Cursor movements and clicks in menus were used to navigate.
Clicks were made on options in the menus. See red lines.
When Financial Analysis was chosen a search on the SIC code was made.
The SIC code would have been entered as the first option in the data entry menu.
F4 key enables entry of the company's numbers from the balance sheet and the P&L statement.
F7 key gets user to the screen on the right.
Calculated numbers appear in colors to reflect above or below average levels.
Example of screen that appears when F8 is pressed.
With cursor on a value (see little arrow) the ENTER key will provide an explanation.