Glossary of Terms
This glossary of terms contains definitions of commonly used terms on Intel Customer Support.
1U, 2U, 3U, etc. - A rack unit is typically abbreviated to “U” and is a measurement defined as 1-3/4 inches. The height of server equipment is expressed in multiples of rack units. For example, a 2U is 3-1/2” high.
2D/3D Hardware acceleration - The process where the graphics controller computes tasks usually done by the CPU. The process results in lower power consumption, longer battery life, and provides a smoother playback of complex content and CPU headroom for multitasking.
3D XPoint™ Memory Technology - An entirely new class of non-volatile memory that can help turn immense amounts of data into valuable information in real time. With up to 1,000 times lower latency and exponentially greater endurance than NAND, 3D XPoint technology can deliver game-changing performance for big data applications. Its ability to enable high-speed, high-capacity data storage close to the processor creates new possibilities for system architects and promises to enable entirely new applications.
802.11 - A set of standards for communicating with computers that are part of a wireless LAN. You may see IEEE in front of 802.11. This stands for the Institute of Electrical and Electronic Engineers. Standards are 802.11a, 802.11b, 802.11g, and 802.11n.
AA# - Altered assembly number (AA#) is the part number for a motherboard and all its attached components.
BIOS - Basic Input/Output System (BIOS) is the firmware for a computer. Its main function is to identify and initialize various motherboard components. It also loads and transfers control to a small program that then loads the operating system.
Cache - A temporary storage area for frequently accessed data.
DCB - Intel® Data Center Blocks (Intel® DCB) are unbranded, fully validated server building blocks featuring Intel's latest technologies. They are designed to target the needs of specific segments, such as Intel® Data Center Blocks for HPC, Intel® Data Center Blocks for Cloud, and Intel® Data Center Blocks for Business.
EAP - Extensible Authentication Protocol (EAP) is an authentication framework. It is often used in wireless networks and defines message formats. EAP sits inside of Point-to-Point Protocol's (PPP) authentication protocol and provides a generalized framework for several different authentication methods. EAP is supposed to head off proprietary authentication systems and let everything from passwords to challenge-response tokens and public-key infrastructure certificates all work smoothly.
Fan-heatsink - This solution incorporates active (fan) and passive (heatsink) cooling components. The heatsink provides absorption for the heat and the fan provides the airflow necessary to remove the heat from the processor.
Gateway - A wireless gateway is a special type of access point that allows wireless network clients to share an Internet connection (DSL or cable modem). Wireless gateways typically include features such as NAT and VPN support, which you may not find in simple access points.
Hard drive cache - A temporary storage area on a hard drive.
I/O Shield - Input/Output (I/O) Shield is a plate used to cover an opening in the back of a computer.
Jack retasking - The technology that allows audio jack functionality to be reassigned depending on the type of device that is connected.
KB - A unit of memory storage that is equal to 1,024 bytes.
L1 cache - The smallest and fastest level of CPU cache and the first level of cache used by the CPU.
M.2 SSD - M.2, formerly known as the Next Generation Form Factor (NGFF), is a specification for internally mounted computer expansion cards and associated connectors. It replaces the mSATA standard, which uses the physical PCI Express Mini Card layout and connectors.
NAND Flash - A non-volatile computer storage.
ODD - Optical disk drive (ODD).
Parallel ATA - An IDE standard for connecting storage devices like hard drives and optical drives to the motherboard.
Quad-core - A processor that combines four independent cores in a single package.
RAID - Redundant array of independent disks (RAID) is a technology that uses multiple hard drives to improve performance and/or protection.
SATA - Serial ATA (SATA), a successor to ATA. The interface between storage devices (hard drives, optical drives, SSDs) and a computer is a high-speed serial cable.
TAC - Thermally Advantaged Chassis (TAC).
UHCI - Universal Host Controller Interface (UHCI) allows USB 1.0 controller to communicate with the operating system.
VBIOS - Video BIOS.
WAN - Wide area network (WAN) is a computer network that covers a large geographic area such as a country.
x86 - An instruction set for one of the most common CPU architectures.