Zetta- the 6th letter of the modern and classical Greek alphabet, denotes a value of seven (7) when used as a numeral. Examples: Zetta- Zetta is a decimal unit prefix in the metric system denoting a factor of 10 or . The prefix was added as an SI prefix to the International System of Units (SI) in 1991 and has the symbol Z. Zetta is evocative of the Latin numeral , meaning "seven". Therefore it was used to denote the seventh power of 1000. A prefix of the same value, "hepta", was informally introduced a few years before the promulgation of
EXA developed by Intel, using the Graphics Execution Manager. The Radeon free and open-source device driver supports 2D acceleration through EXA and Glamor. Glamor is supposed to obsolete all previous attempts. According to the X.Org web site "EXA" is an ""acceleration architecture with no well-defined acronym."" Dot.kde.org called it "Eyecandy Acceleration Architecture". The driver modification guide calls it "EXcellent Architecture or Ex-kaa aXeleration Architecture or whatever." EXA In computing, EXA is a graphics acceleration architecture of the X.Org Server (see also X Window System) designed to replace XAA (the XFree86 Acceleration Architecture) and to make the XRender extension more usable, with