This document is an activity sheet for a Year 7 computer studies class on storage devices. It contains 3 tasks: 1) calculating the number of characters that can be stored on a floppy disk based on 1 byte per character, 2) listing 2 advantages and 2 disadvantages of using a CD-ROM encyclopedia in the classroom, and 3) giving 2 reasons why DVDs are useful for storing films. The activity sheet is marked by Teacher Hjh Siti Noor Mazrah bte Awg Hj Suhut.