New Media

3.4 Arts, entertainment and leisure

A Compact Disc (also known as a CD) is an optical disc used to store digital data. Capacity is typically up to 700 MB (up to 80 minutes audio)

44,100 samples/channel/second x 2 bytes/sample x 2 channels x 74 minutes x 60 seconds/minute = 783,216,000 bytes

Blu-ray Disc (official abbreviation BD and official shortened name is Blu-ray) is an optical disc storage medium designed to supersede the DVD format. The standard physical medium is a 12 cm plastic optical disc, the same size as DVDs and CDs. Blu-ray Discs contain 25 GB per layer, with dual layer discs (50 GB) the norm for feature-length video discs and additional layers possible in the future.

DVD (Digital Versatile Disk) is an optical disc storage media format4.7 GB (single-sided, single-layer – common)8.5–8.7 GB (single-sided, double-layer)9.4 GB (double-sided, single-layer)17.08 GB (double-sided, double-layer – rare)Pre-recorded DVDs are mass-produced using molding machines that physically stamp data onto the DVD. Such discs are known as DVD-ROM, because data can only be read and not written nor erased. Blank recordable DVDs (DVD-R and DVD+R) can be recorded once using a DVD recorder and then function as a DVD-ROM. Rewritable DVDs (DVD-RW, DVD+RW, and DVD-RAM) can be recorded and erased multiple times.

Virtual reality (VR) is a term that applies to computer-simulated environments that can simulate physical presence in places in the real world, as well as in imaginary worlds.

Most current virtual reality environments are primarily visual experiences, displayed either on a computer screen or through special stereoscopic displays, but some simulations include additional sensory information, such as sound through speakers or headphones

Some advanced, haptic systems now include tactile information, generally known as force feedback, in medical and gaming applications.

3d Printing

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