SIR 1. (language) An early system on the IBM 650.
[Listed in CACM 2(5):16, May 1959]. 2. (standard) Serial Infrared. An infrared standard from IrDA, part of IrDA Data. SIR supports asynchronous communications at 9600 bps - 115.2 Kbps, at a distance of up to 1 metre. [Reference?] Last updated: 1999-10-14
