Johnstone High School
Standard Grade Computing
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CDP Homework General 3
Name:
Email:
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1
What is your teacher's name?
Mr Carey
Mrs Smith
Mr McGivern
Mr Munro
2
Gerry uses a bank, which has a phone banking service.
When Gerry uses this facility he is asked for his name and password. Why is a password necessary?
KU
(1 point)
3
Give
two
advantages to customers of the phone banking system.
PS
(2 points)
4
Gerry requests that £50 be transferred from his cheque Account to his savings account. The phone operator uses a computer terminal and confirms to Gerry that his instruction has been processed. The operator informs him that the transfer has taken place and that he can withdraw the money from the savings account as soon as he likes. This is an example of interactive processing. Explain what interactive processing means.
KU
(1 point)
5
Why is interactive processing used here?
PS
(1 point)
6
Gerry uses a bankcard to pay directly for goods in shops using Electronic Funds Transfer (EFT). Give
two
advantages to Gerry of using Electronic Funds Transfer.
PS
(2 points)
7
Give
two
advantages to shops of using Electronic Funds Transfer.
PS
2 PS
(2 points)
8
The back of Gerry's bankcard has a magnetic stripe in it, which is read by a special reader in shops and at cash machines. One thing contained on the magnetic stripe is a
check digit
. What is a check digit and how does it work?
KU
(2 points)
Resource 1
9
Name
two
other pieces of information that are likely to be stored on the magnetic stripe.
PS
(2 points)