12 CSC General - Systems 1

This component of a CPU performs all mathematic and logic operations.

• Arithmetic logic unit (ALU)

• Control unit (CU)

• Registers

• Program counter

• System clock

This component of a CPU takes instructions from the computer’s memory (RAM), decodes them, and forwards them onto other parts of the CPU for execution.

• Arithmetic logic unit (ALU)

• Control unit (CU)

• Registers

• Program counter

• System clock

This component of a CPU is primary storage, holding data currently being processed by the CPU.

• Arithmetic logic unit (ALU)

• Control unit (CU)

• Registers

• Program counter

• System clock

This component of a CPU contains the address (location) in the computer’s RAM of the instruction currently being executed.

• Arithmetic logic unit (ALU)

• Control unit (CU)

• Registers

• Program counter

• System clock

This component of a CPU regulates the timing and speed of a computer system’s functions. On a modern CPU, it is measured in gigahertz (billions of cycles) per second.

• Arithmetic logic unit (ALU)

• Control unit (CU)

• Registers

• Program counter

• System clock

Any element of a computer that's physical. This includes things like monitors, keyboards, and also the insides of devices, like microchips and hard drives.

• Hardware

• Software

Anything that tells hardware what to do and how to do it, for example apps and operating systems.

• Hardware

• Software

The smallest measure of data size on a computer is the...

• bit

• byte

1,000 bytes = 1 ...

• byte

• megabyte

• kilobyte

• gigabyte

• terabyte

1.35 megabytes = 0.135 ...

• byte

• megabyte

• kilobyte

• gigabyte

• terabyte