A data file is a program module containing instructions that tell your computer how to perform specific tasks.

________ are two lines on a slide that intersect at the center

A) Stacks B) Grids C) Line weights D) Guides

Answer the following statements true (T) or false (F)

1. Magnetic disks are the foundation of external memory on virtually all computer systems. 2. During a read or write operation, the head rotates while the platter beneath it stays stationary. 3. The width of a track is double that of the head. 4. There are typically hundreds of sectors per track and they may be either fixed or variable lengths. 5. A bit near the center of a rotating disk travels past a fixed point slower than a bit on the outside.