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How much is 72,200 gigabytes?

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It's about 700,000,000,000 times as much as a Magnetic Stripe Card.
In other words, the amount of a Magnetic Stripe Card is 0.000000000001000 times 72,200 gigabytes.
(maximum capacity; per ISO 7811 specification)
The storage capacity of a magnetic stripe on a credit or identification card is about 0.0000001000 gigabytes. According to legend, Forrest Parry, the IBM engineer who developed the first magnetic stripe card in 1960, was able to solve the problem of adhering the strip to the card after his wife suggested using an iron.
It's about 30,000,000,000 times as much as a Page of Text.
In other words, 72,200 gigabytes is 32,000,000,000 times the amount of a Page of Text, and the amount of a Page of Text is 0.0000000000310 times that amount.
(50 lines, 50 characters per line, ASCII encoding)
A 50-character-per-line, 50-line page of Latin alphabet text requires 0.00000230 gigabytes when digitally represented. The Google Books project, which has produced hundreds of millions of pages of digital text, used a robotic device to digitize over eight million titles at a rate of about 1,000 pages per second.
It's about 55,000,000 times as much as a Floppy Disk (3½-in).
In other words, 72,200 gigabytes is 52,574,400 times the amount of a Floppy Disk (3½-in), and the amount of a Floppy Disk (3½-in) is 0.00000001902070 times that amount.
(high density, IBM PC format)
Despite common reference to them as "1.44" megabyte (mB) disks, the actual capacity of the most common model of a 3&-in (8.9 cm) floppy disk is 0.00137329 gigabytes. At the height of their use 1996, there were an estimated five billion disks in use — nearly one for each person on Earth at the time.
It's about 50,000,000 times as much as a Digital Photo.
In other words, the amount of a Digital Photo is 0.0000000200 times 72,200 gigabytes.
(5.3 megapixels, JPEG compression, 100% quality, 24 bits/pixel)
A 5.3-megapixel digital camera photo requires about 0.0015 gigabytes of storage space. In 2010, it was expected that 90% of all professionally-taken photographs would be digital instead of film.
It's about 20,000,000 times as much as a MP3 Song.
In other words, the amount of a MP3 Song is 0.0000000500 times 72,200 gigabytes.
(a.k.a. MPEG-1 Audio Layer 3, a.k.a. MPEG-2 Audio Layer 3) (128 Kbps, "near-CD-quality"; 3 minutes duration; average)
A three-minute song of typical quality will be about 0.003 gigabytes when encoded into MP3 format. The song Tom's Diner by Suzanne Vega was used by AT&T-Bell Labs engineer Karlheinz Brandenburg to test the compression process and is considered the first MP3 song.
It's about 15,000,000 times as much as The Complete Works of William Shakespeare.
In other words, the amount of The Complete Works of William Shakespeare is 0.0000000710 times 72,200 gigabytes.
(ASCII, plain text)
The Complete Works of William Shakespeare would occupy about 0.0052 gigabytes when written in plain text without formatting. These works include 38 definitively-attributed plays — 11 tragedies, 17 comedies, and 10 tragedies — as well as 154 sonnets and numerous other poems.
It's about 100,000 times as much as a Compact Disc.
In other words, 72,200 gigabytes is 100,300 times the amount of a Compact Disc, and the amount of a Compact Disc is 0.000009970 times that amount.
(80-minute, 360,000 sector disc; "Red Book" specifications)
A typical, 80-minute capacity compact disc, commonly known as a 0.68360 gigabytes disc will actually hold 0.720 gigabytes of data. Such disks are 1.2 mm (0.047 in) thick.