What is the difference between comp and comp3

Question

Accepted Answer

Comp and Comp-3 are two different data types used in Mainframe systems.

Comp is a binary data type that uses one byte for each digit and can store positive and negative numbers.
Comp-3 is a packed decimal data type that uses half a byte for each digit and can store only positive numbers.
Comp is faster than Comp-3 but takes up more space.
Comp-3 is more space-efficient but slower than Comp.
Comp is used for arithmetic operations while Comp-3 is used for storage and display purposes.