The world’s first portable computer was announced at the West Coast Computer Faire.
The portable computer was based on the Z80A CPU which ran at 4MHz, had 64K RAM and 4K ROM, a 5-inch display screen, two 5.25-inch floppy disk drives and a detachable, full-sized keyboard. The Osborne 1 went on sale for $1,795, the equivalent of an eye-watering $5,860 today. It had no battery, so it needed to be plugged into a power socket at all times.