What is loader? - Definition from WhatIs.com
Part of the Operating systems glossary:

In a computer operating system , a loader is a component that locates a given program (which can be an application or, in some cases, part of the operating system itself) in offline storage (such as a hard disk ), loads it into main storage (in a personal computer, it's called random access memory ), and gives that program control of the computer (allows it to execute its instruction s).

A program that is loaded may itself contain components that are not initially loaded into main storage, but can be loaded if and when their logic is needed. In a multitasking operating system, a program that is sometimes called a dispatcher juggles the computer processor's time among different tasks and calls the loader when a program associated with a task is not already in main storage. (By program here, we mean a binary file that is the result of a programming language compilation, linkage editing, or some other program preparation process.)

This was last updated in April 2005
Contributor(s): Jabeer Basha Sayed
Posted by: Margaret Rouse

Related Terms

Definitions

  • Windows 10 (Windows Ten)

    - Windows 10 is the version of Microsoft's flagship operating system that follows Windows 8. Microsoft chose to skip Windows 9 as a way of suggesting discontinuity with earlier versions rather than i... (WhatIs.com)

  • Sysprep (System Preparation Tool)

    - Sysprep is Microsoft's System Preparation tool intended to duplicate, test and deliver new installations for the Windows operating system based on an established installation. (SearchEnterpriseDesktop.com)

  • virtual machine

    - A virtual machine (VM) shares physical hardware resources with other users but isolates the operating system or application to avoid changing the end-user experience. (SearchServerVirtualization.com)

Glossaries

  • Operating systems

    - Terms related to operating systems, including definitions about open source and proprietary operating systems and words and phrases about system programs, boot mechanisms, kernels, command interpre...

  • Internet applications

    - This WhatIs.com glossary contains terms related to Internet applications, including definitions about Software as a Service (SaaS) delivery models and words and phrases about web sites, e-commerce ...

Ask a Question. Find an Answer.Powered by ITKnowledgeExchange.com

Ask An IT Question

Get answers from your peers on your most technical challenges

Ask Question

Tech TalkComment

Share
Comments

    Results

    Contribute to the conversation

    All fields are required. Comments will appear at the bottom of the article.