The IBM 1620 was introduced in 1960 as a small-scale scientific computer. For many people, the 1620 was the first computer they ever used.
Photographs (courtesy of the Technology Museum of Thessaloniki):
Option |
Description |
Capacity |
CPU and memory |
IBM 1620, Model 1 or Model 2 |
20K - 60K digits |
CPU special features |
indirect addressing |
|
| edit instructions | ||
| automatic divide | ||
| modify address | ||
| Model 2 CPU features | ||
|
indexing |
|
| binary capability | ||
| floating point | ||
Console |
integrated typewritter |
|
| Paper tape | 1621 paper tape reader | |
| 1624 paper tape punch | ||
Cards |
1622 card reader/punch |
|
Line printer |
1443 line printer |
|
| Disk | 1311 disk pack, 4 drives | 2M characters |
Updated 08-Aug-2020 by Bob Supnik (simh AT groups DOT io - anti-spam encoded)
