Binary Adder and Subtractor Demonstrator is designed specifically to understand the methods of addition, subtraction and multiplication in binary system. Omega Electronics is an ISO 9001-2000 company that manufactures Binary Adder and Subtractor Demonstrator. Omega Electronics also offers Scientific Equipment and Lab Practical Equipment. Binary Adder and Subtractor Demonstrator demonstrates binary addition up to 5 bit binary, binary subtraction up to 5 bit binary and binary multiplication by repetitive addition up to 5 bit binary. Digital Systems are based on Binary System of counting therefore it becomes essential to master this system. The board is self-contained and requires no other apparatus. Practical experience on this board carries educative value for Science and Engineering Students.