The central processing unit
What does CPU stand for? - answer Central Processing Unit
What does the CPU do? - answerIt carries out all of the processing in a computer.
Why is it called a unit? - answerBecause it is a self-contained device
The purpose of the arithmetic and logic unit (ALU) is - answerTo carry out all of the
arithmetic and logical operations.
The purpose of the control unit is to - answerUse electrical signals to control the flow of
data within the CPU
In the fetch-execute cycle, explain happens in the FETCH part of the cycle - answerThe
CPU fetches instructions from memory
In the fetch-execute cycle, explain happens in the DECODE part of the cycle -
answerThe CPU decodes the instructions to find out what processing to do.
In the fetch-execute cycle, explain happens in the EXECUTE part of the cycle -
answerThe CPU executes (carries out) the instructions.
The boot sequence is... - answerIs a sequence of processes that contain all of the
information and instructions to get the computer up and running.
What is CPU speed - answerDetermines how fast the CPU can process data and
commands.
The boot loader is.. - answerA program that starts the book sequence when the
computer is switched on.
The speed of the CPU depends on THREE things, these are.. - answer1) The clock
speed (processor speed)
2) Cache memory
3) The number of processor cores.
Explain the term clock speed. - answerThe speed of the fetch-execute cycle is
determined by the electronic clock chip.
The clock speed is measured in... - answerHerts (Hz). This is cycles per seconds.
What does CPU stand for? - answer Central Processing Unit
What does the CPU do? - answerIt carries out all of the processing in a computer.
Why is it called a unit? - answerBecause it is a self-contained device
The purpose of the arithmetic and logic unit (ALU) is - answerTo carry out all of the
arithmetic and logical operations.
The purpose of the control unit is to - answerUse electrical signals to control the flow of
data within the CPU
In the fetch-execute cycle, explain happens in the FETCH part of the cycle - answerThe
CPU fetches instructions from memory
In the fetch-execute cycle, explain happens in the DECODE part of the cycle -
answerThe CPU decodes the instructions to find out what processing to do.
In the fetch-execute cycle, explain happens in the EXECUTE part of the cycle -
answerThe CPU executes (carries out) the instructions.
The boot sequence is... - answerIs a sequence of processes that contain all of the
information and instructions to get the computer up and running.
What is CPU speed - answerDetermines how fast the CPU can process data and
commands.
The boot loader is.. - answerA program that starts the book sequence when the
computer is switched on.
The speed of the CPU depends on THREE things, these are.. - answer1) The clock
speed (processor speed)
2) Cache memory
3) The number of processor cores.
Explain the term clock speed. - answerThe speed of the fetch-execute cycle is
determined by the electronic clock chip.
The clock speed is measured in... - answerHerts (Hz). This is cycles per seconds.
