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Thanks Gigabyte, those links are good. I won't risk the original BIOS chip - I can burn alternative BIOS and substitute.
Performance is not an issue for me. I don't plan using it for anything more...

As to the BIOS - the CP/M Implementation Guide is readily available with instructions and examples of BIOS construction. The boot ROM in most primitive form just sets up whatever ports and routines...

[SORRY - I dropped this in the wrong forum area. Should be P2 vintage?]

I've salvaged from scrap an OEM touch-screen billing terminal based on Advantech 5820 miniATX. It boots to a login screen...

This looks pretty much like my IQ 135 apart from the detached keyboard - the 135 is monocoque.

You should be able to identify whether the keyboard link is serial or parallel. In the 135, the...

I've found OTP ROMs of this type in specialised POS terminals based on Advantech micro-ATX. They hold BIOS plus proprietary extensions, supposedly to ensure security, but also to ensure that the...

I recall OASIS being the OS behind an early multi-user newsroom editorial system called Basys that was used in a few European newsrooms including BBC in the early 80s. A kind of primitive...

I suspect many if not most "security" updates in Android apps are fake. The business model for the "free" OS and apps is data-mining every user's behaviour and packaging it up for advertisers and...

I'm a recalcitrant who still uses XP on my daily workhorse, other OSes on other machines. I've never owned or bought Win 8 in any flavour, but I have one HP netbook that came with Win7 Home...

There are two phases to the demise of the Dick Smith chain.

The first was when it went from being a personal passion-driven enterprise to a subsidiary of a generic retail corporation. The...

Googling that IP address shows a lot of spam reports - pretty certainly a bot at work.

Cheap means price+transport, and transport means you have to be somewhere in space, not just somewhere in time. G3 iMacs are often given away for free, but cost $$$ to despatch.

Sometimes those "you've been hacked" messages are themselves phishing attempts. I assume you have carefully read the full headers of the email to see that it really comes from VCF?

Rick

"Avid" dictionary meaning is "greedy".

How many of us on this forum have life-partners who know the value of anything in our collection? A lucky few, I would guess. The naive posthumous chuck-out is probably more the norm than the...

You need to include a location in your profile. People all over the world read this forum, so freight is the number one cost issue.

Hi - there are a number of Australians and New Zealanders active here - welcome! I'm in Canberra.

re your questions:

1. Please do chronicle your restoration. You can do it as a blog on VCF, or...

I need to build a simple converter to do some simple arithmetic, string and file manipulations to align two datasets for comparison and graphing. I've used MBasic and QBasic for this sort of thing...

There's a category of personal computing products that have a relatively short life in the market, but start significant trends that end up making them obsolete.

Three examples might be the Palm...

Welcome - sounds like you will find interesting threads down in the Hardware forums. I suspect many people never find these forums because you have to scroll down to find them!
Rick

There has been at least one thread here by a guy getting some UK systems going. The main change has been the release (by the authors) into public domain of the TurboDos customisation sources, for...

The CP/M official documentation is freely available from many sources and tells you everything you want to know, though you also need to know what UART you are programming. If you have a working CP/M...

Have you tried swapping IDE drives to test? Could be a drive controller card failing to some level so system keeps polling it for drive ready? Or on-board IDE controller going slightly deaf?

I have a feeling that a wheel is being re-invented here :).

When I had this sort of CP/M loading problem, I found there was plenty of well-commented 8080 source code for CP/M boot sequences and...

I've had the occasional machine that would go into a silent memtest in some situations - such as memory cards in unexpected slots or not perfectly matched.

A lot of early-ish Compaqs hide the BIOS...

In Mandarin the number 9 is a near-homonym for the word "old" (same vowels and consonants, different inflection). Not quite the same marketing resonance as long-lived - though I take the point about...