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| Commodore 4040
serial WG 2357 made in W.Germany. |
Commodore 8050
serial M4002163 made in USA. |
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| While the
Datassette tape deck was the first storage
device bought by most PET owners, a disk drive
was much faster and more suited to business
users. Commodore produced a range of dual
drives, taking the new 5¼ inch disks.
Earlier disks had been a massive eight inches,
so the 5¼ inch ones were called diskettes. |
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While the 4040 and the 1541 can read each
others disks, BASIC programs load to different
addresses on different computers. In general
disks, drives and computers cannot be swapped.
Most later drives used the serial interface. |
I have a
second 8050 (M4009754). These three drives
connect using an IEEE-488 cable with a special
plug on the end that fits the edge connector
at the back of the PET. A printer could be
attached to the disk drive using a standard
IEEE-488 cable. |
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| Commodore 1551
serial AD4 004969 made in Japan. |
Commodore 1570
serial DA5 15055 made in W.Germany. |
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| Suitable
for the Plus/4, the 1551 connects to the user
port instead of the more usual (for Commodore)
serial port. It has the same style of case
as the 1541 rather than that of the 1541-II.
Since the 1551 could only be used with the
Plus/4, most people used the 1541 or the 1541-II. |
Designed
for the 128, the 1570 was a temporary solution
to the as yet unready 1571. Still, most people
stuck with the 1541 and the 1541-II as these
were readily available and could be used with
other Commodores. |
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| Commodore 1571
serial DA5 53575 made in W.Germany. |
Commodore 1581
serial 00564 made in Taiwan. |
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| This was
the top of the range disk drive for the 128
and 128D. Capable of faster speeds, greater
density and using double sided disks. An internal
power supply but does not get as warm as other
models. |
Unusual
for 8 bit Commodores, a 3.5 inch disk drive.
Works with the 64 but is more suited to the
128 and 128D. On sale from 1987, the 1581
is much smaller than any other Commodore disk
drive. |
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| Oceanic OC-118N
serial 1028550 made in Taiwan. |
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| A substitute
for the 1541 and other drives, the Oceanic
disk drive is smaller and lighter. Third party
hardware was rather limited due to protectionist
action by Commodore. |
The 1551
connects to the user port instead of the more
usual (for Commodore) serial port. The rear
of the plug has a connector for more devices. |
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