tletski@iccgcc.decnet.ab.com (02/07/91)
I have been given the task of procuring a Mac for my company. Having not paid attention to all offspring of the Mac II for the past 3 years, could someone please fill me in on the CPU, slot, and memory configs of the following: Mac LC - Mac II - Mac IIx - Mac IIfx - Mac IIcx - Mac IIci - Mac IIsi - Thanks in advance Paul Tletski - Highland Hts., Ohio
rfischer@Neon.Stanford.EDU (Ray Fischer) (02/09/91)
tletski@iccgcc.decnet.ab.com writes ... >I have been given the task of procuring a Mac for my company. Having not paid >attention to all offspring of the Mac II for the past 3 years, could someone >please fill me in on the CPU, slot, and memory configs of the following: > > Mac LC - 16MHz 68020 16bit bus, 1 processor direct slot, no FPU (don't know memory config offhand) > Mac II - 16MHz 68020 32bit bus, 6 nuBus slots 68881 FPU, 1, 2, 5, 8MB > Mac IIx - 16MHz 68030 32bit bus, 6 nuBus slots 68882 FPU, 1, 2, 5, 8, 17, 32MB > Mac IIfx - 40MHz 68030 32bit bus, 6 nuBus slots 68882 FPU, 1, 2, 5, 8, 17, 32MB > Mac IIcx - 16MHz 68030 32bit bus, 3 nuBus slots 68882 FPU, 1, 2, 5, 8, 17, 32MB > Mac IIci - 25MHz 68030 32bit bus, 3 nuBus slots 68882 FPU, 1, 2, 5, 8, 17, 32MB > Mac IIsi - 20MHz 68030 32bit bus, 1 processor direct/nuBus slot no FPU*, 1, 5, 9, 17MB * the IIsi's slot requires a card either to work as a processor direct slot or as a nuBus slot (but not both). The card comes with a 68882 FPU and costs around $200. FPU = Floating Point Unit (co-processor) In all cases the FPU runs at the same speed as the CPU. + The IIsi, LC, and the IIci include circuitry to provide video signals. The other Mac II's require a video display card. Ray Fischer rfischer@cs.stanford.edu
emmayche@dhw68k.cts.com (Mark Hartman) (02/10/91)
In article <3150.27b11c5b@iccgcc.decnet.ab.com> tletski@iccgcc.decnet.ab.com writes: >I have been given the task of procuring a Mac for my company. Having not paid >attention to all offspring of the Mac II for the past 3 years, could someone >please fill me in on the CPU, slot, and memory configs of the following: CPU Slots Max memory Comments Mac LC 68020 1(020) 10 Mb? No Apple FPU available (3rd party) Mac II 68020 6(Nubus) 14 Mb* Upgrade to Mac IIx or Mac IIfx avail. Mac IIx 68030 6(Nubus) 14 Mb* Mac II & IIx both 16Mhz Mac IIfx 68030 6(Nubus) 128Mb(7) 40 Mhz; 32-bit clean ROM Mac IIcx 68030 3(Nubus) 14 Mb* Basically a IIx with 3 slots Mac IIci 68030 3(Nubus) 128Mb(7) 25Mhz; 32-bit clean ROM Mac IIsi 68030 1(below) 17 Mb(7) 20 Mhz; 32-bit clean ROM *Maximum amount of memory addressable under System 6, using every trick known to the Dogcow. IIcx has ROM SIMM slot, may receive upgraded ROM; if so, goes to 128Mb max. (7) Addressable under System 7, outrageous numbers due to 16Mb SIMMS; but it's possible. Unknown if IIsi supports 16Mb SIMMS; if it does, max memory on IIsi is 65Mb. (020) Mac LC has '020 Direct slot, unique to LC. Many 3rd party mfg's are making cards; so is Apple. Mac IIsi slot can be set up with adapter for either Nubus or '030 Direct (like SE/30, but cards that cheat on the SE/30 may not work). There are also many cards that connect directly to slot. FPU must be installed via slot card; no socket on board. Hope it helps. -- Mark Hartman, N6BMO "What are you just standing there for? Where Applelink: N1083 or BINARY.TREE do you think you are, DIS-ney World??" Internet: emmayche@dhw68k.cts.com -- General Knowledge, from uucp: ...{spsd,zardoz,felix}!dhw68k!emmayche CRANIUM COMMAND
rwyckoff@copper.ucs.indiana.edu (richard wyckoff) (02/12/91)
True 32-bit addresses can access 4 GIGABYTES of memory.
System 7 will allow VIRTUAL MEMORY... you can address *all 4 GIGABYTES*,
even if some of that "memory" is paged out to disk.
Yes, for most the current practical limit for real memory is 16MB * #SIMM-slots,
or 128MB on an fx or ci.
256kb SIMMS are virtually free,
1MB SIMMS have been under $50,
4MB SIMMS have been down under $200,
16MB SIMMS are still outrageous,
who knows what's next?
Also note that the cx is no longer in production.
I thought the II and IIx were also history, but I could be wrong.
(using a certain trick apparently *unknown* to the Dogcow..)
FYI, even before System 7a, it's possible to get 100MB (or more) on a ci.
This mem was NOT in the normal SIMM slots... but on a NuBus (cache?) card,
and was used by Allegro Common Lisp, which had a software patch known as
fixMMU-IIci. ACL was a Coral product, now is Apples.
(We had this at work....)
...Rich
(rwyckoff@copper.ucs.indiana.edu)cozza@cshl.org (Steven Cozza at Grace Computer Center) (02/12/91)
I have a simple question. What is the maximum memory that Macs running System 6.0.5 can address (the Mac IIci in particular). We currently have 8 Meg, but this is not enough for the apps we have running. Those being Objectworks, Mathematica, MacX and others. I have been told by one dealer that the max for a IIci is 8meg, and that to get more and actually be able to use it I would have to buy some software called Optima. Is this true?, and if so how good of a solution is it? Thanks for you help. Steven Cozza Internet: cozza@cshl.org US Mail: Cold Spring Harbor Laboratory Bungtown Road Cold Spring Harbor New York, 11724