petaflop

noun

1. Either of two units of measure of the calculating speed of a computer:

   “...a better machine is a petaflop machine. A petaflop is a quadrillion flops, a quadrillion floating-point operations per second, so a petaflop machine is a thousand times as fast as a teraflop machine, or a million times as fast as a Cray Y-MP8. The petaflop machine will exist by the year 2000, or soon afterward.”

2. Either of two units of measure of the calculating speed of a computer:

   “First computer to surpass the 1 Petaflop (2⁵⁰ FLOPS) barrier [in 2008]”