What is the small plastic disc used to store data called?
A. USB-C
B. Compact disc
C. USB
D. Flip disc
Answer (2)
The small plastic disc used to store data is called a Compact Disc (CD). CDs were developed in the late 1970s and have been primarily used for storing music and data. They hold about 700 MB of data and revolutionized data storage by offering a digital format.
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The correct answer to the question about the small plastic disc used to store data is (B) Compact disc.
A Compact Disc (CD) is a small, circular piece of plastic used to digitally store data. CDs were first introduced in the 1980s by Sony and Philips. They were initially designed to store music, but later, they were adapted to store various types of data, including software and video files.
Key Features of a Compact Disc:
Storage Capacity: A standard CD can hold up to 700 MB of data or 80 minutes of audio.
Material and Structure: CDs are typically made of polycarbonate plastic, with a thin layer of aluminum or gold to reflect laser light and store data.
Technology Used: CDs use a laser to read the data encoded in the form of tiny bumps and flat areas. Data is read by shining a laser onto the disc's reflective surface and detecting the changes.
Usage: While their use has declined with the advent of modern storage solutions like USB and cloud storage, CDs are still used in some contexts, such as music albums and software distribution.
Thus, the Compact Disc is a small plastic disc primarily used for storing digital data, making it the correct choice.
