Osborne 1 <computer> A {portable computer} that weighed 11 kg and cost $1795, produced by {Osborne Computer Corporation} in 1981. The Osborne 1 came with a five-inch screen, {modem} port, two 5 1/4 {floppy drives} and a {battery pack}. It came with the {CP/M} {operating system}, {SuperCalc} {spreadsheet} application, {WordStar}, {word processing} application, {Microsoft} {MBASIC} programming language and {Digital Research} {CBASIC} programming language. (http://oldcomputers.net/osborne.html) (2007-05-21)