How to Connect a Handheld Symbol Scanner to a Laptop. Symbol handheld bar code scanners from Motorola are useful for scanning information from product package bar codes into your computer. Because ...

As far as the pause symbol goes, many have noted it resembles the notation for an open connection on an electrical schematic. Some say it is simply a stop symbol with a chunk carved out of its center.

Click the symbol you want to use. The symbol's code will be displayed in the lower right corner of the window. Press the "Num Lock" key to activate the numeric keypad on your keyboard.