Graphing computer

This is the computer that the author created for plotting line graphs. It works with the equation y = mx + c, y is the y-axis, x is the x-axis, m is the grading of the line, and c is the y-value of intercept or offset.
If you enter the equation for the line and start the computer, it will calculate the points on the graph and display them on the screen. The computer has 13 lines of code, 1.5 bytes or 3 drum cells, and a 4-bit adder and 3-bit ALU multiplier for power.