Examprafful
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This document discusses computer input and output devices and important central processing unit items. It describes common input devices like keyboards, mice, scanners, and speech recognition. Output devices mentioned include monitors, printers, plotters, and projectors. The central processing unit's arithmetic logic unit performs arithmetic and logical operations, while the control unit extracts instructions from memory, decodes and executes them, calling on the ALU when needed.
Examprafful
- 1. COMPUTER FOR MANAGEMENT Presented By: Prafful Kumar Akela
- 2. INPUT DEVICES Keyboard devices Point-and-draw devices Data scanning devices Digitizer Electronic cards based devices Speech recognition devices Vision based devices
- 3. OUTPUT DEVICES Monitors Printers Plotters Screen image projector Voice response systems
- 4. IMPORTANT CPU ITEMS: Arithmetic Logic Unit(ALU): - performs arithmetic and logical operations. Control Unit(CU): - extracts instructions from memory and decodes and executes them, calling on the ALU when necessary
- 5. IMPORTANT CPU ITEMS: Arithmetic Logic Unit(ALU): - performs arithmetic and logical operations. Control Unit(CU): - extracts instructions from memory and decodes and executes them, calling on the ALU when necessary