6 events with tag "portable"
100 BC
ID: 4454
Romans develop portable hand abacus - bronze tablet with grooves and counters for merchants and engineers
ID: 4454
1902
ID: 4472
Dalton Adding Machine Company founded - produces first truly portable 10-key adding machines
ID: 4472
1919
ID: 4287
Underwood introduces first successful portable typewriter - weighs only 10 pounds
ID: 4287
1981
ID: 4347
April 1981
Adam Osborne introduces Osborne 1 - first commercial portable computer, weighs 24 pounds, $1,795
ID: 4347
1982
ID: 4351
November 1982
Compaq founded, creates first IBM PC compatible portable computer - reverse engineers BIOS legally
ID: 4351
1995
ID: 4447
May 1995
Sun Microsystems releases Java - 'write once, run anywhere' with JVM, becomes dominant enterprise language
ID: 4447