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Path: utzoo!utgpu!water!watmath!orchid!egisin
From: egisin@orchid.UUCP
Newsgroups: comp.os.minix
Subject: Re: "Brooklyn Bridge" (115Kb serial i/o), slave cards, etc.
Message-ID: <9600@orchid.UUCP>
Date: Mon, 6-Jul-87 12:19:43 EDT
Article-I.D.: orchid.9600
Posted: Mon Jul  6 12:19:43 1987
Date-Received: Tue, 7-Jul-87 02:31:41 EDT
References: <227@amanue.UUCP>
Organization: U of Waterloo, Ontario
Lines: 17

In article <227@amanue.UUCP>, jr@amanue.UUCP (Jim Rosenberg) writes:
> There are various commercial software packages for PC's out and about, of
> which the one whose name comes to mind is Brooklyn Bridge, which can exchange
> data between PC's using the **OFF THE SHELF** serial interfaces at rates in
> the neighborhood of 115K bits per second.  (They tend to be marketed toward
> ...
> Now 115Kb is not exactly going to turn the head of someone who thinks a Sun
> Workstation is under-powered, but it sure sounds intriguing in the context of
> MINIX.  Andy's "remote file system run locally" just begs to be networked.

I think they do the high speed serial IO with interrupts disabled
and busy-polling.  This works fine under msdos where IO is busy-wait
and the networking and application are a single program.

This method of IO would not be feasible under Minix with
an interrupt driven serial driver.
(80 microsecond interrupt response? not with minix)