Processing Systems

Question 1

Describe how batch processing is used to produce monthly bank statements

Answer 1

Transactions are saved temporarily until end of month, all transactions are then used to to produce monthly statement

Question 2

Justify the use of real time processing for ATM’S

Answer 2

Each transaction is processed immediately, so that files are updated before next transaction takes place. This is necessary as transactions for an account must be updates immediately so account balance is correct and up to date. It also ensures PIN changes are updated immediately

Question 3

What is meant by multi user on-line

Answer 3

Several simultaneous users directly connected to computer system

Question 4

Explain why batch processing would not be suitable for flight reservations

Answer 4

Reservations could not be grouped together in batches before processing as information on which reservations made would be out of date and os reservations for the same seat could occur-double booking

Question 5

Describe the main features of real time processing

Answer 5

Data about events such as sales, payments or reservations are processed immediately as soon as data is collected to influence the next input.

Question 6

Describe the main features of touch screen technology.

Answer 6

A touch screen is an input and output device, menu options are displayed on screen, a stylus may be provided, laser beam grid could detect users finger as it cuts beam, and so the position or location being touched is calculated

Question 7

Describe main features of EFTPOS

Answer 7

Allows retailer to accept cards and customer to pay with cards, customers card us swiped, customer enters PIN, terminal encrypts PIN, terminal sends encrypted data to bank and if bank accepts transaction money is instantly removed for customer account.