Radio Shack TRS-80 PC-3

Do not use dollar signs or commas when entering calculations into the PC-3. These characters have special meanings in the BASIC
programming language.
In this manual we use the 0 to indicate zero, so that you can distinguish between the number (0) and the letter (0).
To help get you started entering data correctly, we will show each keystroke necessary to type in the example calculations. When
(SHIFT) is used, we will represent the desired character in the following keystroke. For example, pressing (SHIFT) and CD will
produce the (character. These keystrokes are written (SHIFT) o:J .
Be sure to enter CLear after each calculation (unless you are performing serial calculations). CLear erases the display and resets
the error condition. It does not erase anything stored in the computer's memory.
Simple Calculations
The PC-3 performs calculations with ten-digit precision. If you have not already done so, turn ON your computer by setting it
in
the RUN mode. Now try these simple arithmetic examples. Remember to CLear between calculations.
Input
Display
CD CID m CD CID (ENTER)
100.
IT) CID CID 8 CD CID (ENTER) 50.
m CID @ IT) CID (ENTER)
600.
CD CID CID CD CD (ENTER)
60.
25