The IBM 3330 Direct Access Storage Facility, code-named Merlin, was introduced in June 1970 for use with the IBM System/370 and the IBM System 360/195. The original announcement …

The IBM 3330 Direct Access Storage Facility, code-named Merlin, was introduced in June 1970 for use with the IBM System/370. Its removable disk packs held 100 MB (404 tracks/surface x …

In 1969, IBM charged San Jose project manager Kenneth E. Haughton with developing a “direct access storage facility” that matched the performance of the high-end IBM 3330 system at a …

The controller employed IBM’s first floppy disk drive to load microcode. The 3330 system incorporated technical advances that contributed to a quadrupling of practical storage density.

Beginning with its 1964 System/360 announcement, IBM's mainframes initially accessed count key data (CKD) subsystems via a channel connected to separate Storage Control Units …

IBM needed a larger capacity disk drive than the ones they had in the past. They had already moved to 14" disk drives early in the 1960s and, when the System 360 was coming out in the …

IBM 3333 Models 1 and 11 The 3333 Models 1 and 11 contain two disk drives and provide an in- terface to the controlling units which are 3830 Model 2, 3145, 3158, 3168 with integrated sto- …

Johnson joined IBM in 1963 in San Jose, California, where he worked for seven years. At IBM, he focused on analog circuit design and servo circuitry. [5]: 2 His final project at the company …

James Porter (JP): We’re here today to talk about two products introduced by IBM in the 1970s, starting with the 3340 disk drive and the 3348 data module, a sample of which you see on the …

Jul 24, 2018 · At 384 tracks per inch for the 3330-11 version, vertical alignment of 20 surfaces became more challenging for interchangeable removable disks, and subsequent development …