The history of Unix dates back to the mid-1960s. when the Massachusetts Institute of Technology, AT&T Bell Labs, and General Electric were jointly developing an experimental time-sharing operating system called Multics for the GE-645 mainframe. Multics introduced many innovations, but also had many problems.Bell Labs, frustrated by the size and complexity of …

Unix time (also known as Epoch time, Posix time, seconds since the Epoch, or UNIX Epoch time) is a system for describing a point in time.It is the number of seconds that have elapsed since the Unix epoch, excluding leap seconds.The Unix epoch is 00:00:00 UTC on 1 January 1970 (an arbitrary date). Unix time is nonlinear with a leap second having the same Unix time as the …