| • Science | • People | • Locations | • Timeline |
| Model | Year |
|---|---|
| IBM Model A | 1949 |
| IBM Model B | 1954 |
| IBM Model C | 1959 |
| IBM Model D | 1967 |
Modified Standard versions of the A, B, and C models were commonly used as "console typewriters" or terminals on many early computers (e.g., JOHNNIAC, IBM 1620, PDP-1). Following the introduction of the IBM Selectric typewriter in 1961, which was much easier to interface to a computer, these typewriters were rarely used anymore as "console typewriters" or terminals.