Mainframe Tester Interview Questions and Answers

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 purpose...read more