Computer science
Definitions about computer science including computing fundamentals vocabulary, protocol and standards terminology, words about microprocessors and terms used in electronics.

Electronics
Terms related to electronics, including definitions about electrical components and words and phrases about computers, laptops parts, digital cameras, televisions and home appliances.
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What are functional requirements?
Functional requirements are the desired operations of a program or system.
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What is HDMI (High-Definition Multimedia Interface)?
HDMI (High-Definition Multimedia Interface) is a proprietary specification designed to ensure compatibility between video and audio devices over a single digital interface.
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Android OS
Android OS is a Linux-based mobile operating system that primarily runs on smartphones and tablets.
Internet technologies
This WhatIs.com glossary contains terms related to Internet technologies, including definitions about port numbers, standards and protocols and words and phrases about how the Internet works.
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What is IDoc (intermediate document)?
IDoc (intermediate document) is a standard data structure used in SAP applications to transfer data to and from SAP system applications and external systems.
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What is the artificial intelligence of things (AIoT)?
The artificial intelligence of things (AIoT) is the combination of AI technologies and the internet of things (IoT) infrastructure.
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What is a smart home? Everything you need to know
A smart home is a residence that uses internet-connected devices to enable the remote monitoring and management of appliances and systems, such as lighting and heating.
IT standards and organizations
Terms related to information technology (IT) standards, including definitions about IT organizations and words and phrases about policies and compliance.
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What is HIMSS (Healthcare Information and Management Systems Society)?
The Healthcare Information and Management Systems Society (HIMSS) is a nonprofit organization focused on promoting the best use of IT and management systems to advance the healthcare industry.
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What is HDMI (High-Definition Multimedia Interface)?
HDMI (High-Definition Multimedia Interface) is a proprietary specification designed to ensure compatibility between video and audio devices over a single digital interface.
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What is the Common Information Model (CIM)?
The Common Information Model (CIM) is a computer industry standard that defines device and application characteristics so system administrators and management programs can control devices and applications from different manufacturers.
Microprocessors
Terms related to microprocessors, including definitions about silicon chips and words and phrases about computer processors.
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What is an inductor?
An inductor is a passive electronic component that temporarily stores energy in a magnetic field when electric current flows through the inductor's coil.
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What is an arithmetic logic unit (ALU) and how does it work?
An arithmetic logic unit (ALU) is a part of a central processing unit (CPU) that carries out arithmetic and logic operations.
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What is a quantum processing unit (QPU)?
A quantum processing unit (QPU) is a hardware device that uses quantum mechanics -- such as superposition and entanglement-- to perform complex calculations on quantum information stored in quantum bits, or qubits.
Robotics
Terms related to robotics, including definitions about consumer or manufacturing robots and words and phrases about stepper motor systems, XY positioning tables, automation and artificial intelligence.
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What is the artificial intelligence of things (AIoT)?
The artificial intelligence of things (AIoT) is the combination of AI technologies and the internet of things (IoT) infrastructure.
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What is the Fourth Industrial Revolution?
The Fourth Industrial Revolution (4IR) is the ongoing transformation of how people live, work and relate to one another through the fusion of technologies that blur the lines between the physical, digital and biological spheres.
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What is VR locomotion (virtual reality locomotion)?
VR locomotion refers to the techniques and technologies that allow users to move within a virtual reality (VR) environment.