mattern@ncoast.ORG (Duane L. Mattern) (05/18/89)
In article <634@eeg.UUCP> roseann@eeg.UUCP (White) writes: >I have a zenith 286 supersport with 20 MBs. I am pretty happy with it >and I would like to add some things. One is a 80287 math coprocessor chip... May 11,1989 Electronic Design, p 34, There was a brief article about a new faster, replacement for the 287,387. Integrated Information Technology, Inc. (ITT) has developed replacements for the 287,387 (ITT-2C87, ITT-3C87), that have 2 to 3 times the throughput of the original chips, but dissipate about 1/2 to 2/3 the power (typ 0.5W). The chips also have a sleep mode when not in use to slash power consumption from 500mW to 150mW. The chips also have microcoded 4x4 matrix transformation operations that they claim will speed graphics applications like 3D CAD 6 to 8 times faster than with an original 80287. The chip also has 24 extra 80-bit register to supplement the 8 registers originally on the 287. Sorry, there was no pricing information. :( --------------------------------------------------------------------- | Duane Mattern (216)433-8186 (mattern@ncoast.uucp) | | Sverdrup Technology, Inc. at NASA Lewis Research Center| | 21000 Brookpark Rd, M/S 77-1 Cleveland, Ohio 44135 | --------------------------------------------------------------------- Newsgroups: comp.sys.ibm.pc,comp.sys.zenith Subject: new coprocessor, was (math coprocessor and mouse for zenith 286) References: <634@eeg.UUCP> Sender: mattern@ncoast.ORG (Duane L. Mattern) > In article <634@eeg.UUCP> roseann@eeg.UUCP (White) writes: >I have a zenith 286 supersport with 20 MBs. I am pretty happy with it >and I would like to add some things. One is a 80287 math coprocessor chip... May 11,1989 Electronic Design, p 34, There was a brief article about a new faster, replacement for the 287,387. Integrated Information Technology, Inc. (ITT) has developed replacements for the 287,387 (ITT-2C87, ITT-3C87), that have 2 to 3 times the throughput of the original chips, but dissipate about 1/2 to 2/3 the power (typ 0.5W). The chips also have a sleep mode when not in use to slash power consumption from 500mW to 150mW. The chips also have microcoded 4x4 matrix transformation operations that they claim will speed graphics applications like 3D CAD 6 to 8 times faster than with an original 80287. The chip also has 24 extra 80-bit register to supplement the 8 registers originally on the 287. Sorry, there was no pricing information. :( --------------------------------------------------------------------- | Duane Mattern (216)433-8186 (mattern@ncoast.uucp) | | Sverdrup Technology, Inc. at NASA Lewis Research Center| | 21000 Brookpark Rd, M/S 77-1 Cleveland, Ohio 44135 | ---------------------------------------------------------------------