Theory question 102
File OrganisationPaper 2, Section A
(a) (i) Define the term file organization. (ii) Group the following file organization attributes under the appropriate heading as shown in Table I. (I) It does not support use of tapes. (II) Records are inserted one after the other. (III) It does not generate random keys to identify location. (IV) It generates random key to identify location.
(b) (i) State two safety rules observed in a computer laboratory. (ii) List three internet browsers.
Show the model answer
(a)(i) File organisation is the way records are arranged in a file on a storage medium so they can be stored and retrieved efficiently.
(ii) Sequential file organisation: (II) records are inserted one after the other; (III) it does not generate random keys to identify location. Indexed file organisation: (I) it does not support use of tapes; (IV) it generates a key (index) to identify location.
(b)(i) Any two: no eating or drinking in the lab; do not touch internal components; switch off properly; keep the lab clean; no running.
(ii) Any three: Google Chrome; Mozilla Firefox; Microsoft Edge; Opera; Safari.
Tapes can only be read in order, so they suit sequential files, not indexed ones.