Question

what is a sector how is it useful​

Answer 1

❤The service sector makes an important contribution to GDP in most countries, providing jobs, inputs and public services for the economy. Trade in services can improve economic performance and provide a range of traditional and new export opportunities.❤

Answer 2

Step-by-step explanation:

On a computer diskette or hard disk, a sector is one of the "pie slices" the diskette or disk is divided into. Dividing the circular medium into pie slices is a way to organize it so that data can be located by the read/write heads of the drive. The diskette or disk is also divided into a number of concentric circles.