G

GB: Gigabyte, a unit of data measurement equal to 1 billion bytes or 1 thousand megabytes (MB).  

GPA: The Graphics Performance Accelerator (GPA) card provides a dedicated display cache to the integrated graphics engine. The GPA card is a 32-bit 133 MHz 4 MB SDRAM array for enhanced integrated 3D and 3D graphics performance that is placed in the AGP slot.

GPRS: General Packet Radio Services. A faster system of communications than GSM which allows phones and computers to maintain an always-on connection for receiving emails or other internet information.  

3-D Graphics: 3-dimensional images can bog down the main processor so a video card with 4 or 8 MB of SGRAM (like the ATI Rage Pro) speeds these images up dramatically. These cards will allow you to experience 3-D games and view MPEG-2 encoded DVD-ROM movies at full speed.

GSM (Global System for Mobile communications): Global System for Mobile Communications. The mobile phone platform used in Europe and much of the rest of the world- though it is not mainstream in the USA. Dual band phones are capable of operating on other bandwidths abroad.

H

Hard drive: The main device for storage of data containing non-removable discs.  

HSCSD: High Speed Circuit Switched Data. This is a faster version of GSM. It allows for real-time video and audio streaming as well as faster data transfer to an from the web for wireless computing devices and mobile telephones.

HTML (HyperText Markup Language): The standard language for describing the contents and appearance of pages on the World Wide Web.