Computer Science OCR Revision Quiz

This is a one-way bus which sends the address to memory of the instruction to be fetched.

• Data bus

• Address bus

• Control bus

• Night bus

A channel of communication used to transport data and instructions in the CPU.

• Bus

• Wires

• Register

• Network

The speed of a computer's CPU, measured in hertz. This indicates the number of fetch-decode-execute cycles that can run per second.

• Clock speed

• Frequency

• Cache

• RAM

A special purpose computer built into another device.

• An embedded system

• An operating system

• A general purpose computer

• An implanted system

1 GHz = ? per second

• 1,000

• 1,000,000

• 1,000,000,000

• 1,000,000,000,000

The section of very small and very high speed memory within the CPU that stores data to be processed.

• Register

• Cache

• RAM

• ROM

Non-volatile storage not directly accessible by the CPU and used for long-term storage of programs and data.

• Primary storage

• Secondary storage

• ROM

• Cache

The basic firmware that is embedded in the computer ROM chip used to start a computer.

• BIOS

• ROM

• RAM

• Cache

A section of a secondary storage drive which is temporarily used as RAM.

• Cache

• Virtual memory

• Virtual storage

• ROM

The smallest unit of data in computing represented by a 1 or 0.

• bit

• nibble

• byte

• binary