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Topic: Commodore 1541

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	COMP.SYS.CBM: General FAQ, v3.1 Part 6/9
		Since all Commodore systems come complete with a built in operating system and BASIC programming language, the need for an operating system is minimized.
		However, Commodore's internal OS is not always the right tool for the job, so alternate OS systems are available for the CBM.
		Since most of the circuits in the Commodore computers were multi-purpose, experienced coders could use some of their features in non-standard ways.
	www.faqs.org /faqs/commodore/main-faq/part6 (4235 words)

	Beyond the 1541: Mass Storage for The 64 and 128
		Yet despite the insults hurled at the 1541, one Commodore source estimates that as many as three-quarters of the five million 64s and VIC-20s sold worldwide are used with 1541s (or the earlier 1540 drives).
		Commodore is also holding off on the release of the previously announced 1572 dual disk drive for the 128.
		Commodore was scheduled to announce a hard disk for the 64 at last summer's CES show, but held back at the last minute.
	www.devili.iki.fi /Computers/Commodore/articles/Beyond_the_1541 (2789 words)

	Commodore 1541 from FOLDOC (Site not responding. Last check: )
		The 1541 was a single-sided 160 Kb drive but converting to flippy disks would give another 160 Kb.
		The 1541 used a bit-serial version of the IEEE 488 parallel protocol.
		The Commodore 1570 was an upgraded 1541 for use with the Commodore 128.
	foldoc.org /?1541 (139 words)

	Commodore 64 ROM Generations
		Commodore may have done this to reduce screen "sparkle"—colored or white flashes that appear randomly on the screen.
		Commodore is said to be working on new ROM systems for the 64 and its peripherals.
		Commodore is also said to be working on new logic for printers and disk units.
	www.atarimagazines.com /compute/issue50/286_1_Commodore_64_ROM_Generations.php (2074 words)

	Commodore 1541 - Wikipedia, the free encyclopedia
		The Commodore 1541 (aka CBM 1541, and originally called VIC-1541), made by Commodore International, was the best-known floppy disk drive for the Commodore 64 home computer.
		The 1541 used a bit-serial version of the IEEE-488 interface, the speedier parallel version of which was used on Commodore's earlier drives for the PET/CBM range of personal/business computers.
		The Commodore 1570 was an upgraded 1541 for use with the Commodore 128, available in Europe.
	en.wikipedia.org /wiki/Commodore_1541 (1932 words)

	Commodore 1571 - Wikipedia, the free encyclopedia
		This was in contrast to its predecessors, the 1541 and 1570, which could read or write such disks only by manually flipping them over to access the second side.
		Commodore announced a dual-drive version of the 1571, to be called the 1572, but quickly cancelled it, reportedly due to technical difficulties with the 1572 DOS.
		The reason why Commodore decided not to use the upper five tracks by default (or at least to use more than 35) was the bad quality of some of the drive mechanisms which did not always work reliable at the highest tracks.
	en.wikipedia.org /wiki/Commodore_1571 (904 words)

	Commodore 1541 from FOLDOC
		The 1541 was a single-sided 160 Kb drive but converting to flippy disks would give another 160 Kb.
		The 1541 used a bit-serial version of the IEEE 488 parallel protocol.
		The Commodore 1570 was an upgraded 1541 for use with the Commodore 128.
	www.foldoc.org /?1541 (139 words)

	Commodore 64 games and software and Commodore 128 and 64 computer products
		Imperfect 1541 drives have been performance tested but may be noisey or have cosmetic blemish or other non-critical imperfection.
		This is a switchbox and cable for connecting a Commodore 64 to a television.
		This software allows you to convert standard ascii or Commodore ascii text (sequential) data files from Commodore format to IBM floppy disk format or vice versa as long as you are using a Commodore 1571 (5.25") or 1581 (3.5") disk drive.
	www.oldsoftware.com /Commodore.html (5701 words)

	Lassie has nothing on these boys...
		And due to some lack of planning in the serial IO (as mentioned in the 1540 entry), a bit slower than other typical 5.25" drives.
		Most variations of the 1541 came with two different drive door types, reflecting the manufacturer of their drive mechanisms.
		Like all Commodore disk drives, these drives were "smart" devices.
	www.zimmers.net /cbmpics/d1541s.html (334 words)

	Commodore from FOLDOC
		It is basically a 1541 with the capability to use "burst loading" (like the Commodore 1571), and lots of new bugs.
		The 1571 could be told to emulate a 1541 for use with a C64 or 1541 disks.
		The 4569 is equivalent to a combination of the 6569 VIC-II and the MMU of the Commodore 64.
	ftp.sunet.se /foldoc/foldoc.cgi?Commodore (1338 words)

	ICPUG Electronic Journal - Article Number 3 - Volume 2 Number 6
		With COMMODORE computers, on the other hand, you could issue the format command to the disk drive and the drive would busily format your disk on its own while you went on to do a few other things, like print a document for example.
		Commodore 64 users had the same amount of memory to work with whether they were working with cassette OR disk.
		The 1541 may have been slow, (it was universally hailed as one of the slowest floppy drives ever built), but it was slow because of its safety features.
	www.icpug.org.uk /national/journals/jnls2000/ej600/art3.htm (903 words)

