The Osborne 1 was essentially first commercially successful portable microcomputer, which its public debut on April 3, 1981. Weighing in at 23.5-pounds, this “Personal Business Computer” cost $1,795 USD, used the CP/M 2.2 operating system, and was powered directly from a mains socket as it had no on-board battery. The computer shipped with a large bundle of software that was almost equivalent in value to the machine itself, a practice adopted by other CP/M computer vendors. Continue reading for more cool vintage computer ads. Click here to view the bonus ads.
18. Sony Hit-Bit
17. Ohio Scientific
16. Sharp Laptop
15. Atari
14. CompuServe Internet Service
13. Equinox 100
12. ProcessorTechnology Sol
11. C-64
10. Tandy Computers
9. Corvus Systems TRS-80
8. Packard Bell
7. PowerBook
6. Opus Floppy Disk
5. Telex Operator
4. WordStar
3. Univac File-Computer
2. Atari Home Computers
1. PowerPad
