made up of nine vertical and 18 horizontal dots. This gives almost fully formed characters, twice as dense as those created by a traditional matrix. Proportional spacing compensates for character size differences, with line justification, 130 to 150 cps and a 15 ips slew rate, giving a four to five times faster throughput than most daisy wheel printers.
centres. However, it could be used in any display console where a circular face plate is acceptable, and where high resolution, low distortion, multicoloured images could be of value.
Thomson - CSF Component and Materials Ltd, Ringway House, Bell Road, Basingstoke, Hampshire, RG24 OAG, UK
The model for data communication provides 70 to 400 lines per minute at a printing speed of 180 cps. Data rate is up to 9600 baud switch selectable. The standard 256 character buffer can be increased by an optical 2 K page buffer. An RS- 232C/V24 serial interface and three operator selectable line protocols are used with a nine pin free flight print head and a full ASCII 96 character set.
Centronics Data Computer Limited, Victoria Way, Burgess Hill, Sussex, RH15 9NU, UK
Colour crt for radar Magnetic focusing and deflection is said to improve resolution and geometry on the 56cm diameter radar screen. The conical part of the bulb is in metal instead of glass, to reduce weight and increase strength. A medium persistence multicolour phosphor is used, which gives images in red, orange, yellow and green. This tube is principally intended for radar displays in air-traffic control
Colour crt for radar and professional displays
DISPLAYS. JANUARY 1980
The linear array type of photosensitive ccd is thought will be used for document readers, facsimile systems, and other line-at-a-time image reading systems. The ccd consists of 1728 photosensitive elements in a single 22.5 mm line.
technology associated with laser based optical systems.
Sira, South Hill, Chislehurst, Kent, BR7 5EH, UK
Data analyser Having two memories, the analyser has possible use in state and timing analysis of serial data. Also for signature analysis of digital products designed for troubleshooting. The display memory can store up to 252 bits on each of eight channels for subsequent display on the screen. The reference memory meanwhile, can be used to compare two sets of data and identify differences between them. The reference memory also has an automatic restarting feature, which could be useful when searching for intermittent failures.
Tektronix UK Ltd, Beaverton House, P.O. Box 69, Harpenden, Hertfordshire, UK
Thomson - CSF Component and Materials Ltd., Ringway House, Bell Road, Basingstoke, Hampshire,
Resolution doubled Using scanned laser beams as a medium to generate and display an image is an innovation developed by the Sira Institute and Rediforn Simulation Limited. The laser scan, wide angle, high resolution simulator display is thought to be of primary use in the area of tactical military mission simulation, where a high degree of scene detail is needed to increase low altitude perception. The development team have generated and displayed an image through a continuous 180 ° x 60 ° field of view with a picture resolution across the whole area twice that of conventional tv systems. The achievement has been suggested to be a major advance in the whole area of
The Sony/Tekronix 308 data analyser
Pen-entry presented To speed up the preparation of tapes for automatic wiring machines, the Pen-entry computer system of the New York based company, WireGraphics, is being marketed in the UK by Pye Borders. The complete system consists of a mini-computer with 48 000 bytes of memory, dual floppy disks, interactive 38cm crt display, light pen, high speed type punch and a 150 cps printer.