data types are defined as the data storage format that a variable can store a data to perform a specific operation. Data types are used to define a variable before its use in a program. Size of variable, constant and array are determined by data types.
SATA drives do not have jumpers, because they don't use the master/slave feature. They are connected to the motherboard, and they are ready to work.
The master/slave feature was used by IDE hard drives.15 years ago, most motherboards didn't have too many IDE slots to place more than 1 or 2 HDDs, the IDE cable allowed you to connect 2 drives to 1 cable, greatly increasing your computer's storage space.
It was recommended to set as master the drive connected directly to the motherboard, and the other one as slave.
