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SECTION II
OPERATOR'S CONTROL PANEL
The control panel is a rectangular box containing push buttons, indicators, and display
lights, which is located atop the central processor power unit.
It
also includes four SENSE
switches which may be set by the operator to change program flow.
The use of these switches
increases program flexibility by allowing a single program to be used in several different
applicat~ons.
SYSTEM
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HOIEYIELL 120
CONTROL PANEL FUNCTIONS
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SENSE
The control panel shown above provides a visual indication of the status of the entire system
and enables the operator to enter binary (or "octal" from an operator's standpoint) information
manually into control memory and main memory.
The switches and push buttons in the control
panel permit the operator to:
1.
Start or stop the execution of a stored program;
2.
Turn the power supply on or off;
3.
Load information from peripheral units into main memory;
4.
Clear all indicators;
5.
Execute single instructions;
6.
Interrogate and load main memory locations and control memory
registers; and
7.
Control the execution of programs by means of four SENSE switches.
OPERATOR CONTROLS
ADDRESS Push...Button Indicators
These push-button indicators display the address of a character in main memory.
In the
STOP mode, the address displayed in the ADDRESS indicators is normally the same as the
address contained in the sequence register.
2-1
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