modal30The Model 30 was a popular IBM mainframe which was announced in 1964 as the least powerful of the System360s. [NB 1] The System360 series was the first of computers in the worldBecause of the desn choices, the cabinets have become totally different than we are used to from the PM . Just like the SACD 30N, the Model 30 has a symmetrical desn with a kind