Term 61
High Definition
High Definition (HD) refers to a display resolution or video quality that is significantly higher than standard definition, typically starting at 1280x720 pixels (720p).
Acronym study
Terms 61–90 of 189 220-1101 acronyms and key terms. Each entry includes a plain-English definition and a link to the full 800-word glossary page with exam context and practice questions.
Term 61
High Definition (HD) refers to a display resolution or video quality that is significantly higher than standard definition, typically starting at 1280x720 pixels (720p).
Term 62
A standard cable and connector used to send high-quality video and audio from one device to another, like from a laptop to a monitor or TV.
Term 63
Hypertext Transfer Protocol (HTTP) is the foundational communication protocol used to transfer web pages and other data between a web browser and a web server over the internet.
Term 64
Hypertext Transfer Protocol Secure, or HTTPS, is the secure version of HTTP that encrypts data between a web browser and a website using SSL/TLS to protect sensitive information like passwords and credit card numbers.
Term 65
IIS is a Microsoft web server that hosts websites, web apps, and services using HTTP/HTTPS protocols on Windows servers.
Term 66
In-plane Switching (IPS) is a type of LCD screen technology that gives you wide viewing angles and accurate colors, making it ideal for professional work and exams that test display knowledge.
Term 67
Information Technology eXtended (ITX) is a family of small-form-factor motherboard specifications developed by VIA Technologies for compact and low-power computer systems.
Term 68
Infrared (IR) is a type of wireless communication that uses light waves just below visible red light to send data or control devices over short distances.
Term 69
Infrastructure as a Service (IaaS) is a cloud computing model that provides on-demand virtualized computing resources over the internet, such as virtual machines, storage, and networking, instead of owning and maintaining physical hardware.
Term 70
The International Organization for Standardization, or ISO, is an independent global body that creates and publishes voluntary standards to ensure quality, safety, and efficiency in products, services, and systems across many industries, including IT.
Term 71
Internet Mail Access Protocol (IMAP) is a standard email protocol that lets you read and manage emails stored on a mail server from multiple devices, keeping everything synchronized.
Term 72
Internet Protocol (IP) is the set of rules that governs how data is addressed, routed, and sent from one device to another across networks, including the internet.
Term 73
A company that provides individuals and organizations access to the internet, typically for a fee.
Term 74
IOPS measures how many input/output operations a storage device can perform per second, indicating its speed and responsiveness.
Term 75
A Keyboard-Video-Mouse (KVM) is a hardware device that allows you to control multiple computers using a single keyboard, monitor, and mouse.
Term 76
A light-emitting diode (LED) is a semiconductor device that emits light when an electric current passes through it, commonly used as an indicator or illumination source in electronic devices.
Term 77
A flat-panel display technology that uses liquid crystals manipulated by electric current to produce images, commonly used in monitors and laptop screens.
Term 78
A Local Area Network (LAN) connects computers and devices within a small physical area, such as a home, office, or school, allowing them to share resources like files, printers, and internet access.
Term 79
A local connector is a cable or port used to link a device like a computer to a nearby peripheral or network within the same immediate area.
Term 80
Long-Term Evolution (LTE) is a high-speed wireless communication standard for mobile phones and data terminals, often called 4G LTE.
Term 81
A Mail Exchange record is a type of DNS record that specifies which mail server is responsible for receiving email messages on behalf of a domain.
Term 82
A cybersecurity service that continuously monitors an organization's network and systems to detect threats and respond to them quickly.
Term 83
MBR is a 512-byte boot sector that stores partition table and boot code, enabling a computer to load an operating system.
Term 84
Media Access Control (MAC) is a sublayer of the Data Link Layer in networking that controls how devices on the same network share access to the physical medium and uniquely identifies each device with a hardware address.
Term 85
A Metropolitan Area Network (MAN) is a network that connects multiple locations across a city or large campus, providing high-speed communication like a single large network.
Term 86
Mini-Serial Advanced Technology Attachment (mSATA) is a compact form factor of the SATA interface used to connect solid-state drives to a computer’s motherboard, commonly found in laptops and small form-factor devices.
Term 87
MMC is a Windows framework that hosts administrative tools called snap-ins for managing hardware, software, and network components.
Term 88
Mobile device management (MDM) is a security solution that allows IT administrators to enroll, configure, monitor, and enforce policies on smartphones, tablets, and other mobile devices used in an organization.
Term 89
Multifactor Authentication (MFA) is a security method that requires you to provide two or more pieces of evidence to prove your identity before accessing an account or system.
Term 90
A multifunction printer is a single device that combines printing, scanning, copying, and sometimes faxing into one machine.