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Re: Disk drive speeds

Subject: Re: Disk drive speeds
From: heuser.marcus@freenet.de
Date: 6 Feb 2005 03:54:12 -0800
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IIRC the clock of the Atari is indeed nominally higher (ca. 1,78 MHz)
than both the "standard" Apple or a C64 but it is enormously slowed by
the DMA of the screen controller ('ANTIC'), which can halt the cpu at
"will".

I have no exact numbers but I read something about an effective clock
of 0.9-1.0 mhz - in other words: Picture generation eats half the cpu
time thus making it theoretically comparable to the other systems.

Follow-Ups:
- Re: Disk drive speeds
  - From: "Michael J. Mahon" <mjmahon@aol.com>
- Re: Disk drive speeds
  - From: damage_x@hotmail.com

References:
- Disk drive speeds
  - From: big_d_316@yahoo.com
- Re: Disk drive speeds
  - From: damage_x@hotmail.com

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