IBM System/360 Model 22
| Company type | Mainframe computer model |
|---|---|
| Industry | Computer hardware |
| Predecessor | IBM System/360 Model 30 |
| Founded | April 7, 1971 |
| Defunct | October 7, 1977 |
| Products | Mainframe computer |
The IBM System/360 Model 22 was part of the System/360 series of IBM mainframe computers.
History
Developed as a more economical alternative to the Model 30, the Model 22 aimed to reinforce IBM's entry-level mainframe offerings.
Following the discontinuation of the 360/30 on June 22, 1970, the Model 22 was introduced less than a year later and remained available from April 7, 1971, until October 7, 1977.
Comparisons
| Model | Introduction Year | Withdrawal Year | Scientific Throughput (kIPS) |
Commercial Throughput (kIPS) |
CPU Data Rate (MB/sec) |
Memory[NB 1] (model) |
|---|---|---|---|---|---|---|
| 22 | 1971 | 1977 | 10 | 28 | 1.3 | 24, 32 |
| 25 | 1968 | 1977 | 9.7 | 25 | 1.1 | 16, 24, 32, 48 |
| 30 | 1964 | 1970 | 10.2 | 29 | 1.3 | 8 (C30), 16 (D30), 24 (DC30), 32 (E30), 64 (F30) |
| 40 | 1964 | 1970 | 40 | 75 | 3.2 | 16 (D40), 32 (E40), 64 (F40), 128 (G40), 256 (H40) |
Models
The Model 22 was available in just two memory configurations: either 24K or 32K.[NB 2]
References
Cite error: <ref> tags exist for a group named "NB", but no corresponding <references group="NB"/> tag was found