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Joined: 05 April 2013
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Posted: 17 January 2018 at 10:05am | IP Logged Quote WhiteWizzard


USB 'only' keyboards are 'technically' more complex than PS2 keyboards; so using a USB 'only' keyboard with a USB-to-PS2 adaptor will simply not work due to the incorrect protocol.

Some keyboards have both USB and PS2 protocols built-in and typically come with a USB connector at the end of the cable (for when plugging into USB) and will in this situation use the USB protocol. And because these keyboards can also 'speak' the PS2 protocol, then when using a USB-to-PS2 adaptor, will then allow correct operation when inserted into a PS2 socket. The adaptor is just 'dumb' like you say, and just makes the physical connections allowing the PS2 protocol to talk to the 'end device'.

PS2 only keyboards will not work in a USB port (when obviously using a PS2-to-USB adaptor) due to the incorrect protocol.

Put simply, some people will say they have a USB keyboard working with an adaptor connected to a PS2 device. But in reality, they have a keyboard with both protocols built in, and use an adaptor to simply make the physical connection.

I have 'simplified' the above explanation - but hopefully this makes sense . . .


Edited by WhiteWizzard on 17 January 2018 at 10:08am

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Joined: 16 January 2018
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Posted: 17 January 2018 at 10:07am | IP Logged Quote EckRenrew

Gizmo wrote:
How cool is that!!!!!!

Great review to. Thanks to all those who emailed him suggesting he have a look at a Maximite.


Yea, thanks to that video review, I was introduced to this little wonderful machine. Otherwise, I'd probably miss it.

After a long struggle with Altronics' website (Altronics doesn't accept any credit card payments for international orders ), I just got to finally purchase this kit through MAD Electronics on eBay; ended up paying a little more than I expected on shipping, but at least I will get my hands on a Colour Maximite.

This will make me the second person in Brazil to own one (the first being forum user @Mauro Xavier).
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Joined: 08 November 2016
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Posted: 17 January 2018 at 10:31am | IP Logged Quote Boppa

bugga, thought it would be too easy
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Posted: 17 January 2018 at 11:48am | IP Logged Quote amitor

matherp wrote:
is it safe to assume that the 640x480 is similar/faster speed-wise?

The MMX only has two VGA modes 640x480 and 640x400 they should be fast enough.

See this for drawing speed

:) This is great at this resolution.
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