Control Universal catalogue

Section 1


The four members of the CUBE SYSTEM are compatible, fully engineered disk based computers, using rack mounted Eurocards following the Acorn standard data bus arrangement. All feature the CU-GRAPH high resolution graphics display, 64K bytes of DRAM memory, one or two double sided disk drives, and include in the price both the appropiate high-resolution monitor and the keyboard.

In each case the processor unit is the 6502 based CUBIT, although the 6802 based CUMOT and the 6809 based CUNINE are interchangeable alternatives. With the CUBIT card is the CUBOS operating system which is designed to support a disk operating system that runs Acorn Atom BASIC and is planned to also accomodate BBC BASIC.

The enclosure is a Eurorack with 12 one inch wide slots. Seven of these accomodate the disk module with one or two disk drives, and of the remaining five are allocated as follows:

Slot		1	2		3		4			5

Monochrome CUBIT CU-DRAM 64K CU-GRAPH-mono CU-PRINT Spare SYS 10, 20 Colour CUBIT CU-DRAM 64K CU-GRAPH-mono CU-GRAPH-extn Spare SYS 10, 20 (colour + print)

Thus in each case there is a spare slot, but there is anyway no reason why a customer requiring more spare slots should not order a full 19" wide rack at small extra cost. The 12" format is offered because of its convenient size and the power to cope with most requirements.

These computers are COMPLETE with keyboard video, all cables and connectors, and DOUBLE SIDED DISKS. Add only the software of your choice, and a suitable printer, and you are ready for work. The screen format of all of the systems is 80 columns by 25 rows, and the monitor supplied with each system has the resolution to cope with this performance. The monochrome screen displays 16K bytes on the screen, and the colour extension involves no trade-off in resolution, as the screen display increases to 48K. The whole of this memory is separate from the computer memory, while uses only 256 bytes to communicate with the graphics processor chip.

The price build-up of CUBE systems is shown because of the intention of offering the user an advantage over other computers in that any item in the system may be deleted or replaced or added to without price penalty in order to achieve exactly the desired system.

CUBE SYSTEM		  10	  15	  20	  25

CUBIT 			  75	  75	  75	  75
CUDRAM 			  99	  99	  99	  99
CU-GRAPH 		 180	 360	 180	 360
CU-PRINT  		  40	   0	  40	   0
DISK CONTROLLER 	 134	 134	 134	 134
DISK DRIVE 		 250	 250	 500	 500
DISK MOUNTING UNIT 	  15	  15	  20	  20
DISK CABLE 		  15	  15	  25	  25
OPERATING SYSTEM 	  40	  40	  40	  40
CU-KEY 			  40	  40	  40	  40
MONITOR 		 139	 495	 139	 495
RACK 			  80	  80	  80	  80
POWER SUPPLY 		  60	  60	  60	  60
ASSEMBLY CHARGE		  30	  30	  30	  30

totals 			1197	1693	1462	1958

order code		1410	1415	1420	1425

* A printer interface card is added to this list for system 10 and 20 to achieve a complete system ready for use. The CU-GRAPH extension included in the colour computers systems 15 and 25 has a built-in printer interface.

Single sided disks, costing 195.00 are available as an option to the double sided disks, but our advice is that the small difference in cost is amply repaid by the higher performance.

Note that all of the above systems use the standard data bus that is common to Acorn and Control Universal products, so any of the Eurocards from either range may be added to any of the CUBE systems.

Deliveries are scheduled to commence in September 1982.

CU-KEY is currently an unenclosed keyboard. An enclosure which also adds the option of a 25 key numeric and special function keypad is expected shortly.


CUBOS is supplied in a 4K EPROM and resides from $F800 to $FFFF. It is a 2K program from hex F800 to FFFF. The lower half of the PROM is taken up with part of the 10K version of Atom BASIC called CU-BASIC. It supports the Acorn disk operating system, the full 10K version of Acorn Atom BASIC, and includes drivers for decoding the CU-KEY qwerty keyboard and driving a video card. Versions are available for the Acorn 40 column card and CU-GRAPH in both text and graphics, and for the Acorn 80 column card in text only. In addition, it has the following built-in features:-

MEX - MEMORY EXAMINE AND CHANGE. Displays in hexadecimal and binary form the contents of a specified memory address, and allows the user to step forwards and backwards in memory through adjacent locations, and to change data at will. There is also a HOLD command which continuously examines a specified location. This is particularly useful for checking i/o ports as they change in real time.

GO to address specified.

CRC - CYCLIC REDUNDANCY CHECK. Produces a four digit hex value based on the data between specified memory locations. This is especially useful for the checking and identification of PROMs.

RAM - MEMORY TEST. Checks the operation of RAM memory between specified locations.

Turnkey. Up to 64 characters can be stored in the CUBOS PROM which will be treated as initialization characters as if they came from the keyboard upon switch-on.

DOS At switch-on CUBOS checks for the existence of the DOS ROM, and if found to be present, the system enters the Disk Operating System automatically.

Assembler. Atom BASIC includes a machine code assembler.

CUBOS Operating System

Memory Map

0000Operating System RAMRAM
2000Disk file areaRAM
2800Disk based utilities and floating-point variables
3000User RAM 36K bytes freeRAM
C000CU-BASIC integer BASIC
ADE machine-code assembler
D000CU BASIC floating-point extension
EDIT text processor
Industrial Control Language
E000CUDOS Disk Operating System4K EPROM E000-EFFF
F000CU BASIC (assembler and DIM statements & high-level PLOT commands)4K EPROM F000-FFFF
F800CUBOS Operating System

1218CG	CUBOS Operating System on PROM for CU-GRAPH			25
1218FC	CUBOS Operating System on PROM for Acorn 40-column VDU		25
1218EC	CUBOS Operating System on PROM for Acorn 80-column VDU		25

799SH	CUDOS Disk Operating System for CUBOS for Shugart drives	50
799TO	CUDOS Disk Operating System for CUBOS for Toshiba drives	50
799TA	CUDOS Disk Operating System for CUBOS for Tandon  drives	50

804	CU-BASIC. Acorn Atom 10K BASIC, for use with CUBOS		50


This two or three card system consists of the CUBIT 6502-based single board computer and a choice of video cards, bolted together and connected with a three way backplane. It comes complete with a CUBOS operatin system, and can accept the CU-KEY QWERTY keyboard. A popular addition is the Acorn Atom 10K version of BASIC (which includes a machine code assembler and Control Universal's modification to drive the graphics facilities on the 40 column video card) and 8K of battery-backed CMOS RAM memory, both of which are carried on a CU-MEM.


1170	Industrial Control Unit Level 1				195

	Includes:	605	CUBIT 1K 
			740	Acorn 40 column video 
			943	Three way backplane
			1218	CUBOS operating system  

1172	As above, but with 80 column VDU card			245
1174	As above but with CU-GRAPH monochrome VDU card		275
1176	As above but with CU-GRAPH colour VDU card		455
1171	Industrial Control Unit Level 2				385

	As 1170 above, but with the following additions:

		8K CMOS RAM (4 chips type 5516) 

1173	As above, but with 80 column VDU card			435
1174	As above but with CU-GRAPH monochrome VDU card		465
1174	As above but with CU-GRAPH colour VDU card		645

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