1 System Unit 2 Input Devices Keyboard Mouse

������������ : 1. System Unit ���� 2. Input Devices ��Keyboard, Mouse 3. Output Devices ��Monitor, Printer, Scanner ������� 3

������ (System Unit) ������� : Processor Motherboard RAM Hard Disk Sound Card, AGP Card, LAN Card Power Supply Unit CDROM/DVDROM 4

������ (System Unit) ������(Memory) ������ : Primary Memory: RAM, ROM Secondary Memory: Storage Device (Hard Disk, CD, Floppy Disk, USB Device, etc. ) ������ (Unit of Memory) 8 bit = 1 byte = 1 Character 1024 byte = 1 Kilobyte (KB) 1024 Kb = 1 Megabyte (MB) 1024 MB = 1 Gigabyte (GB) 6

������ (System Unit) RAM (Random Access Memory) R D S R DR 7

������ (System Unit) ����� (Hard Disk) IDE (Integrated Device) ����� IDE Connector ����� (SATA= Serial Advance Technology Attachment) SATA Connector 8

������ (System Unit) Sound Card AGP Card LAN Card 10

������ (System Unit) ����� (Motherboard) 11

����� (Motherboard) 12

���� (Mouse) Input Device ����� (Scanner) 15

������� Input Device (Keyboard) Names of Some of the Character keys ! Exclamation mark @ At symbol # Octothorpe, sharp, or Hash % Percent ^ Caret & And or Ampersand § Section / front slash back slash ~ Tilde Main areas of computer keyboard - Typing (A, B, C, D, etc. ) - Numeric pad (1, 2, 3, 4, etc. ) - Function keys (F 1 - F 12) - Cursor control keys (Arrow keys) 16

Output Device ����� (Monitor) CRT (Cathode Ray Tube) Monitor LCD (Liquid Crystal Display) Monitor 17

Output Device Printer 18

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