IT Glossary - ITU Online IT Training
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IT Glossary
Key Terms To Know In The IT Industry

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Vector Quantization

A quantization technique used in signal processing and telecommunications that approximates the density of sample points.

You will find this term commonly used in AI, Machine Learning

Vector Space Model

A mathematical model for representing text documents as vectors of identifiers, used in information filtering, information retrieval, indexing, and relevancy rankings.

You will find this term commonly used in AI, Data Science

Vectorization

The process of converting an algorithm from operating on a single value at a time to operating on a set of values at one time.

You will find this term commonly used in Software Development, Performance Optimization

Veeam Certified Engineer (VMCE)

Demonstrates expertise in Veeamâs products, focusing on backup, recovery, and data management solutions.

You will find this term commonly used in Data Management, Backup and Recovery

Vendor Lock-in

A situation in which a customer becomes dependent on a vendor for products and services, unable to use another vendor without substantial switching costs.

You will find this term commonly used in General IT, Business Strategy

Verilog

A hardware description language used to model electronic systems.

You will find this term commonly used in Software Development, Hardware Development

Version Control

Version control, also known as source control or revision control, is the management of changes to documents, code, or any other collection of information, enabling tracking, collaboration, and coordination among multiple contributors.

You will find this term commonly used in Software Development, Collaboration, Versioning

Version Control System

Software tools used to track changes to source code and other files, allowing multiple developers to collaborate efficiently.

You will find this term commonly used in General IT

Version History

A chronological record of changes made to a document, file, or software project, typically maintained by version control systems.

You will find this term commonly used in General IT

Version Rollback

The process of reverting software or a system to a previous version to undo changes that caused issues.

You will find this term commonly used in Software Development, IT Operations

Version Snapshot

A captured state of a software application or system at a specific point in time, often used for backup or version control purposes.

You will find this term commonly used in Software Development, IT Operations

Versioning

The process of assigning unique identifiers to different versions of software or documents to track changes and facilitate collaboration.

You will find this term commonly used in General IT

Vertex Shader

A programmable shader stage in the rendering pipeline that processes vertex data.

You will find this term commonly used in Software Development, Graphic Design

Vertical Market Software

Software tailored to fit the needs of a specific industry or vertical market, as opposed to software that is suitable for a wide range of industries.

You will find this term commonly used in Software Development, Business Strategy

Vertical Scaling

Adding more resources to a single node in a system, such as CPU or memory, to improve performance.

You will find this term commonly used in Networking, Cloud Computing

Vertical Synchronization (V-Sync)

A display option that prevents screen tearing by synchronizing the frame rate of the game with the monitor refresh rate.

You will find this term commonly used in Graphic Design, Game Development

Vex Robotics

A platform for educational robotics, providing kits and competitions to help students learn STEM concepts.

You will find this term commonly used in General IT, Education

VHDL (VHSIC Hardware Description Language)

A hardware description language used in electronic design automation to describe digital and mixed-signal systems such as field-programmable gate arrays and integrated circuits.

You will find this term commonly used in Software Development, Hardware Development

VHDL Simulation

The process of using software tools to simulate the behavior of VHDL designs before they are physically built.

You will find this term commonly used in Hardware Design

Video Analytics

The process of analyzing video data to extract meaningful information, such as detecting objects, tracking movement, or recognizing patterns.

You will find this term commonly used in AI

Video Codec

Software or hardware algorithms used to compress and decompress digital video streams.

You will find this term commonly used in General IT

Video Compression

The process of reducing the size of a video file to make it easier to store, transmit, or stream over a network.

You will find this term commonly used in Networking

Video Conferencing

Video Conferencing is a technology that allows users in different locations to hold face-to-face meetings, presentations, or discussions over the internet using video and audio communication. It enhances collaboration and reduces the need for travel.

You will find this term commonly used in Collaboration Tools, Networking, General IT

Video Conferencing Software

Applications and platforms that enable users to conduct virtual meetings, presentations, or webinars through video communication.

