Main » TERM » R »

real mode

An execution mode supported by the Intel 80286 and later processors. In real mode, these processors imitate the Intel 8088 and 8086 microprocessors, although they run much faster. The other mode available is called protected mode. In protected mode, programs can access extended memory and virtual memory. Protected mode also supports multitasking. The 80386 and later microprocessors support a third mode called virtual 8086 mode.In virtual mode, these microprocessors can run several real-mode programs at once.

The DOS operating system was not designed to take advantage of protected mode, so it always executesprograms in real mode unless a protected mode extender is run first.







TECH RESOURCES FROM OUR PARTNERS
LATEST ARTICLES
3 Free Java Courses for Beginners

List of free online Java courses for students and IT professionals looking to enhance their skills . Read More »

SEO Dictionary

From keyword analysis to backlinks and Google search engine algorithm updates, our search engine optimization glossary lists 85 SEO terms you need... Read More »

Slideshow: History of Microsoft Operating Systems

Microsoft Windows is a family of operating systems for personal computers. In this article we look at the history of Microsoft operating... Read More »

STUDY GUIDES
Java Basics, Part 1

Java is a high-level programming language. This guide describes the basics of Java, providing an overview of syntax, variables, data types and... Read More »

Java Basics, Part 2

This second Study Guide describes the basics of Java, providing an overview of operators, modifiers and control Structures. Read More »

The 7 Layers of the OSI Model

The Open System Interconnection (OSI) model defines a networking framework to implement protocols in seven layers. Use this handy guide to compare... Read More »