Category: MZ-80K

Pico MZ-80K floppy disks (2)

Posted on 16 November 202412 June 2026 by Tim

The quest continues! The disk images I found a couple of days ago turned out not to be MZ-80K compatible ones (at least, not with the original drives and SP-6015

Pico MZ-80K floppy disks (1)

Posted on 11 November 202412 November 2024 by Tim

Now that I have a release 1 of the Pico MZ-80K, I’m starting to work my way through a number of enhancements that have sprung to mind as I’ve tested

RetroChallenge 2024/10 reflections

Posted on 31 October 202412 November 2024 by Tim

I started this year’s project with a challenge from an old Sharp Users Club magazine. “Who on earth would want to emulate an MZ-80K … ?” We do hobbies for

Pico MZ-80K software tests

Posted on 26 October 20248 April 2026 by Tim

As part of RetroChallenge 2024/10, I’m testing some old (and not so old) software on my Raspberry Pico MZ-80K emulator. BASIC programs (and link) Notes BASIC SP-5025 Supplied with the

The Raspberry Pico / Sharp MZ-80K emulator project

Posted on 5 September 20241 June 2025 by Tim

I’ve owned a Pimoroni Pico VGA demo base since the very early days of the Raspberry Pico. I bought it after seeing a couple of videos showing its capabilities, with

Attributed to Newton

Posted on 7 February 2022 by Tim

The BASIC 10 liner competition for 2022 is open for entries until Sunday 26th March. This year I’ve submitted a Sharp MZ-80K program in the PUR-80 category called ‘Attributed to

The drinking game problem

Posted on 8 August 202126 October 2021 by Tim

Hot on the heels of the 100 door problem, here is a monte carlo simulation for the drinking game problem as described by Mr Barton Maths and others. You have

The 100 door problem

Posted on 6 August 202126 October 2021 by Tim

Retro Computing twitter is a much more tolerant place than covid or politics twitter. By way of an example I had a lovely exchange with fellow retro enthusiast Michael Doornbos

Ducky Egg

Posted on 14 March 202126 October 2021 by Tim

One of the joys of shielding from the Covid-19 pandemic is that it’s given me time to dust off and repair my Sharp MZ-80K. After 40 or so years in

The nightmare of Sharp Pascal

Posted on 24 February 202126 October 2021 by Tim

One of the Sharp MZ-80K’s more unusual features was that it didn’t come with BASIC pre-installed in read-only memory like similar computers of the time. Instead, one of the first

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