Date   : Sun, 17 Jul 1994 18:24:43 +0100
From   : jfid@... (James Fidell)
Subject: What's a 6845 ? [was Re: What language do we speak?]

Chris Rae wrote:

> I'm sorry, but I really am ignorant when it comes to beeb hardware.
> What is the 6845?

It's the CRTC (cathode ray controller chip). Together with the video ULA
it controls how what's in screen memory appears on the monitor.

It also automatically handles the positioning of the cursor and
monitoring of the light pen.

James.

-- 
 "Yield to temptation --             |
  it may not pass your way again"    |     jfid@...        
                                     |
        - Lazarus Long               |              James Fidell