IBM 1620 Simulator Configuration - parsa/simh GitHub Wiki
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 |