Osborne — vintage systems

5 machines in the registry, 1981–1985.

• 1981 Osborne Computer Corp. Osborne 1
• 1983 Osborne Computer Corp. Executive
• 1983 Osborne Computer Corp. Executive II
• 1984 Osborne Computer Corp. Osborne 4 Vixen
• 1985 Osborne Computer Corp. Osborne 3 (Encore)