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CD/DVD-ROM drive using an ISO image; Floppy disk drive; ATA controller or Serial ATA AHCI controller; Graphics card: Cirrus CLGD 5446 PCI VGA-card, Standard-VGA graphics card with Bochs-VBE, Red Hat QXL VGA; Network card: Realtek 8139C+ PCI, NE2000 PCI, NE2000 ISA, PCnet, E1000 (PCI Intel Gigabit Ethernet) and E1000E (PCIe Intel Gigabit ...
A variant of IMG, called IMZ, consists of a gzipped version of a raw floppy disk image. These files use the .imz file extension, and are commonly found in compressed images of floppy disks created by WinImage. QEMU uses the .img file extension for raw images of hard drive disks, calling the format simply "raw".
A typical floppy disk controller sends an MFM / FM / GCR encoded signal to the drive to write data, and expects a similar signal returned when reading the drive. [6] On a write, a hardware PLL or a software-based filter component undoes the encoding, and stores the sector data as logically written by the host.
qcow is a file format for disk image files used by QEMU, a hosted virtual machine monitor. [1] It stands for "QEMU Copy On Write" and uses a disk storage optimization strategy that delays allocation of storage until it is actually needed.
Mtools is an open source collection of utilities to allow a Unix operating system to manipulate files on an MS-DOS file system, typically a floppy disk or floppy disk image. [2] [3] The mtools are part of the GNU Project and are released under the GNU General Public License (GPL-3.0-or-later).
floppy ISO folders on host physical disk / device raw / flat (whole disk) raw / flat hdd QCOW QCOW2 QED VDI VHD (Connectix Virtual PC) VHDX VMDK 86Box: Yes Yes CD-ROM drive only No Yes No No No} No No No Yes No No Bochs [21] Yes Yes Yes Yes Yes Yes No No No No Yes Yes No v3, v4
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]
Bochs emulates the hardware needed by PC operating systems, including hard drives, CD drives, and floppy drives. It doesn't utilize any host CPU virtualization features, therefore is slower than most virtualization (as opposed to emulation) software. It provides additional security by completely isolating the guest OS from the hardware.