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- Newsgroups: comp.sys.ibm.pc.hardware
- Path: sparky!uunet!grebyn!daily!richk
- From: richk@grebyn.com (Richard Krehbiel)
- Subject: What's the real difference between QIC-40 and QIC-80?
- Message-ID: <1993Jan5.134512.710@grebyn.com>
- Lines: 12
- Sender: richk@grebyn.com (Richard Krehbiel)
- Organization: Grebyn Timesharing
- Date: Tue, 5 Jan 1993 13:45:12 GMT
-
- What feature is it that makes the DC2120 tape store 120M on a Jumbo
- 250 and only 60M on a Jumbo 120? Does QIC-80 have twice as many
- tracks? Is the linear density doubled? Both run from the same floppy
- controller, so I doubt encoding differences.
-
- (I just helped my Dad install a Jumbo 120 drive. On the drive's
- circuit board were two boxes labelled "120" and "250", and an "X" was
- in the "120" box; clearly they share the logic board, perhaps with
- some component differences. So I start speculating: what's the real
- difference here that makes the 250 cost more? Perhaps the 250 has a
- different cam on the head positioner stepper and a different ROM that
- makes twice as many tracks available...)
- --
- Richard Krehbiel richk@grebyn.com
- OS/2 2.0 will do for me until AmigaDOS for the 386 comes along...
-