To e e Bat crrds do not get mixed up or theiramnnt may not be disturbed andiron orbrass rod, joining from obtund ofthe drawer to the a, nay be put through the cards. To avoiduuauthorisedtaerrng loc deride can also be provided for the rod .
1. Cards relating to any item of information can be readily traced.
2. It is fleihle system. New cards can be added or removed without disturbing the sequence or arrangement of other cards. In case of massive expansion cards can be put in additional trays or drawers.
3, The index is always up-to-date and 'alive'. Dead cards can be removed from the trays without disturbing tile arrangement
4. The cards can be arranged or rearrang d according to any c1sssif ication i.e., geographical, alphabetical or any other kind of classification : it. i: i:
5. For quick ret'ereuce, guide cards can
6. No doubt the initial cost of iTstallati.in is more but for big organization its operating cost proves mucl t mexpansive hi the tom run. It does not require frequent mplacclllent like a bound book index, so it proves economical in the IGng ran.
7. It call be put to a earl eta of user. Libraries use it for catalogue of books while bank :sc it for specimen sieranre of customers erp office • Manager can use it for kcepin record of employees etc. Different ki lids of particulars can be entered on the cards abo tat C- .; 51 omers or corresponder ts.
8. Each card can be rules and primed accGrdii e to needs :' -die loser
9. More then one person can refer to :he it 2 at the snmc me. Fo I example, one person may be loo al the trav of alphzte! A and other may be loo at the tray of alphabet t1
10. Special attention can be paid to some n Inca h. its by plating tabs OD cards conceiving them Fo. example, tabs or Lips of different colGurs can be put on the cards of defaulting debtors.
J I. Wllile blank pages, for sunup envies, hat e to be left in the bo,u-td - book index, there is no need of inserting bland mods in the trays. Dernerits
1. It is a blind system i.e., for locating a particular card all earlier cards havoc to be sca mu n.. It takes P. IGmeY tune to loc tte a particr lar index card as compared to Usable reference syste:r:.
2. If the cards are loGseiy placed in trays or drawers. iiithont inserting iron rod oh them, they can be mislaid OT lo.nt.
3. By constant use the c 7rc1s heconre corn out and 'dog eared".
4. If cards are used for sortie important purposes like maintaining accounts Of customers' cash t.TarsactiGns, there arc changes of 3rudulent.suhsfitufio 7 and concealment, etc.
5. It is uneconomical ror small oftlces, the initial CGst of installation is comparatively high.