# Lesson Notes — System Software vs Application Software vs Utility Software

- Link: https://doss.academy/course-1-computer-literacy/unit-2-pc-hardware-system-architecture/lesson-3-system-software-vs-application-software-vs-utility-software-c1u2l3/lesson-notes-c1u2l3/
- Published: 2026-10-19T12:09:08-04:00
- Author: matthew.leffler@jefferson.kyschools.us

Course 1: Computer Literacy / Unit 2: PC Hardware & System Architecture / Lesson
3: System Software vs Application Software vs Utility Software

## Lesson overview

All the software on a computer falls into a few groups. Sorting it helps you understand
what each program is for and which ones you can safely remove or leave alone.

## The types of software

 * **System software** runs the computer itself. The **operating system** (such 
   as Windows, macOS, or ChromeOS) is the main example. It manages the hardware,
   runs other programs, and provides the screen you use. A **driver** is system 
   software that lets the operating system talk to a device such as a printer. **
   Firmware** is system software stored on a hardware chip.
 * **Application software** helps you do a task, such as writing a paper, browsing
   the web, editing a photo, or playing a game.
 * **Utility software** maintains and protects the computer. Examples are **antivirus**
   programs, **compression** tools that shrink files into a zip, a **defragmenter**
   that rearranges files on a hard disk drive, and the **Task Manager** that shows
   which programs are running and lets you close one that has frozen.
 * **Programming software** is the fourth type. It includes the tools programmers
   use to write and test code, such as code editors and compilers.

## How they work together

When you open a word processor, the operating system finds it on storage, loads 
it into RAM, and gives it screen space. The application does the writing work. A
utility such as antivirus watches in the background. A driver makes sure the printer
understands your document when you click Print.

## Sort it out

  |  Software |  Type |  
   |  Windows or ChromeOS |  System |  
 |  Google Docs or Microsoft Word |  Application |  
 |  Antivirus program |  Utility |  
 |  Printer driver |  System |  
 |  A code editor |  Programming |

## Check your understanding

 1. What does an operating system do, and why does every computer need one?
 2. Is Task Manager an application or a utility? Explain.
 3. Draw a three-circle Venn diagram of system, application, and utility software and
    place five programs you use.

Use this lesson’s Key Terms page to build your glossary.