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- Newsgroups: comp.sys.tandy
- Path: sparky!uunet!cis.ohio-state.edu!zaphod.mps.ohio-state.edu!moe.ksu.ksu.edu!unlinfo.unl.edu!cse!jam
- From: jam@cse.unl.edu (James Macfarlane)
- Subject: Hard Drives and Tandy
- Message-ID: <1992Sep1.234047.5198@unlinfo.unl.edu>
- Sender: news@unlinfo.unl.edu
- Nntp-Posting-Host: cse.unl.edu
- Organization: University of Nebraska - Lincoln
- References: <320@weyrich.UUCP> <-31002@nemesis>
- Date: Tue, 1 Sep 1992 23:40:47 GMT
- Lines: 31
-
- uhclem@nemesis.UUCP writes:
-
-
- >On the 1000, 1000A, 1000SX, 1000TX systems, Interrupt 2 was used for
- >hard disks, while other PC systems used interrupt 5. Some people even had
- >drivers that didn't need an interrupt at all. Made sense, as DOS always
- >waited until the disk I/O was complete anyway and really didn't need an
- >interrupt.
-
- >IRQ 5 was used on the early 1000 systems for PCJr compatibility, providing
- >an interrupt on vertical sync. A lot of games needed this.
-
- >Later 1000 systems provided a jumper so you could decide if you wanted
- >interrupt 5 to work like a PC or a PCJr.
-
- >Frank Durda IV
-
- I have a 1000 TL/2 and would like to put a larger volume (ie 80M) HD
- in it...is it possible, and if so how? Tandy hasn't been able to
- help me there, but they are probably looking as much at just their
- products as anything else.
-
- If not, does anyone want to buy my computer?
-
- James
-
- --
-
- James A. MacFarlane | Some of God's greatest | 2500 S. 10th St. #30
- jam@cse.unl.edu | gifts are unanswered | Lincoln, NE 68502-3439
- University of Nebraska | prayers. - G. Brooks | voice: (402)438-6632
-