Saturday, October 13, 2012

Utilities

 
Formatting a disk.

When you format a disk, you divide the disk into areas and sectors. When you format a disk all the data on the disk would be erased. So make sure that you have a copy of all the files that you don't want to be erased when you format the disk.

What does Defregmentation means?

Defregmentation means rearranges the files and free space on your computer so that files are opened more quickly. If you are doing defregmentation for the first time it is good idea to do it either before leaving home for an outing or before you sleep.



 



Compressed folders.

When we compressed file it is much fastest to be transfared to other computers.





What does scandisk do?

Scandisk checks your disk for any errors and faults.








What is a computer virus?
A computer virus are programs that disturbs the normal operation of a computer. To prevent computer viruses we should have an Antivirus programs. The Antivirus program should be updated regulary to be kept up to data against latest viruses

Sunday, October 7, 2012

The computer system.

What is a computer?
A computer is a device that accepts input, process data, stores data and produces output.

Input-process-output
           
           storage

Input is the process of entering data into the computer such as:
 

mouse



Output is the process of getting out data from the computer such as:
printer
What is Hardware?
Hardware are the physical units that make up a computer system that can be touched and seen

What is softwarfe?
Software is another word for programs that you can't touch.

We have two types of software. System software such as Windows 7 and application software such as Miucrosoft word