---
title: "What are overlays in Operating System?"  
description: "What are overlays in Operating System?"  
author: "Kalin"  
published: 2022-04-04  
canonical: https://answers.mindstick.com/qa/96699/what-are-overlays-in-operating-system  
category: "troubleshooting"  
tags: ["troubleshooting", "operating systems"]  
reading_time: 1 minute  

---

# What are overlays in Operating System?

What are overlays in Operating System?

## Answers

### Answer by Hitesh Vohra

![What are overlays in Operating System?](https://answers.mindstick.com/questionanswer/394ee623-844a-440a-9508-2ca88aa1f6b4/images/0f9a3943-2c69-411e-ae4d-8356fd26fd07.jpeg)\

- 'The process of moving a block of programme [**code**](https://answers.mindstick.com/qa/95024/why-is-windows-10-failing-to-boot-with-a-0xc0000001-error-code) or other data into internal memory, replacing what is previously stored,' according to the definition.
- **Overlaying** is a method of allowing applications to be larger than the primary memory of a computer. Because of the limitations of physical memory (which is internal memory for a system-on-chip) and the lack of virtual memory features, an embedded would generally use overlays.
- Overlaying needs programmers to break their object code into many entirely independent portions, with the overlay manager attached to the code automatically loading and swapping the required overlays as needed.

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**Read More: [Explain about different types of memory in Operating System?](https://answers.mindstick.com/qa/96701/explain-about-different-types-of-memory-in-operating-system)**


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Original Source: https://answers.mindstick.com/qa/96699/what-are-overlays-in-operating-system

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