Parts of a computer and The Components of the system unit

1. It interprets & carries out the basic instructions that operate a computer.

• HDD

• VGA

• MOTHERBOARD

• PROCESSOR

IT holds data waiting to be processed & instruction waiting to be executed.

• MEMORY

• MOTHERBOARD

• PROCESSOR

• POWER SUPPLY

Processor & Memory are connected to a circuit board called the

• HDD

• PROCESSOR

• MOTHERBOARD

• ADAPTER CARDS

These are circuit boards that provide connections and functions not built into the motherboard.

• Adapter cards (expansion slots):

• power supply

• motherboard

• cpu

Devices outside the system unit often attach to the

• KEYBOARD

• MOUSE

• USB

• PORTS

It provides the computer with the electricity.

• motherboard

• power supply

• hdd

• cd/dvd

It performs arithmetic, comparison and other operations

• control unit

• Arithmetic Logic Unit

• register

• accumulator

This holds instructions, data values, memory addresses of both the instructions and data.

• register

• arithmetic logic unit

• system clock

• data

This consists of electronic components that store instructions waiting to be executed by the processor, data needed by those instructions, and the results of processed data ( information).

• register

• memory

• cpu

• network

This is a device that plugs in a USB port on the system  & contains multiple USB ports.

• usb ports

• usb hub

• usb

• ports