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The HP 7935 is a business computer hard disc drive system manufactured by Hewlett Packard.It was produced by the Disc Memory Division [1] in Boise, Idaho USA beginning in 1982 [2] at a cost of about $27,000. [3]
IBM's first hard drive, the IBM 350, used a stack of fifty 24-inch platters and was of a size comparable to two large refrigerators. In 1962, IBM introduced its model 1311 disk, which used six 14-inch (nominal size) platters in a removable pack and was roughly the size of a washing machine. This became a standard platter size and drive form ...
Finally, embedded in the 2C33 is an 8KB BIOS ROM. The Disk Cards used are double-sided, with a total capacity of 112 KB per disk. Many games span both sides of a disk and a few span multiple disks, requiring the user to switch at some point during gameplay. The Disk System is capable of running on six C-cell batteries or the supplied AC adapter ...
The 1541 was the standard floppy disk drive for the Commodore 64, with nearly all disk-based software programs released for the computer being distributed in the 1541 compatible floppy disk format. The 1541 was very slow in loading programs because of a poorly implemented serial bus , a legacy of the VIC-20 .
The SMD interface is based upon a definition of two flat interface cables ("A" control and "B" data) which run from the disk drive to a hard disk drive interface and then to a computer. This interface allows data to be transferred at 9.6 Mbit/s. The SMD interface was supported by many 8 inch and 14 inch removable and non-removable disk drives.
The Japanese version of the PAC can also run Arcade CD-ROM² discs through the use of an Arcade Card Duo. The retail price was US $600. It came with a LaserActive-branded version of NEC's Turbo Pad (CPD-N1/CPD-N10). An NEC branded version of the LD-ROM² PAC known as the PC Engine PAC (model PCE-LP1) was also released. Due to the unpopularity ...
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The M2351A "Eagle" (also known as the Eagle-1) was a Winchester-stye hard disk drive manufactured by Fujitsu with an SMD interface that was used on many servers in the mid-1980s. It offered an unformatted capacity of 474.2 MB [ 1 ] in 10 + 1 ⁄ 2 inches (270 mm) (6U) of 19-inch rack space, at a retail price of about US$10,000.