Cambridge English: CAE (C1 Advanced) - প্রযুক্তিগত ডিভাইস এবং সিস্টেম

a type of clock that works using a swinging weight at the end of a straight line

a detachable lock with a hinged or sliding shackle that can be passed through an opening and then secured shut, typically used to secure doors, gates, lockers, or containers

a rounded glass that is inside an electric lamp and from which light shines

the flow of electric charge through a conductor or circuit

a machine that uses steam made from boiling water to produce power and make parts move

the devices used to see distant objects more clearly by looking through two small telescopes mounted together

a shaped piece of glass or plastic that refracts light to form images, commonly used in cameras, microscopes, eyeglasses, and telescopes

a display by which the user can interact with a computer, smartphone, etc. by touching its surface

a device used for storing and retrieving digital information, which uses rapidly rotating disks to read and write data

(in electronic devices such as computers, etc.) the main printed circuit board that makes it possible for all the parts of a computer to communicate

a mechanical tool or an electronic device that is useful for doing something

the quality or the act of receiving radio, television or cellphone signals

a device that uses GPS technology and satellite signals to help drivers navigate to their destination by providing them with real-time information about their location and route

a device placed in or on the ear that delivers sound, commonly used with phones, radios, hearing aids, or communication systems

a plastic card embedded with a microchip that can store and process data securely, used for identification, authentication, data storage, and application processing

a device consisted of two or three metal pins that can connect a piece of electrical equipment to a power supply when fitted into the holes of an electric outlet

a portable electric light source, typically powered by batteries, used to illuminate dark areas

an instrument that makes looking at tiny objects or organisms possible by enlarging them which is useful in scientific studies