>>Another objective is to develop a reliable method for tape duplication before >>I damage or wear out the OEM distributions. I am thinking it might be >>possible to make a digital copy of the OEM tape on my Win10 machine, using a >>hi-fi tape deck as the playback source and Audacity as the DTR. With luck >>reversing the roles will yield a functional copy tape. But again, if someone >>has a better idea...
Ironically a HiFi deck might be the best tape desk to use. I can recall reading a few years ago that when computer program cassettes are duplicated using HiFi decks the results are often poor as these units are capable of picking up and reproducing a lot of the unintentional harmonics in the original recording. Whereas a good quality deck would do a good job at duplication. Also, a HiFi desk is likely to be stereo but the vast majority of computer cassettes are mono. The only exception I know of is Atari who used the second track for audio recordings. I’m kind of in the opposite bind trying to fix a few Convergant Workslates I have. They have a built in microcassette which uses a stereo head. I suspect that one track may have been for audio recordings (as you could also use the computer to dictate audio note to accompany a program) but then you could also use it as a telephone answering machine (strange idea). Without access to a stereo microcassette deck, of which only a few HiFi decks seems to have been made, I’m stuck as both cassette decks I have are not working. Jeff Birt From: M100 <[email protected]> On Behalf Of Charles Hudson Sent: Friday, April 30, 2021 12:37 PM To: [email protected] Subject: [M100] Memory release question Thanks, Peter, for your explanation of the memory segmentation issue; the fact that there is no 80C85 Jump Relative opcode and thus no relocation was unknown to me. As you may deduce my depth on the M100 is pretty shallow. Until recently I had only the bar code reader software to play with (other than the ROM suite) and my bar code reader seems to be DOA, so not much familiarity with machine code.
