CALMA COMPANY. 
The Calma Company, Santa Clara, California, USA, has developed an 
Analog Graphical Data Digitizing System to be used for the reduction of graphic 
data (contour and point-to-point) to digital magnetic tape for computer process 
ing and analysis. It consists of an electrically tiltable tracing bed and a separate 
electronics/recorder module. Fine-resolution digitizing is accomplished by 
servoing the size of the sampling interval to the speed of the movable stylus/ 
carriage assembly. Movements of the stylus are transmitted through cables of 
magnetic reluctance encoders, and the digital signals thus generated are processed 
and then recorded on a computer-compatible magnetic tape recorder. Additional 
allied data are recorded through a manual keyboard or an optional electric type 
writer. A data point can be processed and recorded at either a fixed sampling 
interval along the path of stylus movement or at varying intervals dependent on 
stylus velocity. Maximum tracing speed at the variable interval programmed 
(VIP) mode is about 7X that at the selectable interval programmed (SIP) mode. 
CONCORD CONTROL, INC. 
The Concord Control Company, Boston, Massachusetts, USA, has developed 
the Universal Graphics Processor (M8) consisting of an automated plotting table, a 
high-speed general purpose digital computer, a keyboard, a send-receive unit, a 
paper tape reader and a punch. Optional equipment consists of photoelectric tape 
readers, high-speed punches, automatic controls and magnetic tape transports, 
computer memory and input-output devices, card readers, and type composition 
keyboards. Point recording programs, line tracing programs, executive and 
special plotting routines are available as well. The Processor may be operated 
in three modes, namely, as an input tracing digitizer; as an output digital plotter; 
and as an input and output system, simultaneously. 
The automated plotting table has a large work surface and is equipped with 
a direct current servodrive system. A ball slide assembly is used to detect 
pressure from the operator’s hand in any direction and to signal such pressure 
to a control unit. The computer provides on-line evaluation and analysis of areas, 
volumes, slopes, and sight lines. It also provides for scaling, repetition of partial 
drawings and symbols as well as for editing, correcting, and generating various 
perspective sketches and engineering drawings. 
FAUL/CORADI/WANG DISTRIBUTORS. 
The Thomas L. Faul Company, Auburn, New York, USA, the G. Coradi 
Company, Zurich, Switzerland, and the Wang Laboratories, Tewksbury, 
Massachusetts, USA, have cooperated in producing a flexible line of systems 
for digital display and computer-compatible recording of coordinate data. In 
addition, the Wang digital recording system has been used on a number of photo- 
grammetric compiling and comparator instruments (Autograph, Aviograph, 
Kelsh, etc. ). The Wang 2300 Series device is fully transistorized and all silicon 
solid state easily installed on any coordinatograph merely by exchanging dial 
assemblies. It consists of a minimum of two or more digital readout encoders, 
two or more reversible counters, a recording programmer, an output control 
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