Why Computer Studies
- 2. Introduction/ObjectivesIn this topic we look at three things:
- 3. The core uses of ICT
- 4. How the response speed of ICT systems facilitates the use of feedback
- 5. The current limitations of ICTCore Uses of ICTThere are six things ICT is good at or sixcore uses of ICT that make it valuable to organisations:Repetitive CalculationComputers can carry out millions of repetitive calculations per second – something that would be very labour intensive and costly without computers.
- 6. Banking
- 7. Utility Billing (gas etc.)
- 8. Research
- 9. Payroll
- 10. With a computer it doesn’t matter if it is ten calculations or ten million – it costs the same.
- 11. Vast Storage CapacityComputer systems store 100s billions of data items. With the large capacity of modern hard drives, vast amounts of data can be stored electronically.
- 12. Banking records
- 14. Stock control
- 16. InternetSearching and SortingComputer databases allow us to retrieve related information quickly and accurately.
- 17. Banks
- 18. Billing Systems
- 19. Police databases
- 20. Online Retailing
- 21. Stock Control
- 22. Are there any other examples you can think of?Combining DataComputer analysis of data can show up patterns and trends not previously seen or impossible to see without vast processing power
- 24. Medical Research
- 26. Police databases (e.g. HOLMES 2)
- 28. Market ResearchCommunicationsIn recent years computers have revolutionised the world of communications so much a C was added to IT!!!
- 29. Internet
- 30. Cell Phones
- 33. Global Positioning System (GPS)
- 34. Don’t forget ICT doesn’t just refer to desktop computers!Fast Response TimesAllows ‘real time’ feedback
- 35. Retail Systems
- 37. Computer Games
- 38. Systems Control
- 40. Medical monitoringFeedbackFeedback = Output affects Input
- 41. Example 1 - Stock Control
- 42. Sufficient stock must be kept to satisfy customers but…
- 43. Storage of large levels of stock is expensive
- 44. The ICT system continually adjusts stock levels to make JIT orders of stock
- 45. Example 2 – Systems Control
- 46. Systems control on a car, aeroplane etc. continually responds to changes in its environment (measured by sensors)
- 47. Feedback is only possible because of the response speed of ICTDependence on ICTTechnology based countries are now almost totally reliant on computers
- 48. Even small scale failure can have devastating and costly consequences
- 49. Major systems/infrastructure couldn’t function without computers
- 50. Water, Gas, Electricity supply
- 52. Food/Fuel transport, Rail, Air, Road travel
- 53. Financial SystemsLimitations of ICTHardware is pushed to its limits
- 54. Processor speed, disk capacity, bandwidth
- 55. Think about video calls on MSN etc.
- 56. Software “bugs” and design flaws
- 57. Can make a system fail or behave in an unpredictable way
- 58. Systems may be poorly designed and don’t achieve what they set out to do. There are many examples of failure covered in ICT4
- 59. Computer output can only be as good as the input
- 60. GIGO!AI (Artificial Intelligence)AI is the goal of computer scientists but…
- 61. Many tasks that humans find easy are hardest to replicate in computers!
- 64. Adapting to new environments GCE Computer Studies 7010Cambridge O Level Computer Studies Syllabus code 7010Candidates take Paper 1, and either Paper 2 or Paper 3. Candidates must be entered for one of the following options:Option 1: Paper 1 and Paper 2Option 2: Paper 1 and Paper 3
- 65. How GCE - Computer Studies Is Helpful For Students?encourages students to develop lifelong knowledge and skills, including:confidence in the use of computersan appreciation of the broad range of computer applicationsa balanced understanding of the power and versatility of the computer and the benefits of its use alongside its limitations and potential disadvantages.Cambridge O Level Computer Studies is an ideal foundation for further study at A Level, and the skills learnt can also be used in other areas of study and in everyday life.
- 66. Continued ……develop the ability to solve problems using computing techniques
- 67. develop an awareness of the place of computing in society and issues computing raises in society
- 68. Components DescriptionPaper 1This is a compulsory question paper, consisting of short-answer and structured questions. Candidates must answer all the questions.
- 69. Continued…..Paper 2: Coursework (school-based assessment)The purpose of this project is to allow candidates to demonstrate their ability to undertake a complex piece of work, which is a computer-based solution to a significant problem, and to complete the solution and present their results. A complex piece of work is one which involves one of the following:integrating components of two generic application packages to form a single solutionusing some of the more advanced functionality of a single application packageusing modules and file handling in a coded solution.In all cases, candidates must fully document the solution.
- 70. Continued…..Paper 3: Alternative to CourseworkThis paper consists of short-answer and structured questions which refer to a given scenario. Candidates must answer all the questions. There is a maximum of 60 marks for this paper, but the actual weighting will be 25% to give it the same status as Paper 2 (Coursework).
- 71. monthly expenditure using a spreadsheet
- 72. a simple hotel booking system
- 73. a simple airline booking system
- 74. a simple stock control system (e.g. small shop selling CDs)
- 75. route planning for a company that has a maximum of 10 routes
- 76. automatic stock control systems
- 77. a car parts system
- 78. library systems
- 79. control systems (e.g. chemical plants)
- 80. holiday booking companyPrevious experience of candidates’ work indicates that the choice of certain projects involving games, quizzes, word-processing are unsuitable projects and do not provide the opportunity to achieve high marks.Example Applications!
- 81. RevisionUse your textbook and Internet sources to make supplementary notes on Capabilities and Limitations of ICT
- 82. Choose any real life situation or system e.g. preparing a gas bill. Which of the six capabilities identified in the diagram earlier in this presentation apply to the system