Browse Definitions by Topic
Application Development
Definitions about software applications and development including operating system vocabulary, programming terminology, words about Internet applications and terms used in app/dev.
Business Software
Search or browse for definitions related to the procurement, implementation and management of line of business software applications that are vital to running an enterprise.
Computer Science
Definitions about computer science including computing fundamentals vocabulary, protocol and standards terminology, words about microprocessors and terms used in electronics.
Consumer Technology
Definitions about consumer technology including Internet acronyms, tech lingo, multimedia definitions, words about personal computing and peripherals as well as terms used in wireless and mobile computing.
Data Center Management
Definitions used in data center management, including hardware, virtualization and cloud computing.
IT Management
Search or browse for definitions about information technology (IT) management. Many of our definitions are hosted on technology-specific websites to help you quickly learn about each definition's business and tech context.
Networking
Definitions about networking including routing and switching vocabulary, telecom terminology and words about email, messaging and mobile.
Quick Study Resources
Browse our learning and research resources to get up to speed about an IT topic quickly. Our quick study resources include buyer's guides, topical learning guides, cheat sheets, quizzes and quick look-up fast references.
Security
This cyber security glossary explains the meaning of terms about different types of computer security threats as well as words about application security, access control, network intrusion detection, security awareness training and computer forensics.
Storage and Data Mgmt
Definitions about storage and data management including backup/recovery vocabulary, business intelligence terminology, storage area networks and database management.