Browse Definitions By Topic
- AppDev
- Business Software
- Computer Science
- Consumer Tech
- Data Center
- IT Mgmt
- Networking
- Study Resources
- Security
- Storage & Data Mgmt
AppDev
Definitions about software applications and development including operating system vocabulary, programming terminology, words about Internet applications and app/dev definitions.
- Agile, Scrum, XP
- Apple
- Internet applications
- Java
- Linux
- Microsoft
- Open source
- Operating systems
- Programming
- Software applications
- Software development
- Web services, SOA
Recently Published Definitions
- building information modeling (BIM)
Building information modeling (BIM) is traditional architectural computer aided design (CAD) with 3D modeling that also incorporates best practice ...
- interrupt
An interrupt is a signal from a device attached to a computer or from a program within the computer that causes the main program that operates the ...
Business Software
These glossaries contain terms related to the development, implementation and management of enterprise business software.
Recently Published Definitions
- GWX (Get Windows 10)
GWX (get Windows 10) is a Windows upgrade app that was initially installed after Windows update KB3035583; the app has been the subject of consumer ...
- Apache Storm
Storm is a free and open source (FOSS) distributed real-time computation system developed by the Apache Foundation.
Computer Science
Definitions about computer science including computing fundamentals vocabulary, protocol and standards terminology, words about microprocessors and electronics definitions.
- Computing fundamentals
- Electronics
- IT standards and organizations
- Mathematics
- Microprocessors
- Nanotechnology
- Protocols
- Robotics
Recently Published Definitions
- pounds per square inch (PSI)
PSI is commonly used to measure the pressure of gasses (pneumatic pressure) or liquids (hydraulic pressure). PSI is also used as a measure of tensile...
- pneumatics
Pneumatics (pronounced new-MATT-ix) is an aspect of physics and engineering that is concerned with using the energy in compressed gas to make ...
Consumer Tech
Definitions about consumer technology including Internet acronyms, tech lingo, multimedia definitions, words about personal computing and peripherals as well as wireless and mobile definitions.
- Desktop PCs
- Internet acronyms and lingo
- Internet technologies
- Multimedia and graphics
- Peripherals
- Personal computing
- Printers
- Wireless and mobile
Recently Published Definitions
- mobile number privacy
Mobile number privacy is the protection of the phone user’s number from unwanted access.
- omnidirectional antenna
An omnidirectional antenna is a wireless transmitting or receiving antenna that radiates or intercepts radio-frequency (RF) electromagnetic fields ...
Data Center
Definitions about data centers including hardware, virtualization and cloud computing.
- Cloud computing
- Converged infrastructure
- Data center management
- Disaster recovery
- Hardware
- IT Operations
- Storage hardware
- Virtualization
Recently Published Definitions
- VUCA (volatility, uncertainty, complexity and ambiguity)
VUCA is an acronym that stands for volatility, uncertainty, complexity and ambiguity, a combination of qualities that, taken together, characterize ...
- motherboard
A motherboard is the main printed circuit board (PCB) in a computer. The motherboard is a computer’s central communications backbone connectivity ...
IT Mgmt
Definitions about information technology management including compliance vocabulary, business terminology, words about security, storage, network and software management and search engine optimization (SEO).
- Business software
- Business terms
- Compliance
- Customer relationship management
- Government IT
- Healthcare IT
- IT Procurement
- Network administration
- Project management
- Search engine optimization (SEO)
- Security management
- Software management
- Storage management
Recently Published Definitions
- purchase intent
Purchase intent is the probability that a consumer will buy a product or service.
- public relations (PR)
Public relations (PR) is the use of communications to manage public perception of an individual or an organization. PR is ingrained in the culture ...
Networking
Definitions about networking including routing and switching vocabulary, telecom terminology, words about email and messaging, mobile and wireless.
- Circuit switched services equipment and providers
- Data transmission
- Email and messaging
- High-speed networks
- Internet of Things
- Local area networks (LANs)
- Network hardware
- Network software
- Networking and communications
- Routing and switching
- Smart grid
- Telecom
- Voice over IP (VoIP)
- Wireless LANs
- Wireless technologies
Recently Published Definitions
- acoustical mesh network
An acoustical mesh network is a decentralized communication system that transmits data by using sound to connect computers. There are both legitimate...
- smart hard hat
A smart hard hat is personal protective equipment (PPE) designed to enhance worker performance and safety in construction and related industries ...
Study Resources
Learning and research resources including learning guides, cheat sheets, quizzes, quick look-ups and fast references.
