[Crawl-Date: 2026-04-19]
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[URL: https://griffinitgroup.com/it-glossary/cpu]
---
title: What Is a CPU? | Central Processing Unit
description: The primary component of a computer that performs most of the processing. Often called the "brain" of the computer, it executes instructions and processes...
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og_title: What Is a CPU? | Central Processing Unit
og_description: The primary component of a computer that performs most of the processing. Often called the "brain" of the computer, it executes instructions and processes...
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# What Is a CPU? | Central Processing Unit
> The primary component of a computer that performs most of the processing. Often called the "brain" of the computer, it executes instructions and processes...

---

Hardware

Beginner
## What Is a CPU? | Central Processing Unit
What Is a CPU? CPU (Central Processing Unit) the primary component of a computer that performs most of the processing. Often called the "brain" of the computer, it executes instructions and processes data for applications.

## Why This Matters for Your Business
An underpowered CPU creates bottlenecks that slow down every task your employees perform — from opening spreadsheets to running design software. Understanding CPU specifications helps you make smarter purchasing decisions and avoid buying machines that will feel sluggish within a year.

## Related Hardware Terms

[Beginner
## RAM (Random Access Memory)
A computer's short-term memory that temporarily stores data being actively used. More RAM allows computers to run more programs simultaneously and handle larger files efficiently.](https://griffinitgroup.com/it-glossary/ram) [Beginner
## Server
A computer or program that provides services to other computers (clients) on a network. Servers can host websites, store files, run applications, manage email, and perform many other functions.](https://griffinitgroup.com/it-glossary/server) [Beginner
## SSD (Solid State Drive)
A storage device that uses flash memory to store data, with no moving parts. SSDs are faster, more durable, and more energy-efficient than traditional hard disk drives (HDDs).](https://griffinitgroup.com/it-glossary/ssd) [Beginner
## UPS (Uninterruptible Power Supply)
A device that provides emergency battery backup power when the main electrical supply fails or fluctuates. A UPS protects connected equipment from power surges, brownouts, and outages — allowing systems to continue operating or shut down gracefully without data loss or hardware damage.](https://griffinitgroup.com/it-glossary/ups)

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## Need Help With Hardware?

Our team can help you understand and implement the right technology solutions for your business. Get expert guidance from local IT professionals.

[Schedule a Consultation](https://griffinitgroup.com/contact) [Call (289) 667-4000](tel:+12896674000)

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