At 09:44 AM 2/13/2001 -0500, Jud McCranie wrote:
>At 12:54 AM 2/13/2001 -0600, Ken Kriesel wrote:
>
>>Intel offered the 286 with 6, 8, 10, and 12.5 Mhz on one data sheet.
>>AMD got to 16 on this one, but an early data sheet lists 4, 6, and 8
>>(and says reprinted by permission of Intel). FPU was
>The 486 was the first to offer an on-chip FPU, came out at 20 and
>25 Mhz and went to 100 Mhz (core=3x memory bus)
>in the Intel line, 133 (4x) elsewhere (AMD?). The 486 socket's performance
>could be stretched a little further by using a Pentium Overdrive chip
>from Intel; at 83 Mhz (2.5x) givi
Jud McCranie wrote:
> At the time I got my Dell 20 MHz 386 (fall 1987) they had a 20 MHz
> 286.
;-) If it is time to brag about our computers, I owned (still have it) a
DAI homecomputer back in 1978 with a 8080A processor running at 2 MHz.
And it was blazingly fast.
YotN,
Henk Stokhorst
At 12:54 AM 2/13/2001 -0600, Ken Kriesel wrote:
>Intel offered the 286 with 6, 8, 10, and 12.5 Mhz on one data sheet.
>AMD got to 16 on this one, but an early data sheet lists 4, 6, and 8
>(and says reprinted by permission of Intel). FPU was separate.
>I don't recall a 286-20.
Dell had one. At
The 8088 debuted at 5 (& 8) Mhz; IBM derated it a bit for the PC because
4.77Mhz*3 = 14.318 = 4 * 3.57Mhz (TV color burst frequency).
An IBM (pre-XT) motherboard could be pushed to about 7.5 Mhz by splitting
the clock signal paths. FPU was separate. Ten Mhz chips were offered.
This chip had comp
