3. DATA PROCESSED INFORMATION 2. Output to a Computer system. 2. Input to a Computer system. 1. End product of Data Processing. 1. Collection of Facts & Figures. INFORMATION DATA
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5. Categorization of Computers Categorization of Computers Based on Size Based on Purpose Microcomputers Minicomputers Mainframe Super Computers PC Laptop Palmtop Analog Computers Hybrid Computers Digital Computers
6. Analog Computers : Analog computer works on the principle of analogous data. The Computers which can process analog signals, is know as Analog Computer. For eg. Pressure gauge, ECG Machine etc. Digital Computers : Digital computer works on the principle of binary system. Each and every instruction and data are to be converted in 0’s and 1’s which the machine understands.
7. Micro Computers : Micro computers, also called Personal computers are small enough to be kept on the table. They use a Silicon chip, called microprocessor.
8. Personal Computer : Commonly seen in the form of Desktop Computers used at offices, homes, shops, schools etc. Types of Microcomputers
9. Laptop : Also called as Notebook, can be used easily by carrying it from one place to another.
10. Palmtop : It is a kind of Micro computer which fits in the hand/palm and can be carried in a pocket . It works with the help of a pen which is used to select things on the screen.
11. Mini Computers : Mini computer is larger and more powerful than a PC. They work at high speed and support many users at the same time .
12. Mainframe Computers : Mainframe computer is very large, powerful and expensive. It has ‘thousands’ of PC’s attached to it. They occupied an entire room.
13. Super Computers : Super computer is the fastest computer used till today. They are being used a lot in research work, to process complex scientific calculations.
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