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*’compact disc’ (CD) is a ‘digital optical disc data storage format’, co-developed by “philips” + “sony”*
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(the ‘format’ was originally developed to ‘store’ and ‘play’ only ‘sound recordings but was later adapted for ‘storage’ of ‘data’ (aka ‘CD-ROM’))
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(several other formats were further derived from these, including…)
“write-once audio and data storage”
(CD-R)
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“rewritable media”
(CD-RW)
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“video compact disc”
(VCD)
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“super video compact disc”
(SVCD)
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“photo CD”
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“pictureCD”
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“CD-i”
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“enhanced music CD”
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(‘audio CD players’ have been commercially available since october 1982, when the first commercially available ‘CD player’ was released in “japan”)
(“standard CDs” have a ‘diameter’ of ‘120 millimeters’ (aka ‘4.7 inches’) and can hold up to about ’80 minutes’ of ‘uncompressed audio’ or about ‘700 MB’ of ‘data’)
(the “mini CD” has various ‘diameters’ ranging from 60 to 80 millimeters (aka ‘2.4 inches’ to ‘3.1 in’); they are sometimes used for ‘CD singles’, storing up to ’24 minutes’ of ‘audio’, or delivering ‘device drivers’)
(at the time of the technology’s introduction in ‘1982’, a ‘CD’ could store much more ‘data’ than a ‘personal computer hard drive’, which would typically hold ’10 MB’)
*damn*
(“talk about a ‘microprocessors’!”)
(by ‘2010’, ‘hard drives’ commonly offered as much ‘storage space’ as 1 thousand CDs, while their ‘prices’ had plummeted to ‘commodity level’)
(in ‘2004’, worldwide sales of “audio CDs”, “CD-ROMs” and “CD-Rs” reached about ’30 billion discs’)
(by ‘2007’, ‘200 billion CDs’ had been sold worldwide)
(from the ‘early 2010s’, ‘CDs’ were increasingly being replaced by other forms of ‘digital storage’ and ‘digital distribution’, with the result that ‘audio CD sales rates’ in the ‘united states’ have dropped about 50% from their ‘peak’; however, they remain one of the ‘primary distribution methods’ for the ‘music industry’)
(in ‘2014’, revenues from “digital music services” matched those from “physical format sales” for the first time)
(american inventor “james t russell” has been credited with inventing the first system to record ‘digital information’ on an ‘optical transparent foil’ that is lit from behind by a ‘high-power halogen lamp’)
(russell’s ‘patent application’ was first filed in ‘1966’, and he was granted a patent in ‘1970’)
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(following ‘litigation’, sony + philips licensed russell’s patents (then held by a canadian company (‘optical recording corporation’) in the ‘1980s’)
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👈👈👈☜*“PHYSICAL MUSIC PLAYERS”* ☞ 👉👉👉
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💕💝💖💓🖤💙🖤💙🖤💙🖤❤️💚💛🧡❣️💞💔💘❣️🧡💛💚❤️🖤💜🖤💙🖤💙🖤💗💖💝💘
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*🌈✨ *TABLE OF CONTENTS* ✨🌷*
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🔥🔥🔥🔥🔥🔥*we won the war* 🔥🔥🔥🔥🔥🔥