CHAPTER 6: THE SYSTEM UNIT

System Unit   


System unit, the actual computer




The main part, processing unit and devices, of a microcomputer is a system unit. A system unit includes a board called a motherboard that holds a microprocessor chip (or a CPU), memory chips, and expansion slots. Electronic circuitry is printed on the board and it connects between two main parts of a microcomputer, the microprocessor and primary storage and other parts. The system unit is housed within the system cabinet. A system unit includes the following parts:

• Motherboard
• Microprocessor
• Memory Chips
• System Clock
• Buses
• Ports
• Expansion Slots and Cards

Citation:

• http://www.webopedia.com/TERM/S/system_unit.html
• http://www.techterms.com/definition/system_unit
• http://windows.microsoft.com/en-US/windows-vista/Parts-of-a-computer