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
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Keyboard
Mouse
JoyStick
Scanner
Input Microphone Devices
Lightpen
Web Camera
Bluetooth
Touchpad
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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)
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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)
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Storage Devices
Primary Secondary Storage Storage Devices Devices
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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
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Hard Disk Drive(HDD)
Optical Disk
Pen Drive Secondary Storage Devices Zip Drive
Floppy Disk
Memory Card
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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)
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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
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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
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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)
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Output Devices
Soft Copy Hard Copy Devices Devices
Monitor Speaker Projector Printer Plotter
1. 2. Printer Monitor
3. 4. Speaker Projector
5. Plotter
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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
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