	[CCTALK] Commodore 1541 Drive
		Both operate in a way that generates, typically, more transitions in the aggregate, than the original (NRZ) data stream, but locates the transitions propitiously in a way that limits their density so that it remains within the head-media combination's capability to resolve those transitons accurately enough to allow data recovery.
		My Apple-targeted HDC from back in the early '80's used ANSI standard group-codes, which, certainly isn't the only uesable scheme one could use, but it was established, and I could hand it to someone to build a lookup table for me, which is what I did.
		One of > the boards that came in the box was a card that sat inside the 1541, > between the drive mech and the 1541 mainboard.
	www.classiccmp.org /pipermail/cctalk/2002-May/062729.html (653 words)

	Ruud's Commodore Site: 1541
		That part of the electronics dealing with transferring the data to/from the floppy disk is discussed in 1541: Transferring data and therefore will not be discussed in this document.
		Personal note: I own a 1541 that is labelled 1541 on the front but 1540 on the back.
		With this 1541 I mean the well-known brownish one.
	www.baltissen.org /htm/1541b.htm (1085 words)

	C-64
		Its biggest drawback was its 5.25 inch "1541" floppy disk drive, which was the largest and slowest on the market.
		Regardless, the 1541 is a huge improvement over the cassette drives that came before it.
		Also in the museum is a Commodore 1541 5.25" floppy disk drive complete in the box, a Commodore cassette drive complete in the box, and a Commodore 1200 baud modem complete in the box.
	gotcha.classicgaming.gamespy.com /c64.htm (494 words)

	[CCTALK] Commodore 1541 Drive (Site not responding. Last check: )
		The lowest levels of the GCR encoding/decoding > are done in hardware both for the Apple Disk II and the 1541, and I don't > think they're compatible.
		That being said, you'd have to resort to driving the 6522s yourself to manipulate the bitstream directly -- very low-level, and of course with the small amount of RAM in the 1541 this would require impressively tight code.
		But it is, theoretically, possible at least on some level, even if it's merely decoding the bytes and handing them off to the C64 for processing (putting the "DOS" in the 64).
	www.classiccmp.org /pipermail/cctalk/2002-May/062898.html (255 words)

	R.I.P: Installing a parallel cable into the Commodore 1541-II drive
		Because of the somewhat limited space, this is a little bit more difficult than with 1541 drives of the A, B and C series.
		On the picture to the right two examples of different Commodore 1541 disk drive models can be watched.
		Commodore put pin 1 of the VIA to ground, which signals a »track 0 not reached« to the DOS.
	www.d81.de /R.I.P/Para1541II.shtml (483 words)

	The X1541-series interfaces
		Don't let the "1541" in the names of the cables fool you: all the serial cables – X1541, XE1541, XM1541 and XA1541 – are compatible with all Commodore drives that have the usual serial port; this includes 1541, 1570, 1571 and 1581 drives and compatible clones and other Commodore drives, too.
		The 1541 and 1570/1571 flavors are identical in concept and usage, only their implementation differs, because of the hardware differences between 1541 and 1570/1571 drives.
		The Commodore drives are supposed to be running in their native mode; the 1541 emulation mode of 1570 and 1571 drives is considered to be identical to genuine 1541 drives.
	sta.c64.org /xcables.html (4129 words)

	8-Bit-Nirvana: Commodore VC 1541
		Obwohl die 1541 wie gesagt sehr langsam und leider auch relativ anfällig gegen Dejustierung u.ä;.
		Zubehör ist folgendes: Commodore 1541 Diskettenlaufwerk, Commodore 1541-II Diskettenlaufwerk, Datasettenlaufwerk, einige Joysticks, einiges an Spielen (hauptsächlich auf Diskette) sowie ein passender Commodore 1084 Monitor.
		Biete eine Menge an Commodore Hardware an wie diverse C64 Modelle, meistens die alte Form, sowie Laufwerke von 1541 in weiß, grau sowie 1541 II mit Chinon Mechanik und C128 sowie 1571 und Monitore wie 1701 und 1702 und 1084 S D1 usw....
	www.zock.com /8-Bit/D_1541.HTML (717 words)

	Commodore 1540/1541 Service Manual
		Commodore 8-bit server maintained by Marko Mäkelä, specially The Document Page.
		Commodore B Series resource maintained by Edward D. Shockley
		Commodore Computer - A Canadian site with a gallery, advertisement & documentation archive, and more
	www.devili.iki.fi /Computers/Commodore/C1541/Service_Manual (175 words)

	Commodore - PC File Transfers
		Some Commodore compatible disk drives have a built-in MFM controller which is capable of accessing PC disks.
		The connection is made with a null-modem cable between the RS-232 port of the Commodore and the COM port of the PC.
		This is accomplished by connecting the PC's LPT port to the Commodore IEC port using an X-1541 cable.
	www.geocities.com /profdredd/cxfers/cxfers.html (3272 words)

