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Re: Installing AE Z80c card into a IIc?
- Subject: Re: Installing AE Z80c card into a IIc?
- From: Wayne Stewart <waynes@intergate.ca>
- Date: Thu, 04 Apr 2002 20:42:48 -0800
- Newsgroups: comp.sys.apple2
- Organization: Posted via Supernews, http://www.supernews.com
- References: <n_Bq8.184442$uA5.150506@rwcrnsc51.ops.asp.att.net> <3CABCB57.46CDD08A@intergate.ca> <atSq8.168645$af7.83540@rwcrnsc53>
- Xref: archiver1.google.com comp.sys.apple2:18646
Ernest wrote:
>
> What is an MMU and TMG chip. I'm sure that I'll slap my forehead when you
> tell me.
> Thanks for the info, though.
MMU - Memory Management Unit - a custom VLSI IC which replaces a lot of
separate chips which would otherwise be necessary.
The TMG is a HAL (Hard Array Logic) Serves the same function as a PAL
except it's ordered programming specified. In large volume production
it's cheaper than buying PALs and programming them.
> BTW, do you still have any of those Apple II clones that I saw a while back?
Most of them, a few have moved on and I've added a few others. Mostly
Lasers
and a Franklin. Picked up a few IIgs on the weekend. Two ROM 3 and a ROM
1
with a SCSI card. Not often I find any Apple II stuff around here.
Seem to be picking up a lot of Macs lately. Oh well, they're a good
source
of hard drives and superdrive mechanisms
Wayne