What do all these bytes represent?  bits and Bytes decoded!

bit is a single binary digit, zero or one.
byte is eight bits.
kilobyte is 1024 bytes.
megabyte is 1024 kilobytes which is 1048576 bytes.
gigabyte is 1024 megabytes which is about 1.07^10 bytes.
terabyte is 1024 gigabytes which is about 1.10*10^12 bytes.
petabyte is 1024 terabytes which is about 1.13*10^15 bytes.
exabyte is 1024 petabytes which is about 1.15*10^18 bytes.
zettabyte is 1024 exabytes which is about 1.18*10^21 bytes.
yottabyte is 1024 zettabytes which is about 1.21*10^24 bytes.
brontobyte is 1024 yottabytes which is about 1.24*10^27 bytes.
geopbyte is 1024 brontobytes which is about 1.24*10^30 bytes.

megabyte
= 1/1152921504606846976 yottabyte
= 1/1125899906842624 zettabyte
= 1/1099511627776 exabyte
= 1/1073741824 petabyte
= 1/1048576 terabyte
= 1/1024 gigabyte
= 1 megabyte
= 8 megabits
= 1024 kilobytes
= 8192 kilobits
= 1048576 bytes
= 2097152 nibbles (nibble is half a byte or 4 bits)
= 8388608 bits

gigabyte
= 1/1125899906842624 yottabyte
= 1/1099511627776 zettabyte
= 1/1073741824 exabyte
= 1/1048576 petabyte
= 1/1024 terabyte
= 1 gigabyte
= 1024 megabytes
= 8192 megabits
= 1048576 kilobytes
= 8388608 kilobits
= 1073741824 bytes
= 2147483648 nibbles
= 8589934592 bits

terabyte
= 1/1099511627776 yottabyte
= 1/1073741824 zettabyte
= 1/1048576 exabyte
= 1/1024 petabyte
= 1 terabyte
= 1024 gigabytes
= 1048576 megabytes
= 8388608 megabits
= 1073741824 kilobytes
= 8589934592 kilobits
= 1099511627776 bytes
= 2199023255552 nibbles
= 8796093022208 bits

petabyte
= 1/1073741824 yottabyte
= 1/1048576 zettabyte
= 1/1024 exabyte
= 1 petabyte
= 1024 terabytes
= 1048576 gigabytes
= 1073741824 megabytes
= 8589934592 megabits
= 1099511627776 kilobytes
= 8796093022208 kilobits
= 1125899906842624 bytes
= 2251799813685248 nibbles
= 9007199254740992 bits

exabyte
= 1/1048576 yottabyte
= 1/1024 zettabyte
= 1 exabyte
= 1024 petabytes
= 1048576 terabytes
= 1073741824 gigabytes
= 1099511627776 megabytes
= 8796093022208 megabits
= 1125899906842624 kilobytes
= 9007199254740992 kilobits
= 1152921504606846976 bytes
= 2305843009213693952 nibbles
= 9223372036854775808 bits

zettabyte
= 1/1024 yottabyte
= 1 zettabyte
= 1024 exabytes
= 1048576 petabytes
= 1073741824 terabytes
= 1099511627776 gigabytes
= 1125899906842624 megabytes
= 9007199254740992 megabits
= 1152921504606846976 kilobytes
= 9223372036854775808 kilobits
= 1180591620717411303424 bytes
= 2361183241434822606848 nibbles
= 9444732965739290427392 bits

yottabyte
= 1 yottabyte
= 1024 zettabytes
= 1048576 exabytes
= 1073741824 petabytes
= 1099511627776 terabytes
= 1125899906842624 gigabytes
= 1152921504606846976 megabytes
= 9223372036854775808 megabits
= 1180591620717411303424 kilobytes
= 9444732965739290427392 kilobits
= 1208925819614629174706176 bytes
= 2417851639229258349412352 nibbles
= 9671406556917033397649408 bits