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- Xref: sparky comp.sys.mac.misc:16405 comp.sys.mac.hardware:16880
- Newsgroups: comp.sys.mac.misc,comp.sys.mac.hardware
- Path: sparky!uunet!spool.mu.edu!umn.edu!lynx!nmsu.edu!dante!bgrubb
- From: bgrubb@dante.nmsu.edu (GRUBB)
- Subject: Partial Mac & IBM Info
- Message-ID: <1992Sep11.182648.22567@nmsu.edu>
- Sender: usenet@nmsu.edu
- Organization: New Mexico State University, Las Cruces, NM
- Distribution: na
- Date: Fri, 11 Sep 1992 18:26:48 GMT
- Lines: 142
-
- Was rewriting -Mac & IBM CPUs Info- and desided to broaden the subject.
- Part of this is because the Mac vs IBM thread is getting very messy
- and that the Mac CPU, hardware, and OS are besigned to work together,
- so talking about one ONLY is silly. This info list is incomplete so
- any help that can be provided will be welcome. Thank you.
-
- The CPU
-
- Note: I am not showing ALL the CPUs made by Motorola & Intel, just the ones
- in the Mac and the MAIN IBM machines. This is why, for example, the Motorola 68008 and 68010 are not listed: Apple NEVER used these chips in the Mac.
-
- Special thanks to pwagner%us.oracle.com and nan@matt.ksu.ksu.edu for part
- of the following info.
-
- IBM ALU Registers External External Total Features/
- CPU bus address Notes
-
- 8088 16 16 8? 20? 52? {A dieing CPU}
- 8086 16 16 16 20? 60? {Ditto}
- 80286 16 16 16 24 72 Protected Mode & MMU
- 80386 32 32 32 32 128 32-bit Protected Mode
- 80486 32 32 32 32 128 FPU
-
- 80586: Now called the P5. I have not the foggiest idea except rumor
- indicates a 64-bit superscalar chip with many RISC-like features, a
- 386-emulation unit for backward compatibility. As to performance, Intel
- claims 100+ MIPS. It is to be out in the first quarter of 1993 [InfoWorld 27
- July and Vaporware 9/92].{We need to see this thing.}
- PowerPC: Rumor has it that it is due out at the end of the year and the 601
- machine will be four times as fast as a 50 MHz 486DX running Windows.{could
- give the P5 a run for the money with the five OSs that could run on this:
- DOS, Windows 3.x, OS/2, Mac OS, and UNIX (AU/X 4.0) and its earlier release
- date.}
- NOTE: this list is just the main CPU I do not have infomation on the
- differences of 386SX, 386DX, and 386SLC nor 486SX, 486DX, and 486DX2.
-
-
- MAC ALU Registers External External Total Features/
- CPU bus address Notes
-
- 68000 16 32 16 24 88 {Cheap CPU use}
- 68020 32 32 32 32 128 {no longer used}
- 68030 32 32 32 32 128 MMU
- 68040 32 32 32 32 128 MMU & FPU
- 68050: Not to be, see 68060
- 68060: WHO KNOWS? Better question with the RISCs coming: WHO CARES?
