Methods of record keeping a) Computer fi les have superseded many manual fi ling systems. Why should

Methods of record keeping a) Computer fi les have superseded many manual fi ling systems. Why should back-up copies of files be kept, and how can these be kept? b) State the purposes for which the following methods of record keeping are used i) Logbooks (other than your training logbook) ii) Forms and schedules iii) Photographic (pictorial and dye-line) iv) Drawings and diagrams c) Why is it important to keep a training logbook, and why should it be kept carefully, away from dirt and oil, so that it is always clean, neat and tidy?