Abacus - It is an ancient device that is used for arithmetic calculations., Capacitor - It saves electrical charges and can be used to maintain voltage levels., Transducer - It is a device that converts one type of energy to another., Computer Bug - It is an error in the source code that causes a program to crash altogether., Manometer - It is an instrument for measuring the pressure of gases and vapours., Acoustics - It is a branch of science that deals with sounds., Computer Virus - It is a computer programme that can copy itself and infect a computer without the permission or knowledge of the user., Seismology - It is the branch of science that deals with earthquakes., Lathe - It is a machine for shaping wood, metal, or other material., Animation - It is a method in which figures are manipulated to appear as moving images.,

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