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- From: peter_chen@cbis.ece.drexel.edu (Peter M Chen)
- Newsgroups: comp.sys.mac.hardware
- Subject: Re: MAC vs IBM-the CPUs
- Message-ID: <1992Jul21.190053.20003@cbis.ece.drexel.edu>
- Date: 21 Jul 92 19:00:53 GMT
- References: <1992Jul17.203430.23777@nmsu.edu>
- Sender: news@cbis.ece.drexel.edu
- Distribution: na
- Organization: Drexel University
- Lines: 51
-
- In article <1992Jul17.203430.23777@nmsu.edu>, bgrubb@nmsu.edu (GRUBB) writes:
- >
- > I was just reading the Mac vs IBM thread [Macs are too expensive] and
- > realized that a lot of people have not pointed out that the CPU in the Mac
- > has ALWAYS been 32 bit (the 68000 'talked' to the world in 24 bits though)
- > while the CPU in the IBM has been 8 bit (8088 [I think], 16 bit [286, I
- > believe] and FINALLY 32 bit [386 and higher] This was IGNORED when
- > I complained about the 680LC40 that did not have all the features of a REAL
- > 68040 and comapared it to a 486SX. {in "When is a 68040 NOT a 68040?" thread
- > back in May} I got a good deal of responces{thanks for clearing up my
- > confusion on this issue} and several lists of CPU comparising most of
- > which realate to wrong IBM to Mac CPU. I beleive this was due to lack
- > of proper knowledge and so feel free to correct any comments on the IBM
- > CPU {they came from a friend of mine a IBM guru who likes the mac better, so
- > they may be biased.
- >
- >
- > This is the most comprehencive of the lists that I got back in May.
- > Disk I saved it to died so I lost almost the whole article so
- > any one tell me who posted it to comp.sys.mac.hardware back in May I
- > would be very happy {my comments in brackets}
- > 8088/8086 = 68000 {yea right 8 vs 24/32 bit}
- > 286 = 68010 {I think not the 68010 was NEVER used in a mac}
- > 386 = 68020/68030 {better but the 68030 has MMU not the 68020}
- > 486 = 68040 {need more info on 486 to judge this feels right though}
- > 586 = 68050 {how do you tell? neither was out in late May.}
- >
- > Now could we please fill in the blanks in the below list to make the above
- > list better?
- >
- > MAC CPUs
- >
- > 68000: 32 bit internal 24 external (don't write to the 8 bits not used)
- > 68020: 32 bit internal/external (LC uses 10MB 24 bit uses only 8MB)
- > 68030: 68020 with MMU
- > 68040: 68030 with FPU
- > 68050: 68040 with (insert latest rumor)
- >
- > IBM CPUs
- >
- > 8088/8086 : 8 bit
- > 286: descibed to me "as two 8086s fused together back to back" (16 bit I think)
- > 386: 32 bit (that's ALL I know about this chip.)
- > 486: 386 with (what's added? need more info)
- > 586: I have not the foggiest idea except its ahead of sceddule.
- >
- > Thanks for your help
- >
- >
- There is no 68050, Motolora had already canceled 050, the next generation will
- be 68060.
-