Click Here to visit our Sponsor
The Latest News ! The History of Computing The Magazine Forums Collectors corner Have Fun there ! Buy books and goodies
  Click here to loginLogin Click here to print the pagePrinter ViewClick here to send a link to this page to a friendTell a FriendTell us what you think about this pageRate this PageMistake ? You have mr info ? Click here !Add Info     Search     Click here use the advanced search engine
Browse console museumBrowse pong museum


Pixel adventurer goodies !

see details
Amiga Workbench goodies !

see details
MSX Retro Gamer goodies !

see details
MZ-700 goodies !

see details
Camputers Lynx logo goodies !

see details
Atari ST bee icon goodies !

see details
READY prompt goodies !

see details
1kb memory only...sorry goodies !

see details
H.E.R.O. goodies !

see details
Apple II goodies !

see details
Horace is not dead goodies !

see details
I love my Oric-1 goodies !

see details
Commodore 64 boot screen goodies !

see details
Odyssey 2 / Videopac sprites goodies !

see details
Back to the roots goodies !

see details logo goodies !

see details
Commodore VIC-20 goodies !

see details
Atari ST bomb icons goodies !

see details
Destroy all humanoids ! goodies !

see details
Oric Atmos goodies !

see details
ZX Spectrum goodies !

see details
Amstrad CPC-464 goodies !

see details
Odyssey 2 / Videopac Select Game prompt goodies !

see details
Commodore 64 goodies !

see details

C > CORVUS SYSTEMS > Concept     


The Concept system was intended to be an individual diskless workstation operating within a Local Area Network (LAN). Each user could use the ressources of the computer and share both data and peripheral devices, including mass storage devices. The network connected computers offered some attractive cost advantages and allowed several people to work simultaneously on the same task.

Users' data were shared through the Corvus OmniNet networking system which was the core product of Corvus Company and the first affordable and reliable network system for small computers. OmniNet could handle up to 63 workstations with a maximum cable length of 1200 metres. The theoretical speed was at 1 MB per second. The Omninet interface was designed by Corvus, used a 6502 processor and NEC custom chips. An Omninet card was available during two years for IBM-PC, Apple II and S-100 BUS systems.As the Concept featured four Apple II compatible slots, the lan card was inserted in one of them in the first systems, then Omninet was on the motherboard of the Corvus.

The graphic bitmap display could be rotated and switch from portrait mode for the word processor to landscape mode for the spreadsheet. Software and hardware handled the change smoothly! The user could choose between several supplied type fonts or/and create his own caracter sets. Like the Apple Lisa, the display could be divided into independant windows, each with its own attributes. However, no mouse was used

The Concept ran CCOS, its own operating system (Corvus Concept Operating System), or P-System, the Java-like O.S. of the early 80'. A word processor (EdWord) and a spreadsheet (Logicalc) were available. They were specially adapted to the graphic features specific to the Concept. Several developpement tools could also be used: PASCAL and FORTRAN-77 compilers, 68000 assembler and a CP/M emulator.

Corvus manufactured several hard-disk drives, from 6 MB to 40 MB, and a stange mirror unit that allowed the user to backup a drive to a real video recorder using real video tapes - there was even a Panasonic (?) video recorder that the system knew how to drive remotely so it managed and recorded tapes, all by itself - pretty magic to watch in those days!! It could store up to 200 MB at the speed of 600 KB per minute. There were at least two versions of Corvus Bank Tape, the CBT-100 and the CBT-200 certified 100 and 200 Megabyte.

A second backup unit called The Bank also used video type tape, but it was built into a special (roughly square) cartridge that popped out of the top and held the tape in a continuos loop so there was no rewinding or stuff to do.

Like many other original computers, the Concept has sunk into oblivion in 1984, mainly due to the IBM-PC advent.



Hi Kirby!

A guy called Curt is building a ''Corvus Systems Museum'' site and I''m sure he might be interested in your Corvus system manual...

curt at atarimuseum dot com

Friday 18th May 2012

I keep clearing out "junk" and finding strange things. Does anyone have a use for a 1980 Corvus Systems manual titled,"CORVUS UTILITIES FOR CP/M Reference $ Installation." It is 5.5" by 8.5" and spiral bound, approximately 100 pages. Let me know soon or it goes in recycle.

Wednesday 14th March 2012
Kirby (USA)

VRAM was mapped in main memory. So each pixel on screen was a bit in the main memory

Thursday 9th June 2011
peter sandilands (Australia)


NAME  Concept
MANUFACTURER  Corvus Systems
TYPE  Professional Computer
YEAR  1982
KEYBOARD  Full-stroke 91 keys with 10 function keys and numeric keypad
CPU  Motorola 68000
SPEED  8 Mhz.
RAM  256 KB expandable to 512 KB
VRAM  VRAM was mapped in main memory. So each pixel on screen was a bit in the main memory
TEXT MODES  90 chars x 63 lines (Portrait mode)
117 chars x 47 lines (Landscape mode)
GRAPHIC MODES  707 * 479 dots
COLORS  Monochrome
SOUND  Sound generator
I/O PORTS  2 x RS-232 - 4 x Apple II compatible slots - 1 x RS 422
OS  CCOS, P-System, Unix, CP/M emulation
POWER SUPPLY  Built-in power supply
PERIPHERALS  Shared 6 to 40 MB hard-disks, VHS tapes backup
PRICE  $4995 (256 KB) - $5995 (512 KB)



More pictures

Click here to go to the top of the page   
Contact us | members | about | donate old-systems | FAQ
OLD-COMPUTERS.COM is hosted by - NYI (New York Internet) -