On Fri, 01 Jun 2007 19:21:20 +1000, Pete wrote:
Jock! - That's right.
That sounds right for the acronym. Boy, that brings back memories. :^)
When I was about 14 or so, I got an after-school job at a PC shop (OSI superboards, Commodore PETs, etc, in those days) that was a block or two up the hill from Ellistronics. The biggest seller at the shop I worked at was the OSI Superboard, (6502/2MHz, 4KB RAM) which was a really nifty single-board computer that was very popular with university EE & Computing students, & also with hobbyists. The Superboard was a very spartan beast - just a big PCB with rubber feet & a keyboard consisting of (real!) keyswitches soldered right onto the main PCB. No PSU, raw, B&W composite video output (32 x 32 chars, 8x8 pixel chars), RCA cables for your cassette deck, RAM expansion was catered for with 8 cheap sockets for another 8x 2114 RAM chips. Any time someone ordered one with the FULL 8KB of RAM, I'd duck out to Ellistronics to buy a bunch of 2114s, plug 'em in & run a memory checker to burn them in. (Memory check in BIOS? - What's a BIOS?) After seeing how much regulated 5VDC/5A PSUs cost, & how hard they were to get, I realised that it was a good opportunity to make a little cash, & designed a basic, rugged little PSU to suit them, which we could sell for something like 1/3rd the price of anything else we could find. I didn't make very much profit on them, but it was a very proud feeling to see people buying something I'd designed & built myself. I also built & sold RF modulators for the Superboards, but they were just a EA or ETI kit, so not as much fun as the PSUs. At the time I left the place to get a real job, I'd designed a programmable character generator for the Superboard, & had gotten about halfway through a hand-wired prototype.
(Radio Parts)
Huh - I had no idea.
They must have - I go past them regularly. ;^)