________ are specially designed computers that perform complex calculations extremely rapidly.
Supercomputers are specially designed computers that perform complex calculations extremely rapidly.
A supercomputer is a computer with a high level of performance compared to a general-purpose computer. Performance of a supercomputer is measured in floating-point operations per second (FLOPS) instead of million instructions per second (MIPS). As of 2017, there are supercomputers which can perform up to nearly a hundred quadrillion FLOPS. As of November 2017, all of the world's fastest 500 supercomputers run Linux-based operating systems. Additional research is being conducted in China, the United States, the European Union, Taiwan and Japan to build even faster, more powerful and more technologically superior exascale supercomputers.
The IBM Blue Gene supercomputer uses the CNK operating system on the compute nodes, but uses a modified Linux-based kernel called I/O Node Kernel (INK) on the I/O nodes. CNK is a lightweight kernel that runs on each node and supports a single application running for a single user on that node.
A network operating system (NOS) is a computer operating system that is designed for network use. ... In particular, UNIX was designed from the beginning to support networking, and all of its descendants (i.e., Unix-like operating systems) including Linux and Mac OSX, feature built-in networking support.