No security to worry about back then. It was simple.
I was still involved with computer/system security, but it was mainly mainframes & some miniās.
I promised a photo:
[ATTACH=JSON]{āaltā:āClick image for larger version Name: _MG_3608.jpg Views: 2 Size: 891.3 KB ID: 6270ā,ādata-alignā:ānoneā,ādata-attachmentidā:ā6270ā,ādata-sizeā:āmediumā}[/ATTACH] Yep, it booted [SIZE=26px]? ?[/SIZE]
It took a while. I think the arm that moves the read/write heads was stuck. There was spinning sound, but no clik-clik of the heads moving. After about 10 min. of trying, I guess the arm came unstuck and, suddenly, I heard clik-clik and the A> prompt popped up.
Those with keen eyes, and long memories will notice a number of mods:
- green screen, done using a transparent green photo gel. The original is B&W.
- anti-glare screening: a black mesh mounted on the display.
- a speed select switch below the brightness knob (top-center), with a red/green LED below it.
- below the speed switch is a reset button I added.
- the bottom full-height 5 1/4" floppy disk drive has been replaced with 2 half-height 5 1/4" drives.
- you can't see it, but I modded the main board so it can run at 2.5 or 5 MHZ. Yes, I said MegaHertz, not GigaHertz. This thing is from 1981 after all.
Wow. Love the photo. I never kept any of my really old stuff now I wish I did.
I remember carrying my original Compaq box computer with me on Airplanes. In those days I was teaching seminars about āVAX/VMS Internalsā and also carried a microfiche reader with me that had the VAX/VMS source code since it was too big to fit on a floppy disk.
While hardware has come a long way, in many ways, we are still solving the same software problems just using different programming languages and writing sloppier code since we have so much memory and a fast CPU with multiple cores.
Wow! What a nice picture. But it is fairly new technology isnāt it (no 8" floppies)? 
You know, I can remember thinking that weād never get much past the CPU speed of the 4Mhz Z80 when it came out. After all, those high speeds had a lot of RF issues to deal with in laying out the silicon, and the boards they were mounted on. I also recall thinking that my 5MB hard disk was soooooo large.
On the printer front, I am now printing a number of test models on the ANET A8, before I tear it apart for the rebuild. I plan to produce the same prints after the rebuild and tuning to assess whether or not it was worth the effort. We shall seeā¦
Nice. I love a scientific approach.
Itās in my nature. Drives my wife crazy, as I just cant let he be ambiguous on anything.
I donāt use a scientific approach on everything. Some things, I find, just donāt lend themselves to it; they are by their nature somewhat ambiguous, so I let those go.
Hi Irv, FYI. I just messages Creality store (creality3Dofficial.com, I know itās different from Creality) about using the WIFI and camera device with the new Ender 3 V3 SE; they said it was not suitable for the Ender 3 V3 SE printer.
P.S. I confused the two stores and bought from the so called āofficialā one and ordered the V3 printer from them fortunately, I had no issues. They also reply to questions. Itās a really nice printer.