Downtime Meaning & Definition

Downtime refers to periods of time during which a computer system, server or network is shut off or unavailable for use. Systems go through periods of downtime for a variety of reasons, including power or hardware failure, system crashes, hacker attacks, system reboots, operating system and/or software updates, lack of network connectivity and more.

While some downtime events are planned as part of maintenance schedules (“planned downtime”), in many cases periods of downtime result from unplanned or unexpected events like network outages and hardware failure.

Downtime vs. Uptime and High Availability

In contrast to downtime, the periods of time when a computer system is fully operational and available to users and other systems are referred to as uptime or periods of availability.

A closely related term is High Availability, which refers to computer systems that have a very high rate of uptime and that have been developed to be able to survive single points of failure in order to avoid potential downtime.system downtime

System administrators and other IT personnel are often tasked with ensuring the availability of mission-critical computer systems and preventing and minimizing enterprise IT downtime events as much as possible.

Forrest Stroud
Forrest Stroud
Forrest is an experienced, entrepreneurial and well-rounded professional with 15+ years covering technology, business software, website design, programming and more.

Top Articles

Huge List Of Texting and Online Chat Abbreviations

From A3 to ZZZ we list 1,559 text message and online chat abbreviations to help you translate and understand today's texting lingo. Includes Top...

How To Create A Desktop Shortcut To A Website

This Webopedia guide will show you how to create a desktop shortcut to a website using Firefox, Chrome or Internet Explorer (IE). Creating a desktop...

The History Of Windows Operating Systems

Microsoft Windows is a family of operating systems. We look at the history of Microsoft's Windows operating systems (Windows OS) from 1985 to present...

Hotmail [Outlook] Email Accounts

  By Vangie Beal Hotmail is one of the first public webmail services that can be accessed from any web browser. Prior to Hotmail and its...

Legacy Code Definition &...

Legacy code refers to source code that has been inherited from a previous...

Unregulated Power Supply Definition...

An unregulated power supply is a system that transforms input voltage into direct...

Cybersecurity Awareness Training Definition...

Cybersecurity awareness training informs employees of the attack surfaces and vectors in their...