What is 4 bit computing?

4-bit computing is the use of computer architectures in which integers and other data units are 4 bits wide. 4-bit central processing unit (CPU) and arithmetic logic unit (ALU) architectures are those that are based on registers or data buses of that size. A group of four bits is also called a nibble and has 2 4 = 16 possible values.

What is a group of 4 bits called?

A group of four bits is also called a nibble and has 2 4 = 16 possible values. 4-bit processors were widely used in electronic calculators and other roles where decimal math was used, like electronic cash registers, microwave oven timers, and so forth.

What is a bit in a computer?

Computers store information using bits. A bit (short for "binary digit") stores either the value 0 or 1 . What fits in a bit? A single bit can only represent two different values. That's not very much, but that's still enough to represent any two-valued state. Is a lightbulb on or off? Is a button enabled or disabled? Is the current time AM or PM?

What is bitwise XOR /exclusive?

Bitwise OR: The corresponding bit of the result is 1 if at least one input number has a 1 on this bit; otherwise, it is 0. Bitwise XOR /exclusive OR: The corresponding bit of the result is 1 if one and only one input number has a 1 on this bit; otherwise, it is 0.