Teaching tool for computer binary system

The utility model relates to a teaching tool for computer binary system. The teaching tool for the computer binary system includes a first dip switch used for inputting a first binary number; a second dip switch used for inputting a second binary number; a first binary number displaying unit used for displaying the first binary number input through the first dip switch; a second binary number displaying unit used for displaying the second binary number input through the second dip switch; a third binary number displaying unit; a control press button used for generating computing signals; and a controller connected with the first binary number displaying unit, the second binary number displaying unit, the third binary number displaying unit, the first dip switch, the second dip switch and the controller press button. The computing signals trigger the controller to calculate the sum of the first binary number and the second binary number. The controller displays the sum of the first binary number and the second binary number in the third binary number displaying unit. The teaching tool for the computer binary system provided by the utility model has characteristics of being simple in structure, low in cost and convenient to use.