Entering the start up programSoftware (such as the Operating System) is stored on tape; however, in order to read from tape into memory, a "loader" program is needed. You enter that "loader" (or whatever initial software is required) by mean of the Entry Section of the Console.
First, set the starting address as following:
1.- Actuate the Entry Switches to reflect the desired initial address.
2.- Press the LOAD button.
You will see the address reflected in the A-DISP. A memory read cycle will be performed automatically over that address and its content will be displayed in the D-DISP (if "Memory" have been selected in the Data Selector).
Second, enter the memory content as following:
3.- Actuate the Entry Switches to reflect the data word desired for the first location.
4.- Press the DEPOSIT button. The Entry Switches content will be copied into memory. A memory read cycle over the next address will be performed so you will see the A-DISP incremented and the D-DISP displaying the content of that memory cell, must likely the random value it contained after power-on.
5.- You can keep entering data this way. You can also use the EXAM-, EXAM+ buttons to examine content from the previous or next memory cells respectively; A-DISP and D-DISP will get conveniently updated. You can even jump to a different address as in steps 1 and 2. Please notice that when you press the DEPOSIT button, the Entry Switches content is copied into the memory cell which address is the one shown by the A-DISP at that time; hence, if you navigate away from the current "insertion point", you must get back to that point before continuing with data entry.
6.- Bring the A-DISP to reflect the initial address again (as in step 1). Now you can run the program by pressing the START button, as explained in the next section.
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Project start date: May 13 of 2009
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