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2.1 ict systems and components

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  • 1. INFO 2
    Unit 2.1 – An ICT System and its components
  • 2. Specification
  • 3. What is ICT?
    What is a system?
    What is an ICT System?
    Define input
    Define process
    Define output
    What does an IPO diagram do?
    To consolidate you should be able to answer these questions…
  • 4. Use of technology for input, process, storage and transfer of data and the output of information
    What is ICT
  • 5. Any activity that involves input, processing and output
    E.g. Digestive system
    What is a system?
  • 6. A system that uses any form of digital technology, the output goes directly to a human being or into another systems
    A system that uses any form of digital technology to input and process data and out put the information which goes directly to a human or into another system.
    E.g. online holiday booking system
    What is an ICT System?
  • 7. Entering data into the computer or other device
    Examples:
    PIN number
    Barcode
    Phone numbers on a mobile phone
    INPUT
  • 8. Manipulating (calculating, querying, searching) the input data into information that is understandable to the user.
    Example:
    Identifying customer account and balance in relation to PIN
    Counting the number of items purchased and adding up the amount of money owed
    Searching the contacts in your mobile phone, identifying the correct entry and activating a call
    PROCESS
  • 9. Presenting the information to the user, it must have a context. It could be printed, displayed, heard or in another form.
    Example:
    Onscreen presentation of available balance or printed output
    Receipt printed for items purchased, showing individual item costs and total price
    Dialing tone initiated
    OUTPUT
  • 10. Input is capturing the data, process is converting the data into information and output is the information produced.
    Feedback might then be used to affect another input (into the same system or a different system)
    IPO diagrams can be drawn to illustrate this process in a system
    Input Process Output (IPO)
    FEEDBACK – Enough money in the account to withdraw
    INPUT
    PIN:4268
    PROCESS
    Identify PIN code and match to customer account.
    OUTPUT
    Customer details and available balance presented on screen
  • 11. What are the 6 components of an ICT system?
    Define Data and give an example
    Define Information and give an example
    Define Hardware
    Draw a diagram that illustrates parts of a computer system
    Define software
    Define procedures and give an example
    To consolidate you should be able to answer these questions…
  • 12. An example of an ICT System is an Management Information System (MIS).
    Large organisations use these systems at a strategic level (Principles, Managing Directors, Leaders of a business)
    They use them to help collate and analyse data from other systems e.g. HR Systems, Transaction Processing Systems
    What are the 6 components of an ICT system?
  • 13. What are the 6 components of an ICT system?
    MIS
    Electronic Register
    HR System
    • Username and Password required to login to HR System
    • 14. Must comply with DPA
    • 15. Data backed up off site
    • 16. Username and Password required to login to E1
    • 17. Presence and absence must be filled in by 8:15am
    • 18. Lates must be labelled with L
    • 19. Data is backed up on remote server
  • What are the 6 components of an ICT system?
    People
    Software
    Hardware
    Data
    Information
    Procedures
    MIS
    Electronic Register
    HR System
    • Username and Password required to login to HR System
    • 20. Must comply with DPA
    • 21. Data backed up off site
    • 22. Username and Password required to login to E1
    • 23. Register must be filled in by 8:15am
    • 24. Lates must be labelled with L
    • 25. Data is backed up on remote server
  • Data is raw facts and figures or a set of values, data has no meaning.
    Examination Results (DATA) : 3312, 2, 35, 3, 64, 4421, 2, 48, 3, 56
    What is Data?
  • 26. Information is data that has been processed and put into context to give it meaning
    Examination Results (DATA) : 3312, 2, 35, 3, 64, 4421, 2, 48, 3, 56
    The candidate number has been processed, the student found. The course code has been processed and matched to the student, the score for each course assigned to that student. This information can then be output in the form of a report or graph.
    What is information?
  • 27. Physical components of an ICT system e.g. Printer, scanner, monitor, server, switches
    In many systems data is transmitted from one computer to another.
    What is Hardware?
  • 28. Illustration of Hardware
    PROCESSOR
    (CPU)
    (includes internal storage RAM ROM)
    INPUT DEVICE
    OUPUT DEVICE
    BACKING STORE
    (external)
    COMMUNICATION DEVICE
  • 29. Computer Programs that make the hardware do something useful
    What is software?
  • 30. A series of actions or operations intended to achieve a result
    ICT Systems usually involve a number of procedures that have to be undertaken to make sure that the system can run smoothly.
    Examples
    A code of practice (guidelines and regulations set out by the company)
    Legal procedures (DPA, Computer Misuse Act)
    Backup procedures
    Security procedures
    Procedure to archive data
    Specific tasks generate procedures also
    What are Procedures?
  • 31. Testing of a system
    Sales
    Purchasing
    Finance
    Operations
    Internal and External personnel
    People
  • 32. Try drawing an IPO diagram that might be used in an ICT System.
    OR
    Choose a piece of software with which you are familiar with and draw an IPO diagram for a task you would use that software to perform
    Activity
  • 33. Page 100-101 of the Mott and Leeming text book
    Complete Case Study one (at the supermarket till) questions 1-8 (Page 101)
    For tomorrow’s lesson (This must be printed out prior to lesson NOT on your arrival to the lesson)
    Thursday detention if failure to complete OR failure to have printed out before the lesson
    Homework
  • 34. Past Paper Questions
  • 35. Past Paper Questions
  • 36. Past Paper Questions
  • 37. Page 99 and 100 of the McNee and Spencer Text Book.
    Read both Case Studies and answer the ‘End of sub-Topic Questions’ 4, 5 and 6 (Page 100)
    For tomorrow’s lesson (This must be printed out prior to lesson NOT on your arrival to the lesson)
    Thursday detention if failure to complete OR failure to have printed out before the lesson
    Homework