Browse Definitions By Topic Business software Cloud computing Computer science Data analytics and AI Data centers IT management Networking Security Software development IT management Learn about the core elements of IT management, including operations, tech support and personal computing, as well as terms related to IT careers, certifications and project management. Certifications IT career paths IT operations Personal computing Project management Technical support Recently Published Definitions optical mouse An optical mouse is an advanced computer pointing device that uses a light-emitting diode (LED), optical sensor and digital signal processor (DSP) in... DisplayPort DisplayPort is an interface for digital displays, particularly computer monitors. View All IT management Definitions Word of the Day blockchain Blockchain is a record-keeping technology designed to make it impossible to hack the system or forge the data stored on it, thereby making it secure and immutable.See More Subscribe to the Word of the Day Professional Development The gig economy encompasses an array of freelance and short-term job opportunities. In recent years, it has grown faster than it can be tracked and regulated. Meet The Editor Amanda Hetler Browse our tech-specific sites or tell us about a new term. Have some feedback? See a definition that needs updating? Let me know! Newest and Updated Terms digital economy mind-brain identity theory project post-mortem Microsoft Windows Credential Guard security awareness training chief risk officer (CRO) Salesforce network engineer authentication, authorization a