You are to scan disks for viruses before opening them.

1. Handle disks carefully.

2. Never touch their recording surfaces.

3. Never bend disks.

4. Keep disks and tapes away from magnetic fields, e.g. the top of a monitor.

5. Do not expose them to damp, extreme temperatures or dust.

6. Keep disks in envelopes, cassettes in cases.

7. Use a felt tip pen to write on disk labels.

8. Use good quality tapes, of a suitable length.

9. Make back-up copies of programs on disks or tapes.

10. Store disks in a suitable, secure place.