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From: sdh@joevax.UUCP (The Doctor)
Newsgroups: net.micro.mac
Subject: Re: Is a lisa a mac?
Message-ID: <227@joevax.UUCP>
Date: Thu, 7-Aug-86 10:13:42 EDT
Article-I.D.: joevax.227
Posted: Thu Aug  7 10:13:42 1986
Date-Received: Sat, 9-Aug-86 08:25:51 EDT
References: <831@batcomputer.TN.CORNELL.EDU>
Organization: Bell Communications Research Inc., Morristown, NJ
Lines: 28

> 
> 	We have been offered a used Lisa for our lab. We have some Mac+'s
>  & a 512 mac - will a lisa look like either one of these or is it yet
>  another subset of macompatibility. Is it very different? (I speak in
>  the software sense - I know what it looks like - a radio shack model one

With the program "Macworks" installed on the Lisa, there supposedly no
difference between it and a Mac as far as software compatabilty is concerned.

The true differences are:
1)  You can't use the 4 voise or complex sound generators. Trying to do will
    cause a system crash or even worse, a crash that disables the on/off button
    (the on/off button is software controlled, so it does happen).

2)  The pixels are rectangular on the Lisa not square, so everything looks
    a little stretched. There are small hardware kludges available to remedy
    this somewhat.

3)  The actual dimensions of the screen are different. Its definitely wider,
    but I don't recall if its taller.

4)  The screen buffer is in a different area in memory, so games that rely on
    this probably won't work (Megaroids, Frogger, Space War, Vanlandingham).

Most software behaves normally.

Steve Hawley
joevax!sdh