- Cheat sheets
- Fast references
- Learning guides
- Podcasting Glossary
- Quick Start Glossaries
- Quizzes
- Video Production Glossary
Recently Published Definitions
- Trick or Treat Halloween Quiz
This WhatIs.com Learn IT quiz will test your knowledge about tech terms that you might find on your doorstep or in your trick-or-treat bag Halloween ...
- Quick Start Glossary: Hybrid cloud
A handy printable glossary of hybrid cloud vocabulary. Online, the terms are linked to our full definitions and more related resources.
Security
Definitions about security including malware vocabulary, security threats and countermeasures terminology, words about viruses and Trojans, access control, authorization and authentication.
- Application security
- Authentication
- Malware
- Network security
- Security threats and countermeasures
- Spyware
Recently Published Definitions
- virus signature (virus definition)
A virus signature (also known as a virus definition) is a file or multiple files that are downloaded by a security program to identify a computer ...
- C&C servers
Command and control servers (C&C servers) are computers that issue commands to members of a botnet. Botnet members may be referred to a zombies and ...
Storage & Data Mgmt
Definitions about storage and data management including backup/recovery vocabulary, business intelligence terminology, storage area networks and database management.
- Backup and recovery
- Business intelligence - business analytics
- Content management
- Customer data management
- Data and data management
- Data deduplication
- Database
- Network-attached storage (NAS)
- Storage-area network (SAN)
Recently Published Definitions
- blockchain
Blockchain is a type of distributed ledger that stores a permanent and tamper-proof record of transaction data. Distributed ledgers can be thought of...
- cognitive computing
Cognitive computing is the simulation of human thought processes in a computerized model. The goal of cognitive computing is to create automated IT ...
Word of the Day
Newest and Updated Terms
Know-IT-All
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Slack offering developer funds for integrated apps
In an effort to be more competitive in the team collaboration tools space, Slack is offering $80 million to developers who build integrated applications.
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Embrace off-topic chatter on team messaging apps
Small talk can yield a big return on investment. In an age when most workplace communication happens digitally, team messaging apps -- and their GIFs -- boost morale.
Trending Topics
Essential Knowledge
Slack vs. Microsoft Teams: Which is best for enterprise collaboration?
While Slack came on the scene as a new enterprise collaboration tool, Microsoft Teams is swift on its heels and promises integration with Office 365....
Why Microsoft Teams could change up the collaboration software market
Microsoft's new collaboration tool, Teams, could give Slack a run for its money. Expert Reda Chouffani offers a look at five Microsoft Teams features.
Microsoft Teams takes aim at Slack
Microsoft's new collaboration tool makes sense for Office 365 customers, but it would be a tough sell for companies using a different platform and ...
Microsoft unshackles users from Windows with Office add-ins for Mac
Making Office add-ins available for Mac is one of many steps Microsoft has taken away from its old Windows-only strategy.
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Storage
Five strategies for using flash in your next project
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The benefits of a converged infrastructure
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SearchCompliance
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cyborg anthropologist
A cyborg anthropologist is an individual who studies the interaction between humans and technology, observing how technology can ...
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RegTech
RegTech, or regulatory technology, is a term used to describe technology that is used to help streamline the process of ...
SearchSecurity
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security
Security, in information technology (IT), is the defense of digital information and IT assets against internal and external, ...
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insider threat
An insider threat is a malicious hacker (also called a cracker or a black hat) who is an employee or officer of a business, ...
SearchHealthIT
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HIPAA Privacy Rule
The Standards for Privacy of Individually Identifiable Health Information, commonly known as the HIPAA Privacy Rule, establishes ...
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HIPAA business associate agreement (BAA)
Under the U.S. Health Insurance Portability and Accountability Act of 1996, a HIPAA business associate agreement (BAA) is a ...
SearchDisasterRecovery
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data recovery
Data recovery restores data that has been lost, accidentally deleted, corrupted or made inaccessible. Learn how data recovery ...
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disaster recovery plan (DRP)
A company's disaster recovery policy is enhanced with a documented DR plan that formulates strategies, and outlines preparation ...
SearchStorage
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Secure Digital card (SD card)
SD cards use flash memory to provide nonvolatile storage. They are more rugged than traditional storage media and are used in ...
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data storage
In a computer, storage is the place where data is held in an electromagnetic or optical form for access by a computer processor.
SearchSolidStateStorage
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flash file system
Flash file systems are designed specifically for memory devices. A well-designed flash device and flash file system ensure ...
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IOPS (input/output operations per second)
IOPS measures the maximum number of reads and writes to non-contiguous storage. It is not an actual benchmark since vendor ...
SearchCloudStorage
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RESTful API
A RESTful application program interface breaks down a transaction to create a series of small modules, each of which addresses an...
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cloud storage infrastructure
Cloud storage infrastructure is the hardware and software framework that supports the computing requirements of a private or ...