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O > ORIC > ORIC 1   


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.

Notice that the sound chip was the same one used in the Amstrad CPC, MSX computers and Atari ST!

Its ROM was very buggy, & was later replaced with the Oric Atmos.



I remember when I got my first Oric-1 (I was still in school then) and immediately took it apart. Back then it was all magic. Computers these days don''t inspire me in the same way. Sigh!

I met the guy who wrote the ROM and he was rude to me! He nearly crushed my dreams but luckily failed.

Friday 19th September 2014
DigitalDunc (England)


2013 marks the 30th birthday of the Oric 1.
Some of the Oric community main sites have joined to organize some celebrations during 2013.

You can read more about it on the official celebration page (english and french) here:

We also have a facebook page with regular posts about the Oric machines, their history, peripherals, etc...

Tuesday 8th January 2013
Mickael Pointier (Norway)

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.

Saturday 6th November 2010
Brian Gregory (UK)
Brian''s Home Page


TYPE  Home Computer
ORIGIN  United Kingdom
YEAR  1983
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
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)
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...


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