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 is a network node?
A network node is a connection point in a communications network.
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What is a farad (F)?
A farad (F) is the standard unit of electrical capacitance (C) in the International System of Units. It indicates the ability of a substance to hold an electrical charge.
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What is modulation?
Modulation is the process of converting data into radio waves by adding information to an electronic or optical carrier signal.
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 pharming?
Pharming is a scamming practice in which malicious code is installed on a PC or server, misdirecting users to fraudulent websites without their knowledge or consent.
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What are social media metrics?
Social media metrics are the various data points that can help a company gauge the impact of social media activity on its revenue.
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What is a certificate authority (CA)?
A certificate authority (CA) is a trusted entity that issues digital certificates to authenticate content sent from web servers.
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 Clinical Document Architecture (CDA)?
Clinical Document Architecture (CDA) is a popular, flexible markup standard developed by Health Level Seven International (HL7). CDA defines the structure of certain medical records, such as discharge summaries and progress notes, as a way to better exchange this information between providers and patients.
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What is RAID (redundant array of independent disks)?
RAID (redundant array of independent disks) is a way of storing the same data in different places on multiple hard disks or solid-state drives (SSDs) to protect data in the case of a drive failure.
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What is ICT (information and communications technology)?
ICT (information and communications technology) is the infrastructure and components that enable modern computing.
Microprocessors
Terms related to microprocessors, including definitions about silicon chips and words and phrases about computer processors.
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What is a word in computing architecture?
In computing architecture, a word is a fixed unit of data containing a specific number of bits that can be addressed and moved between storage and the computer processor.
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What is a motherboard?
A motherboard is the main printed circuit board (PCB) in a computer.
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What is a complementary metal-oxide semiconductor (CMOS)?
A complementary metal-oxide semiconductor (CMOS) is the semiconductor technology used in most of today's integrated circuits (ICs), also known as chips or microchips.
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 a robo-advisor? Everything to know before using one
A robo-advisor is a virtual financial advisor powered by artificial intelligence (AI) that employs an algorithm to deliver an automated selection of financial advisory services.
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What is quantum superposition?
Quantum superposition is the ability of a quantum system to act as if it is in multiple states at the same time until it is measured.
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What is quantum theory?
Quantum theory, or quantum mechanics, is the theoretical basis of modern physics that explains the nature and behavior of matter and energy on the subatomic level.