In case of malfunctioning, the Quick Disk Drive needs a new belt, with the following specifications: square shape diameter 40mm and 1.2mm thick.Īs this media has been rarely used on the MSX system, none of the MSX emulators has support for it. The Quick Disk interface cartridge will provide a ROM with special QuickDisk BASIC commands
This makes QD much slower then competing disk storage systems.ĭeleting files is also a problem, and you can only delete the last file or format the disk and start from scratch.
Data is recorded in a spiral and the whole disk needs to be scanned to do a directory listing. Instead of using tracks like regular disks, and a file system with directory, it is more similar to tape.
The medium is sometimes also called 3.0 inch which refers to the hard plastic casing.Īn unformated disk has 64kB on each side. This media is called 2.8 inch which probably refers to the size of the medium inside the hard plastic case. QD compared to the disk of Family Computer Disk System Specifications Sharp, Casio and Canon for some Japanese word processors.ĭisks of the Family Computer Disk System for NES (Nintendo) are Quick Disks with a longer casing. Yamaha, Roland, Korg, Akai and Kawai have used it for their synthesizer, sampler, sequencer and some other sound equipment. The Sharp MZ-1500 computer has a built-in Quick Disk Drive. Some other companies have used the Quick Drive outside the MSX standard. Instead the market widely adopted the 3.5 inch diskette format. Storia 3a - 4a Elementare (Philips Italy VG 8586).Matematica - Storia 5a Elementare (Philips Italy VG 8584).Matematica 3a - 4a Elementare (Philips Italy VG 8585).Grammatica 3a - 4a Elementare (Philips Italy VG 8587).GEST-PACK IV Magazzino (Philips Italy VG 8596).Geometria 5a Elementare (Philips Italy VG 8583).Geografia 5a Elementare (Philips Italy VG 8590).Geografia 4a Elementare (Philips Italy VG 8589).Geografia 3a Elementare (Philips Italy VG 8588).Bilancio Familiare (Philips Italy VG 8581).
Misumi quick disk full#
Only a hand full of MSX software titles were released on this format in Japan and Italy. When using the R800 mode, is looses synchronisation and you get an I/O error message on the screen.
Misumi quick disk serial#
The Quick Disk uses a Z8440 Serial Input/Output Controller at a certain clock speed, it lacks the WR signal because it is synchronised with the clock of the Z80. This storage device can be used with any MSX generation, but when used with Turbo R machines, it's limited to the Z80 mode (which implies booting while pressing the "1" key until you can hear a beep). Both the drives and the media are quite rare now. This format never really caught on in the MSX world. The disks were incredibly cheap and nasty and many were missing the shutter, with inevitably hilarious results involving sand.A Quick Disk (QD) is a magnetic disk of 2.8" designed by Hitachi Maxell, Ltd, and the drive was designed by Mitsumi Electric Co., Ltd in 1984. They were used on a few other systems, including Smith-Corona typewriters. Not so great for putting a filesystem on, but perfectly adequate if you're going to read the entire disk contents into RAM. You can rewrite individual sectors but the head always has to traverse the entire disk. From the FDC side of things they have a single track with lots of sectors. When the head reaches the centre of the disk a spring returns it to the outside. They're not random access there's a single spiral track, record-like, with the head in the drive being moved by a cam connected to the single drive motor. I briefly had someone interesting in adding Flu圎ngine support for it so that they could be read and written from normal PCs but haven't heard back from them. Ooh, Mitsumi Quick Disk! I've seen one of these in the wild exactly once, but not operating.
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