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Invention: Compact Disc (CD)
Inventor: Sony Corporation and Philips Electronics
Purpose: This was used, and is still used today, to store and play digital audio recordings and videos.

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Invention: First Personal Computer
Inventor: IBM
Purpose: The personal computer was made to process information faster than other computers. It was also able to hook up to a TV, play games, and process text.

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Invention: Artificial Heart
Inventor: Robert Jarvik
Purpose: The artificial heart is a medical invention used to create a permanent implant of a heart that performs all the necessary functions of a heart.

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Invention: Internet
Inventor: TCP/IP network by Robert E. Kahn, Vint Cerf, and others
Purpose: The internet was created to allow computers to speak the same language and connect networks.

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Invention: DNA Fingerprinting
Inventor: Alec Jeffreys
Purpose: DNA fingerprinting is another medical invention from the 20th century. It is used to detect variations or differences in human DNA.

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Invention: Digital Camera
Inventor: Fuji
Purpose: The digital camera was made so that cameras could save digital images on a removable flash card. The first one was able to hold 5-10 images at one time.

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Invention: World Wide Web
Inventor: Tim Berners-Lee
Purpose: The World Wide Web was made to create an interactive world with shared information in which people could communicate with one another.

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Invention: Digital Video Recorder
Inventor: TiVo and ReplayTV
Purpose: The digital video recorder was made to record television programs without the use of a videotape.