g4

G4 is a brand name used for several unrelated concepts, including media, technology, and international affairs. One prominent use is a United States video game–focused television network. Launched in 2002 as G4, it merged with TechTV in 2004 to form G4techTV and was later renamed G4 in 2006. The channel specialized in gaming culture, with live hosts, show formats, and game coverage. It ceased traditional broadcasting in 2014, with much of its content migrating to online platforms. A revival of the G4 brand as a streaming- and digital-focused service was launched in 2021, but the status of a permanent linear channel remained uncertain by the mid-2020s.

PowerPC G4 refers to a family of 32-bit microprocessors used in Apple’s Macintosh computers and other systems from the late 1990s through the mid-2000s. Introduced as part of the PowerPC line, the G4 featured the Velocity Engine for enhanced performance on multimedia tasks and often included the AltiVec vector processing unit. The G4 family, developed by Motorola and IBM, powered models such as the iBook G4 and Power Mac G4. Apple began transitioning to Intel processors in 2006, leading to the gradual phase-out of G4-based machines.

G-4, or Group of Four, is a designation for a collective of countries—Brazil, Germany, India, and Japan—that advocate for reform of the United Nations Security Council, including the addition of permanent seats. Formed in the mid-2000s, the G-4 seeks expanded permanent representation and a greater say in Security Council decisions, arguing that a more inclusive council better reflects global power dynamics. The group operates as a diplomatic forum rather than a formal treaty alliance.