Commodore 1541

Commodore 1541
The second-most common version of the Commodore 1541 disk drive, using a Newtronics drive mechanism
ManufacturerCommodore Business Machines
TypeFloppy disk drive
Release date1982 (1982)[1]
Introductory priceUS$399 (equivalent to $1,260 in 2023)
Discontinued1993[1]
Media5¼" floppy disk DD
Operating systemCBM DOS 2.6[2]
CPUMOS 6502 @ 1 MHz[1]
Memory2 KB RAM, 16 KB ROM[1]
Storage170 KB[2]
ConnectivityCommodore proprietary serial IEEE-488 0.4 KB/s[2]
Power100, 120, 220, or 240 V 50/60 Hz 25 W (30 W max)[1]
Backward
compatibility
Commodore 64, VIC-20[2]
PredecessorCommodore 1540
SuccessorCommodore 1570 & 1571
RelatedCommodore 2031, 4040 & 1551
A rear view of the Commodore 1541 disk drive, with the top cover and shielding removed

The Commodore 1541 (also known as the CBM 1541 and VIC-1541) is a floppy disk drive which was made by Commodore International for the Commodore 64 (C64), Commodore's most popular home computer. 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 processor. The number of sectors per track varies from 17 to 21 (an early implementation of zone bit recording with 4 constant angular velocity zones). The drive's built-in disk operating system is CBM DOS 2.6.

  1. ^ a b c d e "VIC-1541 - C64-Wiki". 2016-03-11. Retrieved 2016-04-02.
  2. ^ a b c d "Manuals | Technical Comparison of Commodore 1541 2040 4040 8050 8250 Drives". 2011-03-30. Archived from the original on 2008-10-11. Retrieved 2016-04-02. DOS version(s) 2.6 2.6 2.1/2.7 2.5/2.7 2.7