![]() I've only replaced the batteries once since then! It is still going fine for purpose: boots up at least once per school day, runs the program automatically, shuts down after a minute. Around 2014 I started using it to "randomly"* generate the kids' lunch items. Eventually they came to me one broke in the mid-noughties and I tossed it, along with the printer and tape drive and. He also had two model 100s (one and a spare) for work, so when he was out of town we could use the second. Eventually my aunt sold it at a church tag sale - this was after 2000 but I think my father is still upset at her for not returning it. I do remember buying cassette loading games at the flea market. ![]() While growing up my father had a model 1 with expansion, ironically he preferred the tape drive to floppies. #Trs 80 emulator mac PcHad it running until the 90s when finally we finally got an IBM-style PC to run DOS and WordPerfect. Later connected it to a daisywheel to print the real thing out multiple times.Īlso doodled up a BASIC program (OK, it ran with compiled BASIC.) that analysed signal sequences (really analysis of strings of letters!) for DNA that provided the data for a published scientific paper that has become somewhat seminal: it has over 700 citations! Embarrassed to show the "back of fag packet" design when someone from New York wanted a copy - had to tart it up a bit and add some comments :O Scripsit: yes, we used that (PhD thesis) : disassembled it, altered it (print simple graphics / greek letters with an IDS Microprism dot matrix printer and various other improvements). I was always impressed that it WAS modifiable and mendable! Mainly plug-in for anything significant and regular 74LSxx (might not have been LS!) for everything else. Also seem to remember putting a Z80A into it and increasing the clock speed (double?) I remember putting all the (48k!) RAM into the main box which greatly improved the reliability so it wasn't sending data and address signals over the interconnect cable. ![]() #Trs 80 emulator mac serialBought it second hand in about 1980.Īdded a Disk Doubler, purchased from the US to go from 80kB to 160kB per disk! (though you never left the SuperUtility+ disk far away in case you had to mend a disk! Became very adept at mending errors.)Įven built and added a serial board to talk to Compu$erve through an acoustic coupler later! (which was actually the means of getting stuff OFF the system later!) TRS80 Model 1 with an expansion box and 2x 5.25 floppy disks. Anything became possible with this trick. It was thus possible to write a BASIC program that looked like 10 PRINT "No!" when listed, but output "Yes!" when run. #Trs 80 emulator mac codeThus one could control what the code looked like when listed, as opposed to the actual code hidden under the backspaces. This observation then led me to the technique of packing in ^h (backspace) characters, wherein placeholder characters could be replaced with backspaces. My recollection includes that there was an exotic PEEK/POKE technique to pack in a few extra characters, several more than could be entered by hand. Using the joystick, get the line into the spinning circle through the gap without touching. I also wrote a One-Liner "video game", which was a spinning circle (with a gap) and a joystick controlled line segment. To your left is a window, and on the floor is a trap door." as you like. I personally wrote an Adventure Game *ENGINE* in one line of BASIC, followed by as many additional lines of DATA statements as required for each "You've entered a dungeon. My recollection is that this was more popular on the TRS-80 Color Computer, and the results published in The Rainbow magazine under the heading "Men of Few Words" or the 'One-Liners" heading. The "One-Liners" were typically written in BASIC, concatenating the expressions up to the character limit per line of about 244 characters. ![]() Onto the 5.25-inch floppy disks, which required a good fair fraction of a minute each time. The only work around was to constantly save the file. The worst case was when the user had their head down transcribing a page of notes, only to look up after a minute or two to find several pages of existing work had been auto-converted to ASCII gibberish. This application had a subtle bug, wherein if the user accidentally left the key down for longer than an undefined number of milliseconds, then the cursor would come to life and inexorably move backwards turning the existing prose into ASCII gibberish. One of the primary word processing applications for this purpose was 'Scripsit' pretty much the default choice as there were few other options. ![]() In the very very early 1980s, there was virtually no other option. the TRS-80 Model III, along with a nice Daisy Wheel printer) was to do word processing for home use (e.g. One of the primary reasons that people bought these systems (e.g. ASAC offered "Ahhh, the good old days."ĪSAC offered, "Ahhh, the good old days." ![]()
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