GEM - Graphics Environment Manager

GEMS - Greatest Electronic Mail System

GENIE - General Electric Network for Information Exchange

GENLOCK - Generator Lock

GEOS - Graphic Environment Operating System

GERT - Graphical Evaluation and Review Technique

GET - Get Execute Trigger

GFC - Generic Flow Control

GFI - General Format Identifier

GFOS - Get From Other Side

GGP - Gateway - Gateway Protocol

GI - Graphical Interface

GIF - Graphics Interchange Format

GIGO - Garbage In Garbage Out

GII - Global Information Infrastructure

GILS - Government Information Locator Service

GIPE - Generation of Interactive Programming Environment

GIS - Geographic Information System

GIS - Global Information Solutions

GIX - Global Internet Exchange

GKS - Graphical Kernel System

GL - Graphics Language

GLIS - Global Land Information System

GLM - General Linear Models

GLS - Global Learning Scheme