Control normally returns to TCL on the new account. These will hold the data, programs, and PRO Cs created during the tutorials. The numbers following the filename indicate the starting disk address, modulo, and separation for the dictionary and DATA levels of the file, respectively. The numbers following the filename specify the size of the file. These are called the modulo and separation, and a detailed explanation of these is found in Exploring the Pick Operating System.
Source code refers to the human-readable list of instructions to perform as a program.
In the Pick System, source code resides in the DATA section of files. Object code is produced by compiling source code into executable, machine-readable code. The name of the pointer item is the same as the source program item. The Pick Editor is activated with the ED or EDIT command, Follow the instructions in Fig. 2-5, and enter the program shown.