The IBM 353 device controller was hardware that attached to the IBM 305 RAMAC computer systems and operated in a combination of the 524/AUA, 260, 270 and IBM 380. The IBM 350 disk storage system had an external power supply (rather than being AC powered) and a generally identical controller but different disks and heads than were used on the IBM 353.
The IBM 350 disk storage unit was introduced in November of 1957 as a total system for the IBM 6208 and IBM 4020 computer systems. This was the first commercially available application of the IBM 350 disk storage. In the course of development of this development the IBM 353 disk storage system was used to build a prototype of the IBM 350 disk storage storage unit. A complete IBM 275 RAMAC computer system was built to demonstrate the viability of the IBM 350 disk storage unit.
The IBM 350 disk storage unit was a magnetic disk storage unit designed to store the operating system along with programs and data for the IBM 6208 or IBM 4020 computer system. It was shipped with the IBM 6208 which, in turn, can be considered a backup device for the IBM 7090. In a typical installation, the IBM 350 disk storage unit was installed as the primary storage device in the RAMAC unit. The drive itself was located in a cabinet which had its own power supply. The data bus and address bus for the IBM 350 disk storage unit was connected to the processor using the tape input/output interface.
The IBM 350 disk storage unit used a three-head head on a ganged manufacturing process to facilitate mass production. The IBM 350 disk storage used four platters that were mounted on the spin of a steel hub attached to a rotating spindle.
CorelDraw was discontinued in May 2014, when Corel released CorelDRAW Graphics Suite X6. This program includes CorelDraw (for creating and editing vector graphics), CorelDrawScript (for creating animation), CorelDRAW Photo-Paint (for print production), CorelDRAW Rhino (for vector editing and 3D design), CorelDRAW Inspire (for 2D design), CorelDRAW Essentials (for creating web graphics), CorelDRAW Touch (for touch-screen editing) d2c66b5586