Hello Everyone. I dug out my old M1. Bought it when I was 17 a million years ago. It still powers up, but I get garbage on the screen. That is not what I am writing about.
I dont remember if I bought it with Level II basic or not. But It does have Level II basic in it. But only on 2 Rom chips. No expansion board is installed. I am confused I cannot find any information on what this is and why only 2 chips and not 3.
I removed the roms and read them out. Not sure what version it is but they do have the text Level II basic in the dump.
The other strange thing is one of the Roms has been bodged. VCC is jumped over to A11 and A11 is clipped so it does not plug into the socket any longer???
Has anyone ever seen this?
oh and these chips seem to be 2732 equivalents.
hmm. The date codes (8043) seem to indicate I upgraded to level II basic 2 or 3 years after I bought the M1. Very long time ago. I don't remember. So maybe this was some trick upgrade someone did for me?
Any thoughts are welcome.
I dont remember if I bought it with Level II basic or not. But It does have Level II basic in it. But only on 2 Rom chips. No expansion board is installed. I am confused I cannot find any information on what this is and why only 2 chips and not 3.
I removed the roms and read them out. Not sure what version it is but they do have the text Level II basic in the dump.
The other strange thing is one of the Roms has been bodged. VCC is jumped over to A11 and A11 is clipped so it does not plug into the socket any longer???
Has anyone ever seen this?
oh and these chips seem to be 2732 equivalents.
hmm. The date codes (8043) seem to indicate I upgraded to level II basic 2 or 3 years after I bought the M1. Very long time ago. I don't remember. So maybe this was some trick upgrade someone did for me?
Any thoughts are welcome.