
Chapter 3: The accounting equation and double-entry book-keeping
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6.4 Advantages and disadvantages of computerised systems
Advantages
The advantages of a computerised accounting system are as follows:
The data can be processed very quickly, freeing up the time of accounts
personnel
It is more accurate than a manual system, because a computer does not make
some mistakes that a human being might, such as adding up figures
incorrectly
The system can handle large amounts of data
In an integrated accounting system, one entry into the system can update
different ledgers and other files
Data can be analysed quickly and easily in a variety of different ways.
Repetitive tasks and calculations can be carried out quickly
Checking for errors can be made simpler and the computer can carry out
automatic control account reconciliations. (Control account reconciliations are
explained in a later chapter.)
Disadvantages
The disadvantages of a computerised accounting system are as follows:
The cost of buying and installing the system might be high.
Personnel must be trained to use the system.
Security checks are necessary to ensure that only authorised personnel can use
the system.
There is a risk of unauthorised access to computerised accounting records, by
a ‘hacker’ into the system.
There is a lack of ‘audit trail’ or visibility of transactions within the system.
In computerised accounts, more systems of coding are needed.
There is a need for accuracy in coding and putting data into the system. This
leaves scope for some human errors.
Even so, many business entities use computerised accounting systems, and there are
standard accounting software packages for computer systems of all sizes.
6.5 Main features of a computerised accounting system
Computerised systems vary in size. Large companies have large computer systems,
to handle the volume of their transactions and records. Small business entities may
use a small microcomputer-based system.
Computerised systems share the same general characteristics.
Ledgers are computer files, and each ledger contains accounts in electronic
form.
Data about transactions is entered into the computer system. There are various
methods of data input. In microcomputer-based systems, transactions are
commonly entered into the system by keyboard and mouse.