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An affordable RAM Disk compatible with all Windows Workstation and Server OS versions (32- and 64-bit) starting from Windows 2000. The content of the RAM Disk can be made 'persisted' i.e. saved to an image file on the hard disk at regular times and/or at shutdown, and restored from the same image file at boot time.
Additionally, many commercial programs simply overwrote the memory space occupied by the RAM disk software. The GEOS operating system had built in support for the REU as a RAM disk , as did the C128's version of CP/M , and some disk copy programs used the REU to facilitate high-speed copying with a single disk drive.
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 ...
Commodore DOS, also known as CBM DOS, is the disk operating system used with Commodore's 8-bit computers.Unlike most other DOSes, which are loaded from disk into the computer's own RAM and executed there, CBM DOS is executed internally in the drive: the DOS resides in ROM chips inside the drive, and is run there by one or more dedicated MOS 6502 family CPUs.
Seagate ST 506 5 1 ⁄ 4-inch HDD with cover removed.. Late in 1984, Fiscal Information Inc., of Florida, demonstrated the Lt. Kernal hard drive subsystem for the C64.The Lt. Kernal mated a 10 megabyte Seagate ST-412 hard drive to an OMTI SASI intelligent controller, creating a high speed bus interface to the C64's expansion port.
The MSD SD-2 implements the Commodore DOS Duplicate command from the older Commodore PET dual drive series. Because the SD-2 has paired drive units and 6kB of internal RAM, it allows entire disks to be copied in less than 2 minutes. It is still unable to read and write an entire track of data (over 7kB) in a single rotation of the media, which ...
A RAM drive innovation introduced in 1986 but made generally available in 1987 [3] [4] by Perry Kivolowitz for AmigaOS was the ability of the RAM drive to survive most crashes and reboots. Called the ASDG Recoverable Ram Disk, the device survived reboots by allocating memory dynamically in the reverse order of default memory allocation (a ...
The 1571 was designed to accommodate the C128's "burst" mode for faster disk access, however the drive cannot use it if connected to older Commodore machines. This mode replaced the slow bit-banging serial routines of the 1541 with a true serial shift register implemented in hardware, thus dramatically increasing the drive speed.