– The Osborne 1 (1981) was the first “portable” computer at 24lbs, costing $1,795 but had no onboard battery.
– Compaq Portable (1983) introduced IBM-compatible computing in a suitcase-sized PC weighing 28lbs for $2,995.
– IBM Portable PC 5155 (1984) added weight to the Compaq model, tipping scales at 30lbs with an amber screen.
– The Toshiba T3200 (1987) resembled a modern laptop and weighed lighter at “only”17.4 lbs w-desktop standards dual eras Progress