Informacije :: Nauka ~ Tehnika ~ Military

---the human brain can store 10 terabytes of information---

A bit is the information in one binary decision - a no or yes, a 0 or 1.
5 bits: approximate information in one letter of the Roman alphabet.
A byte is 8 bits.
A kilobyte is about a thousand bytes (actually 210 of them).
2 kilobytes: a typewritten page.
100 kilobytes: a low-resolution photograph.

A megabyte is about a million bytes (actually 220 of them).
1 megabyte: a small novel or a 3.5 inch floppy disk.
2 megabytes: a high-resolution photograph.
5 megabytes: the complete works of Shakespeare.
100 megabytes: one meter of shelved books.
500 megabytes: a CD-ROM.

A gigabyte is about a billion bytes (actually 230 of them).
1 gigabyte: the human genome, or a pickup truck full of books.
20 gigabytes: a good collection of the works of Beethoven.
100 gigabytes: a library floor of academic journals.

A terabyte is about a trillion bytes (actually 240 of them).
2 terabytes: an academic research library.
6 terabytes: all academic journals printed in 2002.
10 terabytes: the print collections of the U.S. Library of Congress.
40 terabytes: all books printed in 2002.
50 terabytes: all mass market periodicals printed in 2002.
60 terabytes: all audio CDs released in 2002.
80 terabytes: capacity of all floppy discs produced in 2002.
140 terabytes: all newspapers printed in 2002.
170 terabytes: the searchable portion of the World-Wide Web in 2002.
250 terabytes: capacity of all zip drives produced in 2002.

A petabyte is about 1015 bytes (actually 250 of them).
1.5 petabytes: all office documents generated in 2002.
2 petabytes: all U.S academic research libraries.
6 petabytes: all cinema release films in 2002.
20 petabytes: all X-ray photographs taken in 2002.
90 petabytes: the „Deep Web” in 2002 - includes private databases, controlled-access sites and so on.
130 petabytes: capacity of all audio tapes produced in 2002.
400 petabytes: all photographs taken in 2002.
440 petabytes: all emails sent in 2002.

An exabyte is about 1018 bytes (actually 260 of them).
1.3 exabytes: capacity of all videotapes produced in 2002.
2 exabytes: capacity of all hard disks produced in 2002.
5 exabytes: all the words ever spoken by human beings.
6 exabytes: information in the genomes of all the people in the world.

Ali ljudski mozak ima još jednu sposobnost, vise dimenzionalnost, cime je kolicina informacija koju može sacuvati neogranicena.