Introduction to computers
1. Types of computers
1.Supercomputers
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Definition: The fastest and most powerful computers designed to perform complex calculations at extremely high speeds.
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Use: Weather forecasting, nuclear research, scientific simulations, and space exploration.
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Example: IBM Summit, Fugaku (Japan).
2. Mainframe Computers
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Definition: Very large computers used by big organizations to handle and process massive amounts of data.
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Use: Banking, insurance, government departments, airlines (for booking and transaction processing).
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Example: IBM Z-series mainframes.
3. Minicomputers (Mid-range computers)
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Definition: Smaller than mainframes but larger than personal computers. They can serve multiple users at once.
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Use: Small organizations, laboratories, and departments for shared data processing.
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Example: DEC PDP series.
4. Microcomputers (Personal Computers)
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Definition: The most common type of computer designed for individual use.
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Use: Education, business, entertainment, and home tasks.
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Examples: Desktops, laptops, and tablets.
5. Embedded Systems
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Definition: Special-purpose computers built into other devices to control specific functions.
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Use: Found in washing machines, cars, ATMs, televisions, and mobile phones.
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Example: Microcontroller inside a microwave oven.