	The RAMBOard, standard version for the Commodore 1541
		One of these contributions were scans of the installation instructions for the very first item of the RAMBOard series, The RAMBOard for the Commodore 1541 disk drive, as well as the models 1541 A, 1541 A-2 and the former revisions VIC1541 and VIC1540.
		The »Illustrations« section states that this RAMBOard version is suitable for installation into the Commodore 1541C disk drive model although we know that there is another RAMBOard version specialised for installation into the 1541-II as well as the 1541C.
		From Commodore service manuals and several pictures of the Commodore 1541C disk drive model it is known that the processor 6502 sits inbetween the both 6522 VIA chips.
	d81.de /CLD-RAMBOard/RAMBOard-41.shtml (625 words)

	Commodore Vic 20
		The Vic-20 was a predicessor to the Commodore 64.
		The reason was because the Commodore 64 ran just a tiny bit slower due to the fact that it had more screen memory to refresh and it was therefore not compatible with the 1540.
		I have a beat-up but functioning commodore 1541 disk drive my uncle left it behind when i was little and i took pretty good care of it even though i have no use for it...
	www.vintage-computer.com /vic20.shtml (1390 words)

	R.I.P: Installing a parallel cable into the Commodore 1541-II drive
		Because of the somewhat limited space, this is a little bit more difficult than with 1541 drives of the A, B and C series.
		On the picture to the right two examples of different Commodore 1541 disk drive models can be watched.
		Commodore put pin 1 of the VIA to ground, which signals a »track 0 not reached« to the DOS.
	d81.de /R.I.P/Para1541II.shtml (472 words)

	Vesalia Computer - Cables and Adapters for Commodore 64 and Other Home Computers
		The transfer cables of the X1541 series are designed for transferring data betweeb PCs and Commodore 1541 disk drives.
		Commodore 64/128, VIC 20, Commodore 16, 116 and Plus/4, 1540/1541/1570/1571/1581 disk drives, and Commodore printers/plotters.
		Use this cable to connect your parallel Centronics printer to the Commodore 64/128 userport.
	www.vesalia.de /e_c64kabel.htm (361 words)

	Commodore Hardware
		Commodore 1541 Disk Drive, in fully working order, and very good condition.
		Commodore 1541 Disk Drive, in fully tested working order.
		Commodore 64C (redesigned/updated keyboard), in good overall condition, with all cables, original box in very good condition, and cassette recorder.
	www.retrogames.co.uk /stock/html/commodore_hardware.html (660 words)

	Recovering TABICAT Braille files (Site not responding. Last check: )
		The format of data on the Commodore's floppy disks is not physically compatible with modern disk drives.
		The original disk drive was called a "1541" (Commodore's model number for the disk drive).
		Physically connecting a Commodore 1541 drive to the parallel port of an IBM-PC (or compatible) is discussed at this page.
	www.vbti.org /tabicat.html (1412 words)

	SP-12 - Upgrades
		1541 Technical Description The 1541 has circuitry for both a disk controller and a complete disk operating system, a total of 16K of ROM and 2K of RAM memory.
		The original drive used was the Commodore 1541, which was more usually used with the C64 computer.
		The only problem with the 1541 is the very slow data transfer rate of 400 bytes/sec.
	www.emulatorarchive.com /DrumMachines/SP12Overview/SP12Upgrades/sp12upgrades.html (881 words)

	Commodore Zone - F.A.Q (Site not responding. Last check: )
		To turn the 1541 disk emulation off, press function key F10 to bring up the control menu, then select the Options menu item, then move the cursor down to the 1541 Emulation option and using the cursor keys change the option to OFF.
		What you would need to do is download a copy of the Star Commander software and connect a 1541 disk drive to the PC's Parallel Port using the X1541 cable and copy the files in a D64 file or T64 file directly to a blank formatted 64 disk.
		The X1541 and COM1541 cables are for connecting a Commodore 64 1541 disk drive to the PC.
	www.the-commodore-zone.com /faq.htm (3297 words)

	Commodore 1541 Disk Drive Technical - Mug > Commodore 64 > Retrodynamics \| CafePress
		Commodore 1541 Disk Drive Technical - Mug > Commodore 64 > Retrodynamics
		Technical drawing of a Commodore CBM 1541 5.25" floppy disk drive.
		Perfect for anyone who grew up using a C-64 or any classic micro back in the 80's.
	www.cafepress.com /retrodynamics.19710021 (80 words)

	Criminal Investigations: Commodore Hardware Leaves No Trail?
		Commodore introduced a datasette, which was basically a cassette player attached to the Commodore.
		In order to access data from a diskette on a Commodore system, you had to know which drive "number" (think SCSI device ID for a bad comparison) the drive was using.
		If nix is your thing, you can use CBM4LINUX to mount a Commodore* IEC device such as the 1541 or 1581 as a block device and then use the copy software included in the package to read or write the filesystem on the disk.
	blogs.ittoolbox.com /security/investigator/archives/criminal-investigations-commodore-hardware-leaves-no-trail-11578 (2565 words)

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