A geographic information system (GIS) is a computer system designed to capture, store, manipulate, analyze, manage, and present all types of geographical data.

Git is a free, open source distributed revision control and source code management (SCM) system with an emphasis on speed. Every Git working directory is a full-fledged repository with complete history and full version tracking capabilities, not dependent on network access or a central server.

GitHub is a web based Git repository hosting service that offers distributed revision control and source code management in addition to its own features. Github has a rich graphical user interface unlike Git which is a command line tool. Using GitHub, developers can collaborate and maintain wikis, task management, bug tracking and feature requests for every project.

Glimpse is an open source web diagnostics platform which inspects web requests as they happen, providing insights and tooling to the reduce debugging time and empower every developers in improving their web applications.

A method of preventing redundant data when backing up data to multiple deduplication devices. When data is sent from one node to another, the second node recognizes that the first node already has a copy of the data, and does not make an additional copy.

In Windows 95, a file with a ".gid" suffix is a global index file. The files hold information about a help file, and stores them as hidden files in the same directory as the help files. 

The developing communications framework intended to eventually connect all telecommunications and computer networks world-wide. 

A digital mobile telephony system that is widely used in Europe and other parts of the world. GSM uses a variation of time division multiple access (TDMA) and is the most widely used of the three digital wireless telephony technologies. 

A term used by Microsoft for a number that its programming generates to create a unique identity for an entity such as a Word document. GUIDs are widely used in Microsoft products to identify interfaces, replica sets, records, and other objects. 

A free, advertising-supported email service provided by Google. Users may access Gmail as secure webmail, as well as via POP3 or IMAP4 protocols

A freely available open source application for creating and manipulating graphic images that runs on Linux, other Unix-based operating systems, and also on Windows and Mac OS X. GIMP is distributed under licensing terms defined by the GNU project. 

The GNU Linux project was created for the development of a Unix-like operating system that comes with source code that can be copied, modified, and redistributed. 

A GUI and set of computer desktop applicationfor users of any UNIX-based operating system. It's intended to make a UNIX-based operating system easy to use for non-programmers.

Go is an open source programming language initially developed by Google to build simple, reliable and efficient software. It is a statically-typed language with syntax loosely derived from that of C, adding garbage collection, type safety, some dynamic-typing capabilities, additional built-in types such as variable-length arrays and key-value maps, and a large standard library.

In football (soccer), goal-line technology (aka Goal Decision System)is a method used to determine when the ball has completely crossed the goal line with the assistance of electronic devices and at the same time assisting the referee in calling a goal or not. The objective of goal-line technology (GLT) is not to replace the role of the officials, but rather to support them in their decision-making.

Godot is a 2D and 3D cross-platform open source MIT licensed game engine developed by OKAM Studio. The engine works on Windows, OS X and Linux, 32 and 64 bits, designed to target PC, console, mobile and web platforms. Godot uses a different approach to make games based on nested scenes a unique and modern architecture that make organizing small and large projects for developers and teams more efficient.