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III. Writing exercises:
Exercise 1. Complete the sentences with the suggested words:
multitasking\ assembly\ an interface\ support\ language processors.
When operating systems were first developed, they could ……. only single users; many mainframe operating systems and some microcomputer operating systems can now support ……(performing several tasks so fast that it appears they are being done at once. However, both high-level and ……..languages must be translated into machine language for the CPU to use them. Operating system creates ……between user and the system hardware. System Software can be classified as operating system and……..
Exercise 2. Fill in the table with words and expressions from the text:
| The part of the operating system | Which? | is most important; without these instructions, the computer cannot operate. |
| System software is any computer software | Which? | so that application software can perform a task. |
| If system software is stored on | What? | it is usually termed firmware. |
Exercise 3. Compose a story on one of the topics (up to 100 words):
“The importance of system software for computer operation”
“Trusted operating systems”
“The invention and development of operating systems”
Lesson 3
OPERATING SYSTEM
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