Cruising on Wikipedia I came across the first portable computer aka a wannabe laptop, the Osborne 1. Its intial cost was US $1795.00 and it came with US $1500.00 in software. It ran the CP/M 2.2 Operating System, It had no onboard battery so you had to plug it in wherever you went. The display was a 5 inch screen and use of single sided, single density floppies x 4.  Excerpts from the article:   History [ edit ] The Osborne 1 was developed by  Adam Osborne  a...