Date: Lesson Meeting people Lesson materials appendix lead in activity

C System utilities

These are small programs included with an OS that improve a system’s performance. They can be desk accessories, device drivers, or system extensions activated when you turn on the PC.

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  A crashed disk rescuer is used to restore disks and corrupted files.
  
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  An accessibility program makes a PC easier for disabled users to use.
  
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  A compression utility rewrites data so that it takes less space on disk.
  
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  A media player lets you watch DVDs, play music and listen to the radio on the Web.
  

Read the text and find the following
1. the difference between system software and application software

. System software controls the basic functions of a computer, e.g. operating systems, programming software and utility programs

Application software lets you do specific jobs such as writing letters, doing calculations, drawing or playing games..

2. software that enables users and programs to communicate with hardware.

Operating system

3. the meaning of ‘multitasking’

Multitasking is a computer’s ability to do more than one job at a time.

4. a multi-user OS used on large, powerful computer systems

.Unix

5. the operating system that is freely distributed.

Linux

6. the operating system designed by Apple.

Mac OS

7. the OS created by Microsoft.

The Windows family

8. the meaning of WIMP in a graphical user interface (GUI)