Commodore 1571 - définition. Qu'est-ce que Commodore 1571
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Qu'est-ce (qui) est Commodore 1571 - définition

FLOPPY DISK DRIVE
Commodore 1572; C1571

Commodore 1571         
<storage> Commodore Business Machines's "advanced" {disk drive} for the C128. It was the double-sided version of the Commodore 1570 disk drive but, unlike the 1570, worked quite well. The 1571 supported "burst mode" loading when used on a C128 in native mode, which increased the transfer speed from 1541 speed to about three kilobytes per second (about a 10-fold increase). The 1571 could be told to emulate a 1541 for use with a C64 or 1541 disks. Bugs in early releases of the 1571 ROM affected access to the second side of the disk. (1996-04-07)
Commodore Business Machines         
  • Amiga CD32 (1993)
  • Amiga 500 (1987)
  • PCB]] was an extraordinary attempt of cost saving by Commodore, which probably failed due to technical problems.<ref>Plus4world.com: [http://plus4world.powweb.com/forum/34360/ Bil Herd: About the Commodore 16 prototype]. Retrieved August 13, 2017</ref>
  • Commodore logo (1965–1984)
  • Commodore 64 (1982)
  • Commodore 64 Web-it PC
  • The Computer History Museum]]
  • Commodore's logo dubbed the "Chicken Lips"
  • Minuteman MM3S
  • Commodore PC20 (1992)
  • Commodore PET 2001 (1977)
  • Commodore PR-100 programmable calculator
FORMER NORTH AMERICAN HOME COMPUTER AND ELECTRONICS MANUFACTURER
Commodore Business Machines; Commodore computers; Commodore computer; Commodore 9290; Commodore International Corporation; Commodore international corporation; C=; Yeahronimo Media Ventures; Gravel (media player); Commodore international; Commodore Canada; Commodore Business Machines, Inc.; Commodore Business Machines Limited; Commodore Büromaschinen GmbH; Commodore Japan Limited; Commodore Electronics (Hong Kong) Ltd.; Commodore Japan; Commodore Electronics; Commodore International Limited; Commodore Portable Typewriter Company; Commodore (company); Commodore International, Ltd.; CBM (company); CBM (computer manufacturer); Commodore Business Machines (UK) Limited; Commodore Business Machines (UK); Commodore Büromaschinen; Commodore Electronics (Hong Kong); Commodore Bueromaschinen GmbH; Commodore Bueromaschinen; Commodore Buromaschinen GmbH; Commodore Buromaschinen; Commodore International Corp; Commodore Business Machines Incorporated; Commodore Business Machines Inc.; Commodore Business Machines Inc; Commodore Business Machines, Inc
<company> (CBM) Makers of the PET, Commodore 64, Commodore 16, Commodore 128, and Amiga {personal computers}. Their logo is a chicken head. On 1994-04-29, Commodore International announced that it had been unable to renegotiate terms of outstanding loans and was closing down the business. Commodore US was expected to go into liquidation. Commodore US, France, Spain, and Belgium were liquidated for various reasons. The names Commodore and Amiga were maintained after the liquidation. On 1995-04-21, German retailer Escom AG bought Commodore International for $14m and production of the Amiga resumed. Tulip Computers took over the brand in the Netherlands. Production of the 8-bit range alledgedly never stopped during the time in liquidation because a Chinese company were producing the C64 in large numbers for the local market there. In 2004, Tulip sold the Commodore name to another Dutch firm, Yeahronimo. In April 2008 three creditors took the company to court demanding a bankruptcy ruling. (2008-04-21)
Consolidated Commodore         
  • Consolidated Commodore cabin
AIRLINER FLYING BOAT FAMILY BY CONSOLIDATED
Consolidated Aircraft Commodore; Consolidated PY; PY Admiral; Consolidated Model 16; Consolidated Model 16 Commodore; Consolidated Model 9; Consolidated PY Admiral; Consolidated XPY-1; Consolidated 16 Commodore
The Consolidated Commodore was an American flying boat built by Consolidated Aircraft and used for passenger travel in the 1930s, mostly in the Caribbean, operated by companies like Pan American Airways.

Wikipédia

Commodore 1571

The Commodore 1571 is Commodore's high-end 5¼" floppy disk drive, announced in the summer of 1985. With its double-sided drive mechanism, it has the ability to use double-sided, double-density (DS/DD) floppy disks, storing a total of 360 kB per floppy. It also implemented a "burst mode" that doubled transfer speeds, helping address the very slow performance of previous Commodore drives.

Earlier Commodore drives used a custom group coded recording format that stored 170 kB per side of a disk. This made it fairly competitive in terms of storage, but limited it to only reading and writing disks from other Commodore machines. The 1571 was designed to partner with the new Commodore 128 (C128), which introduced support for CP/M. Adding double-density MFM encoding allowed the drive to read and write contemporary CP/M disks (and many others).

In contrast to its single-sided predecessors, the 1541 and the briefly-available 1570, the 1571 can use both sides of the disk at the same time. Previously, users could only use the second side by manually flipping them over. Because flipping the disk also reverses the direction of rotation, the two methods are not interchangeable; disks which had their back side created in a 1541 by flipping them over would have to be flipped in the 1571 too, and the back side of disks written in a 1571 using the native support for two-sided operation could not be read in a 1541.