Computer Math

Computer Math Bits Bytes Binary Numbering System Measurement

Exponent Power  Bytes
Kilobits 103 one thousand bits 1,000 bits.
Kbps 103 power bps 1,000 bits per second
KBps 103 power bytes/s 1,000 bytes per second
Megabits 106 one million bits 1,000,000 bits.
Mbps 106 power bps 1,000,000 bits per second
MBps 106 power bytes/s 1,000,000 bytes per second
Gigabits 109 one billion bits 1,000,000,000 bits.
Gbps 109 power bps 1,000,000,000 bits per second
GBps 109 power bytes/s 1,000,000,000 bytes per second
Kilobytes 103 one thousand 1,000
Megabytes 106 one million 1,000,000
Gigabytes 109 one billion 1,000,000,000
Terabytes 1012 one trillion 1,000,000,000,000
Petabytes 1015 one quadrillion 1,000,000,000,000,000
Exabytes 1018 one quintillion 1,000,000,000,000,000,000
Zettabytes 1021 one sextillion 1,000,000,000,000,000,000,000
Yottabytes 1024 one septillion 1,000,000,000,000,000,000,000,000
Googol 10100 ten duotrigintillion 100 zeros, no space here!
Googolplex 10Googolone googolplex Not in my lifetime!
* Bytes are measured in base 2 & counted in base 10
Prefix Power Name Decimal
milli- 10-3 one thousandth .001
micro- 10-6 one millionth .000001
nano- 10-9 one billionth .000000001
pico- 10-12 one trillionth .000000000001
femto- 10-15 one quadrillionth .000000000000001
atto- 10-18 one quintillionth .000000000000000001
zepto- 10-21 one sextillionth .000000000000000000001
yocto- 10-24 one septillionth .000000000000000000000001
 

*     According to IEEE Spectrum (August 1999), a leading magazine, for the Electronic and Computer industries, new standards have been proposed, to distinquish between powers of two and powers of ten. Kilo, is defined as 1000, but, in the computer industry, the value is 1024. Similiarly, Mega means 1 million, but is 1048576, by computer standards.

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Computer Math Bits Bytes Binary Numbering System Measurement