Computer Components
A computer system is a collection of electronic and mechanical devices operating as a unit.
Input devices are used to get data into the computer system
Processing devices manipulate the data using to a set of instructions called a program
Output devices are used to get data out of a computer system
Storage devices they can store the data for use at a later stage
Communications devices can send the data to another computer system.
Computer cabinet Case: A computer cabinet, is the enclosure that contains most of the components of a computer.
System Unit Devices and Peripherals
The system unit is the main container for system devices. It protects the delicate electronic and mechanical devices from damage. Typical system unit devices include:
• Motherboard
• CPU (Processor)
• Memory
• Disk drives
• Expansion cards - sound card, graphics card, network card etc.
• Ports - USB etc.
• Power supply
Peripherals are devices that connect to the system unit using cables or wireless technologies.
• Monitor
• Keyboard
• Mouse
• Speakers
• Printer
• Plotter
• Scanner