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Computer Awareness Class 2

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Computer Awareness Class 2 S P SHARMA CLASSES CLASS -2 & 3 www.spsharmag.com Parts of Computer Computer Hardware Software Input Devices Processing Devices Hardwar Storage Devices Output Devices 1 9910707562 [email protected] S P SHARMA CLASSES CLASS -2 & 3 www.spsharmag.com Keyboard Mouse JoyStick Scanner Input Microphone Devices Lightpen Web Camera Bluetooth Touchpad 2 9910707562 [email protected] S P SHARMA CLASSES CLASS -2 & 3 www.spsharmag.com 1. Mouse 2. Keyboard 4. Digital 3. Scanner Camera 5. Web 6. Joysticks Camera 8. Touch 7. Track Pad/ Ball Screen 10. Bar 9. Light Pen Code Reader 12. 11. Graphics Microphone Tablets 14. Optical 13. Mark Magnetic Reader Ink (Used for Character Answer- Reader Sheet (Used in Marking Bank) Purpose) 3 9910707562 [email protected] S P SHARMA CLASSES CLASS -2 & 3 www.spsharmag.com 15. Magnetic Card 16. Reader Biometric (Used in Devices Shops, Colleges, Stations etc) 17. Bluetooth Processing Devices CPU (Central Processing Unit) ALU CU (Control (Arithmetic Registers Unit) Logic Unit) 4 9910707562 [email protected] S P SHARMA CLASSES CLASS -2 & 3 www.spsharmag.com Storage Devices Primary Secondary Storage Storage Devices Devices 5 9910707562 [email protected] S P SHARMA CLASSES CLASS -2 & 3 www.spsharmag.com Primary Storage Devices RAM ROM SRAM DRAM PROM EPROM EEPROM RAM: Random Access Memory (Volatile Memory) ROM: Read Only Memory SRAM: Static Random Access Memory (Static RAM) DRAM: Dynamic Random Access Memory (Dynamic RAM) ROM: Read Only Memory (Non- Volatile Memory) PROM: Programmable Read Only Memory EPROM: Erasable Programmable Read Only Memory EEPROM: Electronic Erasable Programmable Read Only Memory 6 9910707562 [email protected] S P SHARMA CLASSES CLASS -2 & 3 www.spsharmag.com Hard Disk Drive(HDD) Optical Disk Pen Drive Secondary Storage Devices Zip Drive Floppy Disk Memory Card 7 9910707562 [email protected] S P SHARMA CLASSES CLASS -2 & 3 www.spsharmag.com Hard Disk IDE (PATA) SATA SCSI SAS IDE (PATA): Integrated Device Electronics, Parallel Advance Technology Attachment SATA: Serial Advanced Technology Attachment SCSI: Small Computer System Interface SAS: Serial Attached Small Computer System Interface (Serial Attached SCSI) 8 9910707562 [email protected] S P SHARMA CLASSES CLASS -2 & 3 www.spsharmag.com Optical Disk DVD (Digital CD (Compact Versatile Disk) Disk) CD-R CD-RW DVD-R DVD-RW B. Optical C. Pen Disks: CD-R, Drive CD-RW, DVD-R, DVD-RW D. E. Floppy Zip Drive Disks F. Memory G. External Cards Hard Disk 9 9910707562 [email protected] S P SHARMA CLASSES CLASS -2 & 3 www.spsharmag.com Peripheral Devices Modem/ Internet Switches/Hub Router TV Tuner Card Adapter Peripheral Devices 1. 2. Modem/ Switches/Hub Internet Adapter 3. 4. Router TV Tuner Card 10 9910707562 [email protected] S P SHARMA CLASSES CLASS -2 & 3 www.spsharmag.com Internal Components 1. The Mother Board 2. Expansion Slots 3. CMOS Battery 4. Cooling Fan 5. Network Card 6. Graphics Card 7. Power Supply 8. Memory Slots Unit (SMPS) 11 9910707562 [email protected] S P SHARMA CLASSES CLASS -2 & 3 www.spsharmag.com Output Devices Soft Copy Hard Copy Devices Devices Monitor Speaker Projector Printer Plotter 1. 2. Printer Monitor 3. 4. Speaker Projector 5. Plotter 12 9910707562 [email protected] S P SHARMA CLASSES CLASS -2 & 3 www.spsharmag.com Monitor Cathode Ray Thin-Film Liquid Crystal Light Emitted Tube (CRT) Transistor (TFT) Display (LCD) Diode (LED) Printer Non Impact Printer Impact Printer Dot Daisy Chain Band Line Drum Inkject Laser Matrix Wheel Printer Printer Printer Printer Printer Printer Printer Printer 13 9910707562 [email protected] .
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