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From: oster@lapis.berkeley.edu (David Phillip Oster)
Newsgroups: comp.sys.mac
Subject: Re: Why won't my Mac eject the disk?!
Message-ID: <1856@jade.BERKELEY.EDU>
Date: Mon, 8-Dec-86 19:33:08 EST
Article-I.D.: jade.1856
Posted: Mon Dec  8 19:33:08 1986
Date-Received: Tue, 9-Dec-86 11:15:46 EST
References: <1059@husc2.UUCP>
Sender: usenet@jade.BERKELEY.EDU
Reply-To: oster@lapis.berkeley.edu.UUCP (David Phillip Oster)
Organization: University of California, Berkeley
Lines: 19

In article <1059@husc2.UUCP> chou@husc2.UUCP (luyen chou) writes:
> I was also informed that there is a variable speed control for the 
>drive eject.

In Apple's first major computer, the Apple 2, the speaker was under
software control, but only by a single bit.  The programmer could write a
one to it to turn the speaker full on, a zero to turn it full off. The
programmer could make sound by modulating the writing of ones to the
speaker.  The modern Apple product, the Mac, has an 8 bit D-A converter
connected to the speaker, allowing for many more possibilities in the
machine's sound.

Similarly, the original Mac had a one bit disk ejector. Now we are told
that more modern machines have a variable ejector control.  Think of the
possibilities! Be the first on your block to use your Mac for skeet
shooting!
--- David Phillip Oster		-- "We live in a Global Village."
Arpa: oster@lapis.berkeley.edu  --
Uucp: ucbvax!ucblapis!oster     -- "You are Number Six."