Define taskbar , Control Unit , Microphone, Optical Scanner I will give you brainlest rating
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Answer:
taskbar-a bar at the edge of the display of a graphical user interface that allows quick access to current or favourite applications
control unit-The control unit (CU) is a component of a computer's central processing unit (CPU) that directs the operation of the processor. It tells the computer's memory, arithmetic and logic unit and input and output devices how to respond to the instructions that have been sent to the processor.
microphone-a piece of electrical equipment that is used for making sounds louder or for recording them.
optical scanner-a device which performs optical character recognition and produces coded signals corresponding to the characters identified
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Answer:
A taskbar is an element of a graphical user interface which has various purposes ... In more recent versions of operating systems, users can also "pin" programs
The control unit (CU) is a component of a computer's central processing unit (CPU) that directs the operation of the processor. It tells the computer's memory, arithmetic and logic unit and input and output devices how to respond to the instructions that have been sent to the processor.
A microphone, colloquially named mic or mike (/maɪk/),[1] is a device – a transducer – that converts sound into an electrical signal. Microphones are used in many applications such as telephones, hearing aids, public address systems for concert halls and public events, motion picture production, live and recorded audio engineering, sound recording, two-way radios, megaphones, radio and television broadcasting, and in computers for recording voice, speech recognition, VoIP, and for non-acoustic purposes such as ultrasonic sensors or knock sensors.
Optical scanner, Computer input device that uses a light beam to scan codes, text, or graphic images directly into a computer or computer system. Bar-code scanners are used widely at point-of-sale terminals in retail stores.