Category: Disambiguation Ernst Mach Ernst Mach (February 18, 1838 – February 19, 1916) was an Austrian-Czech physicist and philosopher and is the namesake for the Mach number and the optical illusion known as Mach bands. ... Mach number (Ma) (pronounced as mack in International English or mock in the American English) is defined as a ratio of speed to the speed of sound in the medium in case. ... Inertial mass is a measure of the resistance of an entity to a change in its velocity relative to an inertial frame. ... GNU Mach, an implementation of the Mach microkernel, is the default microkernel in the GNU Hurd kernel of the GNU operating system. ... GNU Hurd logo The GNU Hurd is a computer program. ... Mach is an operating system kernel developed at Carnegie-Mellon University to support operating system research, primarily distributed and parallel computation. ... A Mach band is an optical illusion, named after Ernst Mach. ... The Mach Go (Known outside Japan as the Mach Five) is the racing car Speed Racer drives in the anime series of the same name. ... Speed Racer and his Mach Five. ... // History Main article: History of computer and video games The first primitive computer and video games were developed in the 1950s and 1960s and ran on platforms such as oscilloscopes, university mainframes and EDSAC computers. ...