Definitions
1.noun(etc.) A set of keys used to operate a typewriter, computer etc.
2.nounA component of many instruments including the piano, organ, and harpsichord consisting of usually black and white keys that cause different tones to be produced when struck.
3.nounA device with keys of a musical keyboard, used to control electronic sound-producing devices which may be built into or separate from the keyboard device.
4.nounA unit of pressure equal to 1,000 bars (Symbol: kb)
5.nounA length of double-stranded DNA containing two thousand nucleotides, one thousand on each strand
6.nounA length of single-stranded RNA containing one thousand nucleotides
7.noun1000 bits (binary digits)
8.noun1024 (210) bits