What is Computer Security

WHAT IS COMPUTER SECURITY?

Computer security is defined as the protection of computer systems and information from harm, theft and unauthorized use.

Advancement of computer technology has radically changed the world; resultantly, most of the works whether it is matter of nation’s security system or buying a shoe online everything depends on computer.

Such increased dependency also raises the issue of security, as most of the data is now stored in the computer system.

Your computer systems store various sorts of data and hence if it is not secured, then you might be in for a big trouble.

WHY DO WE NEED COMPUTER SECURITY?

Computer security is required for the following main reasons:-

  Ø  To prevent damage of the hardware.

  Ø  To prevent theft or damage of the installed hardware.

  Ø  To prevent theft or damage of the stored data and information.

  Ø  To prevent the disruption of service.

In order to prevent the data and information we need to take some necessary steps and precautions…

 Steps to prevent data and information:-

  Ø  Keep updating your system regularly.

  Ø  Use a Firewall to protect data.

  Ø  Keep your system virus away by using antivirus software.

  Ø  Make backup of all your important files.

  Ø  Use anti-spyware software.

  Ø  Backup all your important files regularly.

Precautions to be taken while using internet:-

  Ø  Do not click on any link that you don’t know as it may be dangerous for your computer system to        attack by a virus.

  Ø  Do not open unauthorized and unlawful websites.

  Ø  Do not download unsolicited data from unknown websites.

What is defragmentation?

Frequent saving and deleting of file(data) from the hard disk creates problems in performance and also reduce the space.

Defragmentation is the process of cleaning the unwanted parts and drives and restore the system to run smoothly.

Following are the simple steps of defragmentation:-

  Ø  Start menu

  Ø  All Programs

  Ø  Accessories

  Ø  System Tools

  Ø  Disk Defragmenter