You will find this term commonly used in Networking

Video Conferencing System

Software or hardware solutions that enable multiple users to conduct real-time video meetings over a network.

You will find this term commonly used in Networking

Video Content Management System (VCMS)

Software used to organize, manage, and deliver video content over digital channels, such as websites or streaming platforms.

You will find this term commonly used in Networking

Video Editing Software

Applications used to manipulate and arrange video clips to create professional-looking videos or films.

You will find this term commonly used in General IT

Video Management Software (VMS)

Software used to manage and control video surveillance systems, including recording, storage, and retrieval of video footage.

You will find this term commonly used in Security

Video On Demand (VOD)

A service that allows users to select and watch video content whenever they choose, rather than at a scheduled broadcast time.

You will find this term commonly used in Networking

Video Processing Unit (VPU)

A specialized processor designed to accelerate the processing of video data, commonly used in graphics cards and AI applications.

You will find this term commonly used in General IT

Video Streaming

Video Streaming is the process of delivering multimedia content, such as video and audio, over the internet in a continuous stream, allowing users to watch or listen to the content in real-time without downloading the entire file first.

You will find this term commonly used in Networking, Multimedia, General IT

Video Streaming Service

Online platforms that deliver video content to users over the internet, typically on-demand or live-streamed.

You will find this term commonly used in Networking

Video Surveillance

The use of video cameras to monitor and record activities in specific areas for security purposes.

You will find this term commonly used in Security

Video Surveillance System

A network of video cameras and recording devices used to monitor and record activities in specific areas for security or surveillance purposes.

You will find this term commonly used in Security

Video Transcoding

The process of converting video files from one format, resolution, or bitrate to another, typically to optimize playback on different devices or networks.

You will find this term commonly used in Networking

View State

In web development, a method to preserve page and control values between postbacks.

You will find this term commonly used in Web Development

Viewport

In computer graphics, a viewport is the region of a display device or software window where visual content is shown.

You will find this term commonly used in General IT, Graphic Design

Virtual Address Space

The space in which a process maps its addresses. Physical memory (RAM) is mapped into virtual address space by the operating system.

You will find this term commonly used in General IT, Operating Systems

Virtual AGC (Apollo Guidance Computer)

An emulation of the computer used by the NASA Apollo missions.

You will find this term commonly used in Software Development, Historical Computing

Virtual Appliance

A pre-configured virtual machine image, ready to run on a hypervisor; it is designed to simplify software delivery and operation.

You will find this term commonly used in Cloud Computing, General IT

Virtual Application Network

A concept in network management that abstracts applications from the underlying network, facilitating easier deployment and management.

You will find this term commonly used in Networking

Virtual Assistant

A Virtual Assistant is an AI-powered software agent that can perform tasks or services for an individual based on voice commands or inputs. It can provide information, schedule appointments, make recommendations, and perform various other tasks.

You will find this term commonly used in AI, Natural Language Processing, General IT

Virtual Assistant Device

Hardware devices equipped with virtual assistant software, such as smart speakers or smart displays.

You will find this term commonly used in AI

Virtual Assistant Platform

A software platform that provides tools and services for developing and deploying virtual assistant applications.

You will find this term commonly used in AI

Virtual Backbone

A network infrastructure that appears to the user as a single, unified system but is actually composed of multiple networks or segments.

You will find this term commonly used in Networking

Virtual Base Class

In object-oriented programming, a class designed to be inherited but not instantiated.

You will find this term commonly used in Software Development

Virtual Build Environment (VBE)

An environment used in software development that allows developers to compile and test software in a virtual space that mimics the production environment.

You will find this term commonly used in Software Development

Virtual Circuit

A logical connection created within a network between two network devices.

You will find this term commonly used in Networking

Virtual Circuit Multiplexing

A technology that combines multiple virtual circuit communications onto a single physical link.

You will find this term commonly used in Networking

Virtual Collaboration

The use of digital platforms and tools to enable individuals to work together despite being geographically dispersed.

You will find this term commonly used in Business Strategy, Communication

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