(a) List three criteria that are used in classifying file. (b) State: (i) two advantages and two disadvantages of computer files; (ii) three methods of file security.
Explanation
(i) Nature of content in a file (ii) Organisation method (iii) Storage medium. (b)(i) Advantages of Computer Files: - Fast to access. - More secured. - Less laborious. Moore reliable - Neatly modified. Disadvantages of computer files: Irregular power supply.- Data redundancy. Expensive to set up. - Cannot generate queries. Can corrupted or destroyed by virus, Hacker can take advantage of the file. (ii) Use of back-ups. Use of anti-virus. Password. Proper label of storage devices.
