Electromechanical parts are  one or more  parts that use an electrical signal to cause some kind of mechanical change

Stored Program is a program stored inside the computer

Vacuum Tubes a tool that controls electron current flow 

Transistors smaller and require less energy than the previously used vacuum tubes

Electronic Circuits are individual electronic components such as capacitors.

Microprocessors an integrated circuit that contains all the functions of a central processing unit of a computer.

Batteries were added to the mobile computers which would later become laptops and would need batteries to be powered on the move.

Quantum technology will increase the speed and efficiency of computers and it will be able to store more information and allow computers to continue to get smaller and faster.