine, even after being destructive. If your computer is not operating
properly, it is a good practice to check for viruses with a current "virus
checking" program.
How do Viruses Spread?
Viruses begin to work and spread when you start up the program or application
of which the virus is present. For example, a word processing program that
contains a virus will place the virus in memory every time the word processing
program is run.
Once in memory, one of a number of things can happen. The virus may be
programmed to attach to other applications, disks or folders. It may infect a
network if given the opportunity.
Viruses behave in different ways. Some viruses stay active only when the
application it is part of is running. Turn the computer off and the virus is
inactive. Other viruses will operate every time you turn on your computer after
infecting a system file or network.
How to Prevent a Virus Invasion!
Trojan Horses
A trojan horse is not a virus. It is a program that you run because you think
it will serve a useful purpose such as a game or provides entertainment. Like a
"trojan horse" it serves not as it claims, but to damage files or perhaps plants
a virus into your computer. A trojan horse does not replicate or spread like a
virus. Most virus checking programs detect trojan horses.
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Saturday, November 27, 2010
What are Computer Viruses?
Wednesday, November 24, 2010
WinRAR downloading
Wordpress
Website:
http://www.wordpress.org/
Developer:
Wordpress Development Team
Current Version:
Wordpress 3.0.1
Supported Systems:
PHP & MySQL Server
License:
Freeware (Open source)
First Release:
03 January, 2004 (7 years ago)
Latest Release:
29 July, 2010 (4 months ago)
Name: WordPress 3.0.1 (IIS)
File Size: 2.83 MB
File Size: 2.83 MB
SetPoint Driver
Developer:
Logitech
Current Version:
SetPoint 6.20
Supported Systems:
Windows 98, 2000, XP, Vista
License:
Freeware
First Release:
30 November, 2007 (3 years ago)
Latest Release:
17 November, 2010 (1 week ago)
Name: SetPoint 6.20 (x64)
File Size: 25.95 MB
File Size: 25.95 MB
IntelliPoint Driver
Website:
http://www.microsoft.com/hardware/
Developer:
Microsoft Corporation
Current Version:
IntelliPoint 8.0
Supported Systems:
Windows 2000, XP, Vista, 7
License:
Freeware
First Release:
14 October, 2006 (4 years ago)
ATI Catalyst Drivers
Developer:
AMD Inc.
Current Version:
ATI Catalyst Driver 10.11
Supported Systems:
Windows 98, 2000, XP, Vista
License:
Freeware
First Release:
10 June, 2005 (5 years ago)
Latest Release:
17 November, 2010 (1 week ago)
Nero,free downloading
Website:
http://www.nero.com
Developer:
Nero Inc.
Current Version:
Nero Multimedia Suite 10.0.13100
Supported Systems:
Windows 95, 98, ME, 2000, XP, Vista
License:
Trialware (30 Day Trial)
First Release:
21 March, 2007 (4 years ago)
Latest Release:
12 April, 2010 (7 months ago)
Name: Nero Multimedia Suite 10.0.13100
File Size: 292.5 MB
Date Released: 12 April, 2010 (7 months ago)
File Size: 292.5 MB
Date Released: 12 April, 2010 (7 months ago)
Internet Explorer downloading,free,offline
Google Chrome downloading,free,offline
AVG Anti-Virus Free Edition 2011
Website:
http://free.grisoft.com/
Developer:
AVG Technologies
Current Version:
Avg Free Edition 2011 10.0.1170
Supported Systems:
Windows 98 (AVG 7.5 524), 2000, XP, Vista
License:
Freeware
First Release:
10 March, 2008 (3 years ago)
Latest Release:
23 November, 2010 (2 days ago)
Name: AVG Free Edition 2011.1152
File Size: 137.38 MB
File Size: 137.38 MB
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About Me
Hi there!
I'm Ajab Khan,29, Pakistani Citizen living at Lahore, Pakistan. Currently Working at University of the Punjab, Pakistan.Started blogging since July 14, 2010 I have several blogs and first article was about how to use your mobile as a webcam you can access that article here, I love to collect interesting data if you like to share with me you can contact me by email here is the id ajabbiz@yahoo.com
I'm Ajab Khan,29, Pakistani Citizen living at Lahore, Pakistan. Currently Working at University of the Punjab, Pakistan.Started blogging since July 14, 2010 I have several blogs and first article was about how to use your mobile as a webcam you can access that article here, I love to collect interesting data if you like to share with me you can contact me by email here is the id ajabbiz@yahoo.com