An acronym is an abbreviation of the first letters of a phrase or the long name of an organization that forms a word or conveys a message. In electronic communication or online documents, acronyms are used as writing shorthand or a method to communicate humor. Below, you will find an alphabetical listing for hundreds of computer related acronyms. 

[A][B][C][D][E][F][G][H][I][J][K][L][M][N][O][P][Q][R][S][T][U][V][W][XYZ]

[G]

GART - Graphics Address Remapping Table
GCC - GNU C Compiler
GDI - Graphics Device Interface
GDT - Global Description Table
GDTR - Global Description Table Register
GGP - Gateway to Gateway Protocol
GHA - Gigabit Highway Alliance
GID - Group IDentification
GIGO - Garbage In Garbage Out
GIMP - General Image Manipulation Program
GIS - Geographics Information System
GLB - Generic Logic Block
GLUT - Graphics Library Utility Toolkit
GMR - Giant MagnetoResistive
GMSK - Gaussian Minimum Shift Keying
GMT - Greenwich Mean Time
GNAT - GNU Ada Translator
GND - GrouND
GNU - GNU's Not Unix
GOP - Group Of Pictures
GPA - Graphics Port Accelerator
GPC - GNU Pascal Compiler
GPF - General Protection Fault
GPIB - General Purpose Interface Bus
GPL - General Public License
GPP - GNU C++ compiler
GPRS - General Packet Radio System
GPS - Global Positioning System
GPSS - General Purpose System Simulator
GPT - Graphics Performance Tool
GPU - Graphics Processing Unit
GRE - General Routing Encapsulation
GREP - Generalized Regular Expression Parser
GRP - Global Routing Pool
GSM - Global System for Mobile Communication
GTLB - Graphics Translation Look-aside Buffer
GTF - Generalized Timing Formula
GTL - Gunning Transceiver Logic
GTO - Gate Turn Off
GTP - GPRS Tunneling Protocol
GTS - GigaTexel Shading
GUI - Graphical User Interface
GUS - Gravis UltraSound