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DVD
CD
CPU

DVD: Digital Versatile Disc or Digital Video Disc. It is an optical disc storage technology used for playing digital video and audio.

CD: Compact Disc. It is an optical disc used for storing digital data such as music, images, and videos.

CPU: Central Processing Unit. It is the core component of a computer that performs computations and manages data processing, controlling other components such as memory, input/output devices, and peripheral devices.

The full meanings of DVD, CD, and CPU are as follows:

- DVD: The full meaning of DVD is "Digital Versatile Disc" or "Digital Video Disc". It is an optical disc storage format used for storing various types of media, such as movies, music, and computer data.

- CD: The full meaning of CD is "Compact Disc". It is an optical disc that was originally designed for storing digital audio, but it is also used for other types of data storage, such as software, images, and videos.

- CPU: The full meaning of CPU is "Central Processing Unit". It is often referred to as the "brain" of a computer, as it carries out most of the computer's processing tasks. The CPU interprets and processes instructions from computer programs and performs basic arithmetic, logical, control, and input/output operations.