This British computer was one of the most popular computers in Europe in the beginning of the 80's. It was a small computer, which was a competitor of the Sinclair Spectrum.
The two models (16 and 48) had the same technical characteristics.
A small plotter was available for this computer.
I have an Oric-1. I bought the Oric rather than a Sinclair ZX Spectrum because I liked the proper bus expansion connector on the back and I wanted to experiment. It''s actually my second one since the cassette input failed in a few weeks on the first. The replacement failed too but by then the Oric-1 circuit diagram had been published in Oric User Magazine and comparing the diagram with what was actually in my Oric-1 (it wasn''t quite exactly the same) I could see part of the cassette interface that looked badly designed so I tried fixing it and it worked!!! The solution, if you have an Oric that won''t load from cassette is to fit a pull-up resistor on the input from the cassette interface to the 6522 VIA chip. I just soldered the resistor under the PCB across pins 18 and 20 of the 6522 VIA. I used 2k2 but 4k7 would probably be plenty. The original design used only the on chip pull-up but I knew from experience that the pull-ups in the 6522 were often very weak.
I remember a friend of mine had one of these. What most impressed me was that there were four built in commands for making sound effects: "shoot", "zap", "ping" and "explode".
Friday 15th October 2010
salsaman
NAME
ORIC 1
MANUFACTURER
Oric
TYPE
Home Computer
ORIGIN
United Kingdom
YEAR
1983
END OF PRODUCTION
Unknown
BUILT IN LANGUAGE
Oric Extended Basic v1.0
KEYBOARD
Chicklet keyboard, 57 keys. ESC, DEL ,CTRL, 2 x SHIFT, RETURN, 4 x arrow keys and one large spacebar
CPU
6502A
SPEED
1 MHz
CO-PROCESSOR
Custom gate array chip
RAM
16 KB or 48 KB
ROM
16 KB
TEXT MODES
40 x 28
GRAPHIC MODES
240 x 200 (high resolution)
COLOrsc
8
SOUND
Programmable Sound Generator AY-3-8912 (from General Instruments) 3 voices, 8 octaves + white noise
SIZE / WEIGHT
28 (W) x 17.8 (D) x 1.5 (H) cm / 848 g
I/O PORTS
Bus, Printer, Tape, RGB
POWER SUPPLY
External power supply unit
PERIPHERALS
4-pen plotter printer, 3'' floppy disk drive unit
PRICE
£129.95 for 16K model with starter pack (UK 1983)
That was my first computer ! Nothing can replace it in my heart, except the Atmos maybe...