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my first Lisa


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#101 falen5

falen5
  • 6502

Posted 04 June 2017 - 05:22 PM

H roms are whats in mine schafeman

 

have to get a hard drive and do the keyboard

 

any idea what happened to your keyboard? , if no keys are working it sounds like a chip gone or something


Edited by falen5, 04 June 2017 - 05:24 PM.


#102 Themk

Themk
  • 68000
  • LocationU.S.A.

Posted 04 June 2017 - 05:50 PM

Its the foam pads. They wear out and break. In his case, he bought the wrong pads, so none of the keys work. Be thankful the mechanical switches used in Mac keyboards are much easier to repair, and more durable.

Macintosh SE SuperDrive, Macintosh SE/30, Apple IIgs ROM3, ImageWriterBanger II.

Currently building the amazing 68040! Performa (Quadra??!!) 638CD gets 40MHz full '040 [;)] , Ethernet, 136MB RAM, AV input card, and maybe something else. Should have performance comparable to the Quadra 840av when done! (A/UX doesn't work, but I still like this little guy right here: [:P] )


#103 Schafeman

Schafeman
  • 6502
  • LocationTwin Cities, MN

Posted 04 June 2017 - 07:36 PM

The seller of the pads told me many times they would work in the Lisa Keytronics keyboard, but they are too dense foam and don't work at all.  Luckily I got a complete refund, but damaged the rest of the pads getting the old ones out, so now my keyboard is out of order until I find more of the pads (or make my own).


Current Mac Collection: Quadra 700 / Quadra 950 / Mac Classic II / Mac SE30 / PowerMac 7300-200 / Powerbook 520

Current Non-Mac Collection: Apple IIgs (ROM3) Apple Lisa 2/10 / NeXT Cube and Two NeXTstation Colors


#104 MarNo84

MarNo84
  • 6502
  • LocationRottenburg, Germany

Posted 04 June 2017 - 10:17 PM

Hey falen5,

I love that LISA OS :-) just so simple as is and THATS the way to use a LISA - but to be true - MacOS runs so smooth on the LISA. Sometimes I just grab my MacWorks Disks and let the Mac live on that machine - playing MacOS Games is fun on the LISA. Since I only installed anfresh copy of LOS (Lisa Office System) on my ProFile Drive(s) - I think it should be possible to install multiple Operating Systems on that drive? For what I remember, it asks for the Dualboot option while initialization the Harddrive...

Marcus

My Collection: www.marnoweb.de & www.classic-computer-collection.de & MarNoWeb @YT:  www.youtube.com/channel/UCyaeYrRq3IpohMUleaODrUw
I like: pre 1990 portable/luggable/compact & All-in-One Systems


#105 CC_333

CC_333
  • 68LC040

Posted 26 June 2017 - 09:59 PM

Well, the 68000 in the Lisa is clocked at 5 MHz, so technically the Mac is faster.

 

But, the fact that it has more RAM and probably better video (and a hard disk option!) could allow it to works more smoothly than a "real" Mac, I suppose.

 

c


Main Macs: Early '09 Mac Pro, Mid '12 MacBook Pro 13" --- Secondary Macs: Early '08 Mac Pro, Mid '12 MacBook Pro 15"
Playthings: Mac SE/30, 3.0 GHz Mavericks-based HackServe, Many others... --- Desired: Lisa, Kanga PowerBook G3, Apple IIc, Apple II, Spare parts, etc.


#106 CelGen

CelGen
  • 68000
  • LocationKamloops, Canada

Posted 27 June 2017 - 01:32 AM

Well, the 68000 in the Lisa is clocked at 5 MHz, so technically the Mac is faster.

 

But, the fact that it has more RAM and probably better video (and a hard disk option!) could allow it to works more smoothly than a "real" Mac, I suppose.

 

c

 

The Lisas inability to lookup graphics routines in ROM blew the legs and one arm off the video performance.



#107 stepleton

stepleton
  • 6502

Posted 29 June 2017 - 12:22 AM

The Lisas inability to lookup graphics routines in ROM blew the legs and one arm off the video performance.


I don't think this makes a lot of sense.

It's true that the Lisa doesn't have anything like the Toolkit in ROM. This said, I don't think ROM on the Lisa (or the Mac) is really much faster than RAM, so if the software designers had wanted to, they could have made the graphics routines memory-resident for access that was as fast as possible.

In fact, I think MacWorks actually worked in essentially this way: it loaded a patched Mac ROM image into RAM, then used the Lisa's MMU to map that RAM region to the same memory addresses reserved for the ROM in a real Mac. So, effectively the same speed for access to graphics routines (and other toolkit stuff) as you would get with a ROM.

The slower clock speed is more to blame, I think. Additionally, I don't think the Lisa software engineers were coding for speed and efficiency in the same way that the Mac engineers did. They had a whole megabyte to work with, after all!

#108 CC_333

CC_333
  • 68LC040

Posted 05 July 2017 - 03:38 PM

Yeah, and a megabyte was considered absolutely *huge* at the time.

 

c


Main Macs: Early '09 Mac Pro, Mid '12 MacBook Pro 13" --- Secondary Macs: Early '08 Mac Pro, Mid '12 MacBook Pro 15"
Playthings: Mac SE/30, 3.0 GHz Mavericks-based HackServe, Many others... --- Desired: Lisa, Kanga PowerBook G3, Apple IIc, Apple II, Spare parts, etc.





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