The LGP-30 was a small scientific and business computer. Introduced in 1956, it used vacuum tube and diode logic and featured 4096 words of drum based memory, and a Friden Flexowriter for input and output. (There was also an optional high-speed paper-tape reader and punch.) The later LGP-21 used transistor logic and a disk memory but was about three times slower.
LGP-30
|
LGP-21 (courtesy of Tom Jennings)
|
| Option |
Description |
Capacity |
| CPU and memory |
LGP-30 |
4KW |
|
LGP-21 |
4KW |
| Console |
Friden Flexowriter |
|
| Paper tape |
High speed reader |
|
|
High speed punch |
|