A mathematical system of writing numbers using a specific base, such as the decimal or binary system.

hexadecimal system; a base-16 numbering system commonly used in computer science and programming

a binary digit, the basic unit of information in computing and telecommunications

the decimal system of numbering or measurement

The base-10 number system where each place value increases by a factor of ten; also used to describe electronics or circuits that operate in decades

to receive a promotion in official rank and an increase in salary; an idiom describing upward career mobility