Kbps: KiloBits Per Second, a unit of bits that is moved per second. Commonly found used to describe the throughput of analog modems, ie; 56kbps
Kermit: This is a protocol for transferring files during direct dial-up communications that's named after a Muppet (seriously). Kermit is sound but old and can be very slow, slower than Xmodem, Ymodem, and much slower than Zmodem.
Khz: Kilo Hertz - Unit of measurement for 1000 x Frequency.
KVM Switch: Console switch - Controls and scans multiple CPU's from one set of keyboard, video display and mouse.