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A bit nibbler, or nibbler, is a computer software program designed to copy data from a floppy disk one bit at a time. It functions at a very low level directly interacting with the disk drive hardware to override a copy protection scheme that the floppy disk's data may be stored in. In most cases the nibbler software still analyses the data on ...
KryoFlux consists of a small hardware device, [4] [5] which is a software-programmable FDC system that runs on small ARM-based devices that connects to a floppy disk drive and a host PC over USB, and software for accessing the device. KryoFlux reads "flux transitions" from floppy disks at a very fine resolution. [6]
On other systems, like the Apple II and Atari 8-bit computers, almost all software is self-booting. On the IBM PC, the distinction is between a self-booting program and one which is started by the user via an operating system such as MS-DOS or IBM PC DOS. The term "PC booter" was not contemporaneous with when self-booting games were being released.
An internal floppy drive and controller are required as well; USB floppy drives operate strictly at the file system level and do not allow low-level disk access. [9] The WD1770 controller chip, however, was the seat of some early problems with 1581 drives when the first production runs were recalled due to a high failure rate; the problem was ...
Multiplan floppy disk for Macintosh. Multiplan is a spreadsheet program developed by Microsoft and introduced in 1982 as a competitor to VisiCalc.. Multiplan was released first for computers running CP/M; it was developed using a Microsoft proprietary p-code C compiler [1] as part of a portability strategy that facilitated ports to systems such as MS-DOS, Xenix, Commodore 64 and 128, TI-99/4A ...
A emulator screenshot of a program being loaded from disk using a fast loader. A fast loader is a software program for a home computer, such as the Commodore 64 or ZX Spectrum, that accelerates the speed of file loading from floppy disk or compact cassette.
SpinRite is claimed by its developer to have certain unique features, [4] such as disabling of disk write caching, disabling of auto-relocation, compatibility with disk compression, identification of the "data-to-flux-reversal encoder-decoder" used in a drive, and separate testing of buffered and unbuffered disk read performance, and direct ...
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 ...