-5- 
For profile speed regulation either "Veltropolo gas" 
can be used (continuous speed change), or panel step- 
buttons for constant speeds. The maximum speed is 
limited by the program, corresponding, to the registration 
distance. 
Deletion and correction of stored data with automated 
"backtracking" is foreseen. 
The primary storage medium for the coded data is the 
magnetic disk. The transfer from core to disk happens 
in sector units (320 words). From disk ? paper tape punch 
and print is possible. 
Input organization : 
The function of the AP/C-3 panel is reduced to a 
minimum in favour of a more flexible keyboard input. 
Panel: fixed functions during digitalization,as 
digital, on/off, ground/model coords., 
punch, speed (step buttons). 
1130 -keyboard: parameter input according to system 
Queries via console printer. 
1130-bit-switches: input of storage addresses, 
steering of program flow. 
S ystem flow-c hart: 
The starting point of the digitalization programs - 
is a relative or absolute orientated model. They 
ai'e called by the standart real-time program by a 
disk LINK command (see Fig.3)* 
To guarantee an easy changing and extention, the 
different prog.ram functions are written in subroutines 
which are called by a higher levelled control modul 
in the desired sequence.