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Evolution of Operating Systems

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ICT lec 4
6 Дәріс, â 2 Ð ÐµÑ Ñ Ñ Ð°Ð½Ð°Ð»Ñ Ò Ð¶Ò±Ð¼Ñ Ñ .Ð¢Ð¡Ð , 7 сынып Қмж, 651241, Реферат та?ырыбы «Жалпы дене шыны?тыру», М. Әуезовтің «Абай жолы» романындағы әдет – ғұрыптар мен салт – дәстүрлер.

Evolution of Operating Systems
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Early Systems (1950)
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Simple Batch Systems (1960)
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Multiprogrammed Batch Systems (1970)
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Time-Sharing and Real-Time Systems (1970)
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Personal/Desktop Computers (1980)
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Multiprocessor Systems (1980)
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Networked/Distributed Systems (1980)
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Web-based Systems (1990)

EXAMPLE OF AN EARLY COMPUTER SYSTEM

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Serve as tools for doing system maintenance and repairs not handled by operating system
•
Utilities make it easier for users to:
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Copy files between storage devices
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Repair damaged data files
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Translate files so different programs can read them
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Guard against viruses and other harmful programs
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Compress files so they take up less space
Utility Programs

When you turn on the computer, the CPU automatically begins executing instructions
stored in ROM. The operating system (OS) loads from the disk into part of the system’s memory.
The Operating System

The OS loads the application program into memory and remains in memory, so it can provide
services to the application program—display on-screen menus, communicate with the printer, and
perform other common actions.
The Operating System

•
User Interface
– The part of the OS that you interface with.
•
Kernel
– The core of the OS. Interacts with the BIOS (at one end), and the UI (at the other end).
•

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