Type of mouse that has a ball located on the bottom that rolls around on a flat surface as the mouse is moved. Sensors inside the mouse determine the direction and distance of the movement - Input. Optical mouse. Type of mouse that uses a laser to detect the mouse's movement and has no moving parts - Input.
The Strategic Defense Initiative (SDI) was a proposed missile defense system intended to protect the United States from attack by ballistic strategic nuclear weapons (Intercontinental ballistic missiles and Submarine-launched ballistic missiles).
The Soldier Fueling Initiative (SFI) is an Army program developed to establish a feeding (âfuelingâ) standard for Soldiers in Initial Military Training (IMT). It encompasses DOD nutrition standards, nutritional education, menu development, product selection, and preparation and serving standards.