Summer Half-Term Revision

Half Term Revision and Homework

1.       Revise the topic of the CPU

http://www.teach-ict.com/gcse_computing/ocr/212_computing_hardware/cpu/miniweb/index.htm

Revise Networking but in particular focus on LAN, WAN, EXTRANET, INTRANET and VPN

   

http://www.teach-ict.com/gcse_computing/ocr/215_communications_networking/networks/miniweb/index.htm

3.       You will be asked to write an algorithm/flow-chart

http://www.teach-ict.com/gcse_computing/ocr/216_programming/algorithms/miniweb/index.htm

Revise algorithms by completing the following task and posting your answer by way of a reply to this post:

Rail fares are based on the distance travelled:

 • fewer than 5 miles: £2.50

• 5–12 miles: £3.25

• more than 12 miles: £4.15

 A processor in the exit barrier calculates the fare. A discount of 10% is given for off-peak travel, i.e. after 10 am and before 5 pm on Monday to Friday or any time on Saturday and Sunday. The ID of the railway station at which a passenger starts their journey is recorded on their card when they swipe in. The processor in the exit barrier uses a data structure called ListOfStations to look up the distance travelled.

 Write an algorithm to calculate the cost of a passenger’s journey. It must read in the start of the journey from the card, calculate the fare and apply any discount. The information must then be displayed in a customer-friendly way. (8)