Computer Systems

Computer Systems

1. Definition

   • It is the combination of hardware and software
     • Hardware
       • All the Physical structure of the computers
     • Software
       • Computer programs producers and documentation that performs some tasks and a computer system

2. Inputs and Outputs

   • Inputs
     • A device through which, energy or information enters a system
   • Output
     • A place where power or information leaves a system.

3. Types of Networks

   • 1. LAN Local Area Network 2. WLAN Wireless Local Area Network 3. WAN Wide Area Network 4. MAN Metropolitan Area Network 5. SAN Storage Area Network 6. CAN Campus Area Network 7. PAN Personal Area Network 8. DAN Desk Area Network

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