Task One Automated Teller Machines :: Computer Science

Task One Automated Teller Machines1. See diagram over page for Input and output devicesThis kind of porthole is an interactive interface with simplytons. Ithink this would be improved considerably and the ways that I thinkwill be improved by more(prenominal) security on the machines. I think they willhave devices like retina s backs, voice activation and thumbprints. Atthe moment the only security is PINS and accounts but they can be stolenand I think they will improve the security more.2. The impact for a customer obtaining cash is called transactionprocessing in corporeal period.This kind of processing is called transaction processing. If the cashwithdrawal is required, the customer enters the amount they want fromthe machine. This is then checked against the balance of the accountand if funds are functional of the account, the machine dispensesmoney. Also at the same the amount from the account is subtracted fromthe balance on the customers record on the bank computer. Whe n itsfinished the card releases back the card to the customer.IMAGEOther services are available are withdrawal of cash, orderingof statements, requests for new chequebooks and obtaining the balanceof the account.AdvantagesDisadvantagesTo the BankEmploys fewer peopleHigh level of security essentialIt is cheaper than paying staffHackers could break into the machinesLess need to build banks and money could be utilise elsewhereEmployees loose their jobs.To the customerIt is fast.Credit cards could be stolenIt can be accessed anytimeThe magnetic strips can be damaged by the ATMThey can get it anywhereThe card has to be replaced from time to time3. Bank cards, credit and debit cardsDiagram front and backPIN stands for Personal Identification Number, it acts like apassword, and the user enters it to the ATM keypad to verify that theyare the account holder. The PIN helps to reduce fraud.The information stored on the magnetic strip is account numbers, banksort code, system number, cheque figure of speechTask two - Cheque clearingThere are three sets of numbers printed along the bottom of the chequeusing magnetic ink and machines can automatically read these numbers.MICR stands for Magnetic Ink Character Recognition, it works byinputting special ink onto cheques and the ink then is magnetised. Thelimits are that very few characters could be recognised but it can beread quite fast. The special ink then is recognised by using a processcalled MICR. Its used on cheques because it has high security and ifthe special has been tampered on, the computer can still read the dataon the special magnetised ink.The cheque clearing process is called Transaction Processing it