The Free On-line Dictionary of Computing (30 December 2018):

Osborne 1

    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)