METHODS OF INFORMATION/DATA PROCESSING
1. Manual Method :
Involves operations performed by a clerk assisted, if defined, by specific aids such as a
pocket calculator or adding machine etc. This method of processing is only suitable in cases where there is
no emphasis on the specific period of time the work must be completed. The processing is simple and in
most cases, the employment of more hands will solve the problem of time constraint. Example is the
updating of handwritten ledger records.
2. Mechanical Method:
Involves operations that are performed by machine consisting of a keyboard but
which are actuated by depressing appropriate keys by an operator. Example is the posting of lodgements
and withdrawals on the personal customer's ledger using an accounting machine.
3. Electronic Method:
Is more or less like the mechanical method except that in this case the machine being
used is electronic and may have optional peripheral devices that are attached to it. It can be used for many
accounting procedures including payroll, stock schedules and ledger updating. These days computers are
being used. Data for input are entered through keyboard, card reader, optical character/mark reader, tape
reader etc, while processed data are printed or displayed or stored on auxiliary storage. Its processing speed
is high and can therefore handle quite a large amount of data. Very suitable for processing tasks that are
repetitive in nature.
Advantages of Manual system
1. Initial cost of setting up is cheaper.
2. Major training is not needed.
3. Economical for small business.
Advantages of computerised system
1. Speedy operation.
2. Automatic operation.
3. Accurate information.
4. Varied management information
5. Random enquiries on stored data can be easily performed.
6. High productivity and improved service.
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