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Recent content by Unknown_K

  1. Unknown_K

    Converting Acard AEC-7722 to AEC-7726

    They used to give out bumper stickers with orders and for a time I recall getting jelly beans in the box of stuff I got from them. New items that were pretty much closeout stuff but cheap. Think I got my NIB PPro overdrives there when I setup my Intel Pr440fx Win2k server back in the day. Long...
  2. Unknown_K

    Why didn't the Original Mac OS have pre-emptive multitasking

    Actually it was a Microsoft and IBM product until Microsoft left and started NT.
  3. Unknown_K

    Why didn't the Original Mac OS have pre-emptive multitasking

    You did notice Microsoft had to write a whole new operating system to do multitasking well and not crash? And while people do say Microsoft supports old software and hardware with new OS they tend to support the most popular commercial business apps and hardware vendors had to update their own...
  4. Unknown_K

    Why didn't the Original Mac OS have pre-emptive multitasking

    Probably a cost and intended user decision. The Lisa was built as a business machine while the original Mac was a single user single task at a time device. Once you make those initial decisions on how the core operates you are kind of stuck with it when you tack on updates and Classic OS...
  5. Unknown_K

    RAID-10

    One is more fault tolerant then the other while having the same speed. People started using stripes to get more speed then single drives could do and used mirrors so their data didn't get lost from failure prone drives. Sooner or later they figured why not do both (especially when adding more...
  6. Unknown_K

    Converting Acard AEC-7722 to AEC-7726

    I remember getting a good 50/68 pin SCA adapter from compgeeks a long time ago and they sold little terminators for the adapter so LVD drives could be terminated on the 50 pin bus. No idea what machine it is in.
  7. Unknown_K

    RAID-10

    Raid 10 is the same as raid 1 + 0 combining disk mirroring with disk striping and you need a minimum of 4 disks. Since you can only access 1 drive at a time because of master and slave on an IDE port you will need 4 ports for this to work.
  8. Unknown_K

    What draws you to 68K Powerbooks?

    I only have one and that's a 170 I think and I have it because it is mint and I like the monochrome LCD. I have well over 100 laptops but pretty much stayed away from 68k ones because of the hinge designs being crap. Have plenty of later PPC ones.
  9. Unknown_K

    Bootable 50pin SCSI CDRW Drive

    I wonder if the CDROM bezel will have the eject button line up correctly on the plextor.
  10. Unknown_K

    MediaVision Pro Audio Spectrum 16 - Breakout box pinout?

    So you need the breakout box and its electronics to use the card.
  11. Unknown_K

    Bootable 50pin SCSI CDRW Drive

    Dish soap and hot water will clean most of that up. Not snagging a bunch of NOS Plextor SCSI CD drives when they were being dumped was something I still regret.
  12. Unknown_K

    68040 fpga replacement

    To be honest a 68040/40 overclocked to 50mhz with some cache added on is good enough for me. I like to collect hardware and upgrades for that hardware but I never seen the point of faking a CPU in a system where all the other parts of that system would slow it down badly in real world...
  13. Unknown_K

    question regarding scsi scanners for earlier systems

    Do they still make decent scanners? For while people just purchased inkjet printer/scanner/copiers so I figured standalone scanners were not being made except for high end ones with duplex feeding etc (or just copier machines with PDF functions).
  14. Unknown_K

    question regarding scsi scanners for earlier systems

    Do you have to have an Apple scanner? UMAX made some decent SCSI scanners in the late 1990's that should work on Mac OS 7/8. I have a 1200s I think and used it on one of my Quadra 950's to scan some large images from magazines ages ago.
  15. Unknown_K

    Anybody work on G3 AIO Power Supplies?

    I recently received a G3 AIO machine from a forum member. While checking it out I think the 12v side of the PS is dead under 2V (5V works fine so the fan spins up but thats it). I did get a floppy icon on screen a few times before but none of the drives spun up and now nothing.
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