Glossary terms beginning with H

H.263

A video codec standard originally designed as a low-bitrate compressed format for videoconferencing It has been widely adopted as the standard for video streaming over mobile networks Standard...

Half-QWERTY keyboard layout

A keyboard layout similar to QWERTY but having two letters per key The basic arrangement is the same however the keyboard is narrower which makes it suitable for use with one hand and it fits more...

Handheld

Handheld refers to a portable device such as a mobile phone, notebook computer or PDA that is usually operated whilst being held in the hand.

Handoff

Also known as: Handover Handover (or, in North America, handoff) occurs in both digital and analogue mobile networks when a mobile station (mobile phone or PDA) with an active data or voice call moves between cells….

Handover

Also known as: Handoff Handover (or, in North America, handoff) occurs in both digital and analogue mobile networks when a mobile station (mobile phone or PDA) with an active data or voice call moves between cells….

Hands free

Also known as: Handsfree Handsfree (ot hands-free) is the term used to describe the method of operating a device, such as a mobile phone, PDA or notebook (that is normally handheld), without holding or touching the…

Handset

Handset is the name given to the physical terminal that a user handles or holds when making or receiving a telephone call. The term may be applied to a wide range of handheld wireless devices, such…

Handsfree

Also known as: Hands-free Handsfree (ot hands-free) is the term used to describe the method of operating a device, such as a mobile phone, PDA or notebook (that is normally handheld), without holding or touching the…

Handwriting recognition

The ability of a device or software program to analyze the shape of cursive or printed handwriting drawn on a touchscreen and then translate it into letters words numbers and punctuation marks...

Haptic feedback

Haptic feedback is a technology that communicates with the user through movement, vibration or through the use of force. Haptic feedback is mainly applied at mobile phones that are equipped with a touchscreen that replaces…

Haptics

A category of technology that provides physical feedback when the user interacts with virtual things This could be pressing a button on a touch screen or feeling the rough edge of the road in a...

Headset

Headset is a mobile phone accessory that allows the phone to be used for hands-free conversations. The headset usually consists of two earpieces and a microphone, and it plugs into a socket in the handset. The…

hertz

Also known as: hZ, cps, cycles per second Hertz (Hz) is the basic unit of frequency, one Herz being equal to one cycle per second (cps). As the Herz is usually too small a measure for…

HLR

Also known as: Home Location Register HLR (Home Location Register) is a central master database within the GSM network, which maintains a permanent store of subscriber information, and some location information for the mobile network. The…

Home Location Register

Also known as: HLR HLR (Home Location Register) is a central master database within the GSM network, which maintains a permanent store of subscriber information, and some location information for the mobile network. The HLR provides…

Hot Spot

An area where users can access Wi-Fi services to access the Internet if they have the appropriate device Hot spots vary in area of coverage They are usually public and many charge users by the day...

Hot Swap

Inserting or removing an external peripheral device such as flash memory or hard drive from a host a mobile phone or desktop computer while the host is still operating Hot swappable refers to...

HSCSD

HSCSD is the abbreviation of High Speed Circuit Switched Data. This technique is especially popular in Germany. In Germany HSCSD is called Mobile ISDN and has remote access as the main application; the entrance to…

HSDPA

High-Speed Downlink Packet Access (HSDPA) is a 3G (third generation) mobile telephony communications protocol in the High-Speed Packet Access (HSPA) family, which allows networks based on Universal Mobile Telecommunications System (UMTS) to have higher data…

HSDPA+

An upgrade for UMTS networks that doubles network capacity and increases download data speeds by five times or more The service was initially deployed at 1 8 Mbps but upgrades to the networks and...

HSP

A Bluetooth profile that enables wireless connection between a phone and a Bluetooth headset It supports simultaneous two-way audio but not stereo It is one of the most common profiles with only a...

HSUPA

High-Speed Uplink Packet Access (HSUPA) is a 3G mobile telephony protocol in the HSPA family with up-link speeds up to 5.76 Mbit / s. The name HSUPA was created by Nokia. The 3GPP does not…

HTML

A standard markup language used to create web pages It was designed with desktop computers in mind and web pages may have reduced usability when viewed on devices with smaller screens and limited...

HTTP

Also known as: HyperText Transport Protocol HTTP (HyperText Transfer Protocol) is the protocol that powers the World Wide Web. It specifies a standard for communication between clients (called user agents in the standard) and servers, and…

HyperText Transport Protocol

Also known as: HTTP HTTP (HyperText Transfer Protocol) is the protocol that powers the World Wide Web. It specifies a standard for communication between clients (called user agents in the standard) and servers, and was originally…

hZ

Also known as: hertz, cps, cycles per second Hertz (Hz) is the basic unit of frequency, one Herz being equal to one cycle per second (cps). As the Herz is usually too small a measure for…