Living Person
Xerox_Alto
is
As of April 15, 2026
53 years old
1 months!
Days Until Birthday
319 days
Days Since Birth
19,403 days
elapsed
Date of Birth
(March 1born, 1973 ) is
Thu
Day
Ox
Year
* Calculated from Wikipedia data.
Accuracy is not guaranteed.
Cosmic Age Calculator
Moon
710.2 years old
Mercury
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86.4 years old
Mars
28.2 years old
Jupiter
4.5 years old
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1.8 years old
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 Xerox Alto – exhibited at the Heinz Nixdorf MuseumsForum in Paderborn. | |
| Developer | Xerox PARC |
|---|---|
| Manufacturer | Xerox PARC |
| Released | March 1, 1973 |
| Introductory price | US$32,000 (equivalent to $140,000 in 2025) |
| Units shipped | Alto I: 120 Alto II: 2,000 |
| Media | 2.5 MB one-platter disk cartridge |
| Operating system | Alto Executive (Exec) |
| CPU | TTL-based, with the ALU built around four 74181 MSI chips. It has user programmable microcode, uses big-endian format and a CPU clock of 5.88 MHz. |
| Memory | 96 – 512 KB (128 KB for $4000) |
| Display | 606 × 808 pixels |
| Input | Keyboard, 3-button mouse, 5-key chorded keyboard |
| Connectivity | Ethernet |
| Successor | Xerox Star |
| Related | ETH Lilith; Lisa; Apollo/Domain |
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