SSS TWO WEEK THREE LESSON NOTE (ICT_223)

 

Ss2

TOPIC:  HANDLING COMPUTER FILES II

Introduction

This is the concept that a file is always vulnerable and is prone to be lost or missing in the computer. File security is a feature of your file system which controls user access and places limitation to what users can do to various files on your computer.

Effect of file security

1.     Loss of data: computer users and experts often experience data loss when files are destroyed and sometimes there is no hope of recovery and this is as a result of files being tempered with on the computer or through virus invasion or sudden crash of the operating system.

2.     Overwriting: this is a process of writing a binary set of data on a memory data that has been overwritten. This is generally considered to be unrecoverable.

3.     Dis-orientation of the file system: as a result of someone tempering with the computer system, there may be displacement of files and rearrangement of file system.

Methods of file security  

  • 1.     Lock computers away when leaving the office, if possible, turn computer screen away from windows.
  • 2.     Use surge protectors for all power outlets.
  • 3.     Back-up: refers to making copies of data so that they can be restored if something happens to the computer.
  • 4.     Use passwords to reduce the risk of someone accessing your computer.
  • 5.     Encrypt your files in case someone does access your computer or bypass your password protection.





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