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LISA 1/10...seriously

Started by anotherLISAguy, Yesterday at 05:03:29 PM

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anotherLISAguy

So once the LISA 2/5 and LISA 2/10 designation became apple lexicon, wouldn't that make the original LISA with five (5) megabyte drive a LISA 1/5 and ten (10) megabyte a LISA 1/10 - curious if others have heard this term used to define period hardware configurations.

stepleton

Never heard it myself.

I tend to think of 1, 2, 2/5, 2/10, XL as being fairly informal terms. With the exception of "XL" it's mostly clear what they refer to, but they aren't part of a systematic naming system like IUPAC names for organic chemicals, say.

ried

FWIW, my Lisa 1 machines do not recognize any 10MB ProFiles when attached. I do not know if this is a limitation of the Rev. C / D CPU board ROMS, the I/O board ROMs, or a combination of the two. Therefore a Lisa 1/10 does not seem to be a thing.

stepleton

That's funny --- I'm pretty sure my Lisa 1 with ROM D is happy to work with just about any weird size of "ProFile" that I set up with a ProFile emulator.

IIRC all the boot ROM does is check to see whether a drive answers the basic handshake in order to try and boot from the built-in parallel port (or put the icon in the STARTUP FROM...) menu. Then when it's time to boot, it reads block $000000 into a spot in RAM and jumps there, and after that there's nothing more that the ROM does.

Checking now... The ROM (at least rev. H) only calls PROREAD once with a block address of 0. So it should work with any "ProFile" from sizes 532 bytes to 8.9 gigabytes...

It wouldn't surprise me though if earlier versions of the Office System and Workshop didn't recognise any size of ProFile besides 5 MB.

(Have you tried Office System 2.0? It's the latest that runs on a Lisa 1 as far as I know.)

ried

Ooh, that's a good question. I am definitely speaking of LOS 1.2 only. Will try LOS 2.0 and see if anything is different.

Lisa2

Lisa 1/10 is not a thing...

Officially: it was Lisa, Lisa 2, Lisa 2/10, and Macintosh XL.

Un-Officially; Lisa 1 ( The original Lisa after the Lisa 2 was released), Lisa 2/5 ( Just another name for a Lisa 2 that's not a Lisa 2/10).

To quote the 1988 Sun Remarking Lisa DIY guide:
"Lisa 2: The Lisa 2 has one 3.5-inch 400K disk drive, different disk drive controller circuitry, and a redesigned front panel to accommodate the single 3.5-inch drive opening. A 400K floppy controller, labeled the "Lisa Lite Adapter," is mounted inside the disk drive cage. The System I/0 board is socketed for an AMD 9512 arithmetic processor. It has nickel-cadmium battery backup for the real time clock. One 512K memory board is standard. The mother board has a mouse connector, two serial connectors, and an external parallel connector. The power supply is rated 1.2 A.

Lisa 2/10: The Lisa 2/10 has a completely different motherboard. The mouse connector is different. There's no external parallel connector on the back of the computer. Instead, there's an internal parallel connector and a 10MB internal I hard drive. An interrupt switch has been added. The system I/0 board is also different. There's no socket for the AMD 9512 coprocessor. There's no nickel-cadmium battery backup for the real time clock. The disk drive controller is different. An extra chip on the 1/0 board replaces the Lisa Lite Adapter which was formerly located in the drive cage. The disk drive cabling is different. The wiring harness is different. The power supply is different. One megabyte of RAM is standard. If you have Lisa OS disks, a 10MB internal hard drive, no Lisa Lite card, no external parallel connector, and a 1.8-A 110/220V power supply, yours is at least a Lisa 2/10.

Macintosh XL: The Macintosh XL is exactly the same as a Lisa 2/10. Only the sticker on the box, the operating system, and the instruction manuals are different. Instead of Lisa OS, the bundled OS is Macintosh System software and MacWorks XL, a Lisa program which allows 64K Macintosh ROM emulation. If you have MacWorks XL instead of Lisa OS disks, a 1OMB internal hard drive, no Lisa Lite card, and a 1.8-A power supply, yours is probably a Macintosh XL."