$3\mathrm{.}16$

$$A bit of computer memory is some physical object that can be in two different states, often interpreted as

$0$

$$and

$1$

$.$

$$A byte is eight bits, a kilobyte is

$1024($

$=$

$2$

$^$

$10)$

$$bytes$,$ a megabyte is

$1024$

$$kilobytes$,$ and a gigabyte is

$1024$

$$megabytes$.$