- PowerPC: Rumor has it that it is due out at the end of the year and the 601
- machine will be three times as fast as a Mac Quadra. Rumor is that Apple is
- planning to provide info to third party developers to use this as an
- accelorator for present Nubus Macs [InfoWorld 3 August and Vaporware 9/92]
-
- in compairing the CPUs the list looks like this:
-
- 8088/8086 ~ 68000 {a 16-bit vs a 16/24/32-bit chip (data path/address
- lines/data and address registers}{Side note: aside from use as a cheap CPU
- in the Classic and the lower end notebooks the 68000 is basicly a dead CPU
- at Apple due to its poor preformence compaired to the 68030 under System
- 7.0.dot and the increasing demands of QT and, soon Quicktime GX on the CPU.}
-
- 286 ~ 68020 {The MMU in the 286 pulls it past the 68020 and
- to the 68030 class while the 16-bit of the 286 pulls it nearer the
- 68000. Since a IBM guru here says that VERY FEW programers or OSes use the
- MMU of the 286 the 68000 looks like a better comparison, but between the
- 68000 and 68030 in the Mac line is the 68020 so I chose that. Side Note:
- the 68020 just bit it -again and for good, I hope- as a CPU.}
-
- 386 ~ 68030 {The MMUs and 32-bit nature of these chips puts
- them roughly together with protected memory a added feature of the 386.}
-
- 486 ~ 68040 {two 32-bit microprocessors with built-in FPU, MMU, 8K
- internal cache. The cache is implemented as two 4K caches in the 68040
- and one in the 486. This fits as far as that goes.}
-
- P5(586) ~ NA {This chip is intresting but may founder against the
- more robust PowerPC chip.}
-
- PowerPC = PowerPC{This is the only CPU to be used by both IBM and
- Apple and is planned to run DOS, Windows 3.x, OS/2, Mac OS, and PowerOpen
- (AU/X 4.0)
-
- Hardware:
- Color Support
- Mac: ALL PRESENT Macs execpt the Classic SUPPORT 24(32)-bit color. The
- LCII and IIsi can work on 32 bit images in 8 bit mode. With the exception
- of the 12" color{69 dpi} monitor ALL Apple Mac monitors are 72 dpi.
-
- IBM: I need infomation on this. monitor types:???(the old green and black
- type), EGA, VGA, SVGA
-
- Expandtion
- Mac: limited to the SCSI interface and memory expandtion until the LCII(PDS).
- IIsi lowest machine with NuBus support.
-
- IBM: I need infomation on this.
-
- OSes
-
- Mac
- 6.0.7: Requires 2 MB and HD floppy and features a GUI, sudo-multitasking
- (MultiFinder) and standard program interface.
- 7.0.1: Requires 4 MB, a 40 MB Hard Drive and a 68030 to run WELL. It has
- 6.0.7 features and AIC(between computers) built in network support, Virtural
- Memory in machines with MMU{1.6 times real RAM for least noticable speed
- degrigation on a IIsi}, and drag and drop.
- AU/X 3.0(Unix): Needs a 160MB hard drive and 8MB of RAM and something the
- power of a fx(68030) or a Quatra(68040) to run well.
- PowerOpen(AU/X 40): Rumor is that it is ahead of schedule to the point it
- COULD be out by the end of this year[MacWeek 13 July]
-
- IBM
- DOS 5.0: does this still have the 640K barrier?
- DRDOS 6.0: Need Info, please
- Window 3.1: breaks 640K barrier but still has to deal with DOS file stucture and runs well on 386SX.
- Windows NT: Rumor mill is that the FINAL version and ALL programing
- infomation not to be avalible before Oct 1993 (InfoWorld 25 May and
- InfoWorld 6 July which are sited in Vaporware 07/92 and 08/92 repectively.)
- OS/2: Unix like featuresIand unix like requirements; a 80MB hard drive,
- 4 MB of RAM, and 386 CPU.
-
-
- Price issue: Rumor is that Apple is dropping prices 15% to 20%
- [MacWeek 17 August] and that the Preforma line will be out by September 14
- [MacWeek 3 and 10 August]. IBM is planning cheap machines as well:
- A 25 MHz 386SLC model with a 60 MByte hard drive and color VGA for less
- than $1,200 is planned after September 14.[MacWeek 17 August]
-
-
- Bibliagraphy notes
- VAPORWARE is availible in the digest/vapor directory on Sumex(36.44.0.6) and
- is by Murphy Sewall, From APPLE PULP H.U.G.E. Apple Club (E. Hartford) News
- Letter $24/year, P.O. Box 18027, East Hartford, CT 06118.
- Phone #: "Bit Bucket" (203) 257-9588 {"These are rumors folks; we reserve
- the right to be dead wrong!"}
-
-
-
- Comments are welcome
-
- "Eliminate the impossible and what ever remains, no matter how improble,
- is the truth" -- Sir Arthur Conan Doyle through Sherlock Holmes
-
- "The Computer is your friend"--Parinoia RPG
-