Correct option is C
A
binary number is a number that consists only of
0s and 1s. Among the given options,
101 is the only number that adheres to this rule.
Important Key Points:
1.
Binary System: The binary number system uses only two digits:
0 and
1. It is the base-2 numeral system and is used in computer systems.
2.
Other Options: Numbers like
201,
105,
106, and
130 are
decimal numbers because they include digits other than 0 and 1.
Knowledge Booster:
·
Decimal Numbers: The standard numeral system (base-10) uses digits from
0 to 9.
·
Binary in Computing: Binary is fundamental in computing because it represents data and instructions in the form of electrical states (on/off).