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S > SHARP  > MZ-3500   


This computer was not compatible with the other MZ series. It was the succesor of MZ-3200 series

Sharp started to sell 5000 systems in Japan in November 1982 before selling it to the rest of the world where it didn't meet a large success because of its high selling price and numerous options.


Örjan Smith adds:
My first own computer was a SHARP MZ-3541. I used it for many years.
I had both EOS and FDOS, but no other applications. I never did understand EOS, which was menu-based. FDOS meanwhile offered a machine-code editor (which I sadly lacked documentation for) and a BASIC interpreter with a typical 80's style line editor (with which I performed miracles :).

The ports on the back (RS232 etc) where all of the card-edge variety for flat cables. The second port on the front to the right of the keyboard port is the light pen port. The graphics mode required an add-in graphics board (which I did not have), and I think that was also required to get at the 8 colours mentioned (I'm not sure though, I had a monochrome monitor). Without it, you could still produce 160x50 pixel graphics by use of 16 quarter-fill characters in text mode.

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Bought new in 1980, still being used with accounting software on weekly basis

Thursday 28th October 2021
Ken Roddick (New Zealand)

We still have one of these that is still being used in 2012!!!

Monday 23rd April 2012
Sparky (Australia)

This was second generation from Sharp on FDOS. I recall how impressed we were with how fast our financials software now ran. We used the basic. We were a small company with dozens of customers on the old model and this model, especially when they released it with harddisc, was sold to up to 100 customers (small businesses). Some of my collagues played with the CP/M which was cool but as we all know lost out to a poorer IBM-DOS... Using diskettes for production systems was interesting. I recall getting a call from a production baker at 2 am where it was clear the dust had settled on the floppy making it read/write with erros going into a loop... Very reliable machines and excellent finish.

Saturday 5th November 2005
Ole Lunddahl ( )


NAME  MZ-3500
TYPE  Professional Computer
YEAR  1983
KEYBOARD  Full-stroke keyboard
CPU  2 x Zilog Z80 A
RAM  128 KB (up to 256 KB)
TEXT MODES  80 chars x 25 lines
GRAPHIC MODES  640 x 400 dots (optional)
SOUND  Beeper (1 channel, 3 octaves)
SIZE / WEIGHT  47.1 (W) x 37.5 (D) x 14.5 (H) (main unit) / Total weight: 24 Kg
I/O PORTS  Centronics, RS 232c
BUILT IN MEDIA  one or two 390 KB 5.25'' disk-drives
OS  FDOS (Sharp OS), EOS 3.0 (European Operating System), CP/M or PROLOGUE
PERIPHERALS  2 x 1.2 MB 8'' floppy disc drives unit, Graphics card, 5 or 10 MB hard disc
PRICE  Unknown

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