What is an ALU?

The ALU, or Arithmetic Logic Unit, is a section of the CPU (Central Processing Unit) dedicated to working with Arithmetic and Logic...

It can process a variety of mini-tasks (operations) and is used in conjunction with other parts of the CPU, such as the Control Unit, within cycles of the CPU (clock-cycles). During the execute part of the Fetch-Decode-Execute cycle, it takes in data / operations (usually stored in registers) and spits a result out (back into a register). In essense, it is the brain of the CPU.

Answered by Tobi A. Computing tutor

4960 Views

See similar Computing A Level tutors

Related Computing A Level answers

All answers ▸

What is the difference between simplex, half duplex and full duplex?


What is the difference between interpreted and intermediate code?


How can the idea of precondtioning as part of 'Thinking Ahead' benefit a programmer when writing code?


Explain a bubble sort. You may use pseudocode and/or diagrams to help demonstrate your answer.


We're here to help

contact us iconContact usWhatsapp logoMessage us on Whatsapptelephone icon+44 (0) 203 773 6020
Facebook logoInstagram logoLinkedIn logo

© MyTutorWeb Ltd 2013–2025

Terms & Conditions|Privacy Policy
Cookie Preferences