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

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Hyper-V

A virtualization product from Microsoft that allows the creation of virtualized computing environments.

You will find this term commonly used in Virtualization

Hyperlink

A reference to data that the reader can directly follow either by clicking or by hovering. It points to a whole document or to a specific element within a document.

You will find this term commonly used in Web Development

Hyperlink Spoofing

A form of fraud where a link presented to a user is misleading, directing the user to an unintended and possibly malicious website.

You will find this term commonly used in Security, Web Development

Hypermedia

An extension of the term hypertext, hypermedia is a nonlinear medium of information that includes graphics, audio, video, plain text, and hyperlinks.

You will find this term commonly used in Web Development, Multimedia

Hypermedia API

An API that uses hypermedia (links) as part of the application's interface, allowing clients to dynamically navigate the actions available to them.

You will find this term commonly used in Web Development, APIs

Hyperscale Computing

The ability of an architecture to scale appropriately as increased demand is added to the system. This involves not just the ability to scale up, but to scale efficiently.

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

Hyperscale Data Center

A type of data center architecture designed to scale for massive computing power and efficiency in the face of exponential data growth.

You will find this term commonly used in Cloud Computing, Data Center Management

Hyperscale Network Architecture

A design methodology for networks that can scale exponentially and swiftly to meet demand in hyperscale data centers or cloud environments.

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

Hyperspace

In computing, often refers to an abstraction of storage or computing resources, implying a vast or virtually infinite space.

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

Hypertext

Text displayed on a computer or other electronic device with references (hyperlinks) to other text that the reader can immediately access.

You will find this term commonly used in Web Development

Hypertext Application

A web application that uses HTML and other web technologies to create interactive or dynamic web pages.

You will find this term commonly used in Web Development

Hypertext Preprocessor (PHP)

A popular general-purpose scripting language that is especially suited to web development. It is fast, flexible, and pragmatic, powering everything from your blog to the most popular websites in the world.

You will find this term commonly used in Web Development

Hypertext System

A system used for storing and retrieving text in which certain words or phrases are hyperlinked to other texts within the system.

You will find this term commonly used in Web Development

Hypertext Transfer Protocol Secure (HTTPS)

An extension of HTTP that is used for secure communication over a computer network, widely used on the Internet.

You will find this term commonly used in Networking, Security

Hyperthreading Technology

A form of simultaneous multithreading technology introduced by Intel, allowing a single microprocessor to act as if it were two separate processors to the operating system and the application programs.

You will find this term commonly used in Hardware, Computing

Hypervisor

Software, firmware, or hardware that creates and runs virtual machines (VMs) by separating the physical hardware from the operating system.

You will find this term commonly used in Virtualization

Hypervisor Network

A virtualized network overlay that operates under the control of a hypervisor, allowing virtual machines to communicate.

You will find this term commonly used in Virtualization, Networking

Hypervisor Network Security

Security measures and protocols implemented at the hypervisor level to protect virtual machines and their host systems from network-based threats.

You will find this term commonly used in Security, Virtualization

Hypervisor Type 1

A software layer that runs directly on bare metal as a lightweight operating system to control hardware and to monitor guest operating systems.

You will find this term commonly used in Virtualization

Hypervisor Type 2

A software layer that runs within a conventional operating-system environment, allowing it to host guest operating systems.

You will find this term commonly used in Virtualization

Hypervisor-Level Attack

A cyberattack targeting the hypervisor of virtualized environments, aiming to exploit vulnerabilities and gain control over the host system or virtual machines.

You will find this term commonly used in Security, Virtualization

Hz (Hertz)

The unit of frequency in the International System of Units (SI) that is defined as one cycle per second. It is used to measure the clock speeds of computers and the frequency of other electronic components.

You will find this term commonly used in Hardware, Computing

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