MS-DOS type-ahead buffer limit?

From: Ward Donald Griffiths III <gram_at_cnct.com>
Date: Wed Oct 21 07:56:52 1998

Sean 'Captain Napalm' Conner wrote:
>
> It was thus said that the Great Sam Ismail once stated:
> >
> >
> > Does anyone know why MS decided to limit the type-ahead buffer in MS-DOS
> > to 16 characters? Also, why they never increased this over time?
>
> That's not a DOS limit, but a BIOS limit. Blame IBM.
>
> -spc (That, and for IRQ conflicts. Thanks IBM. [1])
>
> [1] Yes, the IBM AT fixed that, but it required a bit more hardware to
> exist on the cards, and if you used a PC or XT card you still
> couldn't share IRQs. Sigh.

The Tandy 2000 had a full kilobyte of typeahead at need. Due to its
speed, the need was rare.

That, at least as much as the better keyboard, better display and
higher speed, was a real nice feature of the machine. So it didn't
play the most popular graphics games. That's what game consoles
are for.
-- 
Ward Griffiths <mailto:gram_at_cnct.com> <http://www.cnct.com/home/gram/>
When I was crossing the border into Canada, they asked me if I had any
firearms with me.  I said "Well, what do you need?"  --  Steven Wright
Received on Wed Oct 21 1998 - 07:56:52 BST

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