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The REUs came with software to use the extra memory as a RAM disk, but the RAM disk's compatibility with commercial software varied as some commercial software relied heavily on various quirks of the Commodore 1541 floppy drive. Additionally, many commercial programs simply overwrote the memory space occupied by the RAM disk software.
The Tandon Corporation was an American disk drive and PC manufacturer founded in 1975 (incorporated in 1976 as Tandon Magnetics Corp.) [1] by Sirjang Lal Tandon, a former mechanical engineer. [2] [3] The company originally produced magnetic recording read/write heads for the then-burgeoning floppy-drive market. Due to the labor-intensive nature ...
DVD-RAM appeared as a successor technology in April 1997, DVD-RAM adopts a cartridge similar to PD, and the 2.6 GB version 1.0 standard, which has just one side capacity equal to 4 times the PD, DVD - It was possible to read and write PD in the RAM drive. However, in the summer of 2000, compatibility with PD was not taken into consideration ...
Outside of BBS operators, few C64 owners took advantage of this arrangement and the accompanying IEEE devices that Commodore sold (such as the SFD-1001 1-megabyte 5 1 ⁄ 4 inch floppy disk drive, and the peripherals originally made for the IEEE equipped PET computers, such as the 4040 and 8050 drives and the 9060/9090 hard disk drives).
DVD-RAM (DVD Random Access Memory) is a DVD-based disc specification presented in 1996 by the DVD Forum, which specifies rewritable DVD-RAM media and the appropriate DVD writers. DVD-RAM media have been used in computers as well as camcorders and personal video recorders since 1998.
Like most other Commodore disk drives, these drives utilize zone bit recording to maintain an average bit density across the entire disk. Formatted capacity is approximately 0.5 megabyte per side, or 1 megabyte (1,066,496 bytes) in 4166 blocks total. [4] [5] [7] The 8050 is a single-sided drive, whereas the 8250 and SFD-1001 are double-sided ...
In 1964, Burroughs introduced the B-475 disk drive, with a head per track, as part of the B5500. Burroughs B-475 Disk Drive (circled) In 1970, IBM introduced the 2305 disk drive, with a head per track. In June it introduce the 3330 Direct Access Storage Facility, code-named Merlin. Its removable disk packs could hold 100 MB.
The best-known floppy disk drive for the C64, the 1541 is a single-sided 170-kilobyte drive for 5¼" disks. The 1541 directly followed the Commodore 1540 (meant for the VIC-20). The disk drive uses group coded recording (GCR) and contains a MOS Technology 6502 microprocessor, doubling as a disk controller and on-board disk operating system ...