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How Big Is a Terabyte?. Bits and Bytes. A bit is the smallest piece of information a computer can record. It means that an electrical signal is on (1) or off (0). A byte is 8 bits and has 256 possible combinations.
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Bits and Bytes • A bit is the smallest piece of information a computer can record. • It means that an electrical signal is on (1) or off (0). • A byte is 8 bits and has 256 possible combinations. • One byte is required to record the capital letter A from your keyboard (or any other single character.)
Envisioning a Terabyte • A Terabyte is one trillion bytes.* • In order to help picture what one trillion looks like, let’s imagine that one byte is one dollar. • We’ll start with a $100 bill for our demo (100 bytes.) *Actually, it’s 1,099,511,627,776 bytes, but close enough.
Ten Kilobytes = 10,000 Bytes • A packet of one hundred $100 bills is less than 1/2" thick and contains $10,000. • Ten Kilobytes would be equal to about ten paragraphs of text.
One Megabyte = 1,000,000 Bytes • Believe it or not, this next little pile is one million dollars (100 packets of $10,000). • 1 Megabyte could hold the equivalent of a small book.
100 Megabytes = 100,000,000 Bytes • While a measly $1 million looked a little unimpressive, $100 million is a little more respectable. • 100 Megabytes might hold a couple ofvolumes of encyclopedias.
One Gigabyte = 1,000,000,000 Bytes • And one BILLION dollars—now we're really getting somewhere. • 1 Gigabyte could hold the contents of about 10 yards of books on a shelf.
One Terabyte =1,000,000,000,000 Bytes • Next we'll look at ONE TRILLION dollars. • What is a trillion dollars? • Well, it's a million million. • It's a thousand billion. • It's a one followed by 12 zeros. • Ladies and gentlemen,I give you $1 trillion dollars...
One Terabyte =1,000,000,000,000 Bytes • And notice those pallets are double stacked.
One Terabyte Could Hold: • 3.6 million 300KB images • 300 hours of good quality video • 1,000 copies of the Encyclopedia Britannica • Ten Terabytes could hold the printed collection of the entire Library of Congress. That's a lot of data.
What Comes After Terabyte? • 1024 Bytes = 1 Kilobyte • 1024 Kilobytes = 1 Megabyte • 1024 Megabytes = 1 Gigabyte • 1024 Gigabytes = 1 Terabyte • 1024 Terabytes = 1 Petabyte • 1024 Petabytes = 1 Exabyte • 1024 Exabytes = 1 Zettabyte • 1024 Zettabytes = 1 Yottabyte • 1024 Yottabytes = 1 Brontobyte • 1024 Brontobytes = 1 Geopbyte
One PetabyteCould Hold: • 20 million 4-door filing cabinets full of text. • 500 billion pages of standard printed text.
One Exabyte Could Hold: • All of the words ever spoken by mankind.
One YottabyteCould Hold: • The entire World Wide Web. • It would take approximately 11 trillion years to download a Yottabyte file from the Internet using high-power broadband.