Year 8. Revision Exercise April Computer Science CARDINAL NEWMAN CATHOLIC SCHOOL. Student Name : Subject Teacher : Tutor Group:

Transcription

1 CARDINAL NEWMAN CATHOLIC SCHOOL Computer Science Year 8 Revision Exercise April 2017 Student Name : Subject Teacher : Tutor Group: Page 1 of 17

2 Section A: File Management 1. Develop some materials to advise new computer users on how to manage files and folders correctly. The first one has been done for you TASK WHY HOW Create a folder So that files from the same subject or project can be kept together In the window Click New Folder, then type a suitable folder name, usually a name that reflects the subject or project. Rename a file Move files to a different folder Put files together in a zip file Back up your files 2. Use the words below to fill in the missing gaps: Shortcuts CTRL-X Cut Drag Drag and drop Right GUI Multiple CTRL-V Paste There are two main ways you can move files using a _ The first method is called _ Simply open two folders in two different windows and then _ the file or files that you want to move from one window to the other. If you want to move lots of files, you can click and drag a box to select files at once. The second method involves using cut and paste. Select the file or files that you want to move and then click. Choose th option to in order to remove the file. Now go to the destination folder, right click and choose Page 2 of 17

3 3. Fill in the file management techniques with the instruction. Select several files Paste a file (keyboard shortcut) Cut a file (using the mouse) Cut a file (keyboard shortcut) Paste a file (using the mouse) Rename a file 4. Fill in these file extensions against the correct type of file. The first one has been done for you.docx.mov.jpg.exe.pptx.hex.html.bat.xlsx.mp3.pdf.mdb FILE TYPES Type of file This is an image file. It could be a photo or a drawing. File extension.jpg This is a document, but usually one that you can t edit. This is a web page and you would normally open it with a web browser. This is a popular type of video file. This is a file for storing music. You probably have lots of files of this type. This is a program, and when you double click it the program will load. This is a document that you can edit. You would open it with wordprocessor software. This is a spreadsheet document. You would open it with spreadsheet software. This is a slideshow. You would open this with presentation software. This is a batch file and includes a set of instructions that will run if you double click on it. You might not have seen this type of file very often. Microbit file A Microsoft database file Page 3 of 17

4 5. Which of these tasks are about file management? (Tick the box to select the right answer.) TASK FILE MANAGEMENT SOMETHING ELSE Copying a file Editing a file Writing a letter Deleting a file Moving a file to a different folder Updating the operating system 6. a) Write the steps carried out to create a shortcut using the mouse? b) Write the steps carried out to delete a file using the mouse? c) Write the steps carried out to copy a file using the mouse? d) List the 3 different ways to find and open files: e) List the 3 different ways you can back up files? 7. a) Write the steps carried out to password protect a PowerPoint file? Page 4 of 17

5 b) Why is it important to choose a strong password? c) Give example of a strong password? _ d) List some tips for a strong password? 8. In these images are some of the icons that you see when you open windows. State what these icons stand for and give a brief description of their purposes Page 5 of 17

6 Section B: E-Safety 9. a) Describe cyberbullying? b) What would you do if you were cyberbullied? _ c) What would you do if someone else was being cyberbullied? 10. a) What is the meaning of sexting? b) Is sexting a crime? YES NO c) Give reasons for your answer Page 6 of 17

7 11. a) List some of the information you should NOT give out on public social network? 12. What privacy settings would you apply on your social network profile? 13. a) Define the meaning of child exploitation? b) Explain the law for exploitation? Page 7 of 17

8 Section C: Operating System 14. a) Define an Operating System? _ b) List 5 examples of operating systems 15. Choose whether the statement is true or false. A mobile phone does not have an operating system. An operating system manages the hardware and software. If you update an application, you need to update the operating system. An operating system always uses a graphical user interface. A computer can only have one operating system. You cannot change the way the operating system behaves. An operating system includes a word processor and spreadsheet. An operating system manages computer security An operating system manages disk space The operating system checks for new hardware when the system starts True False Page 8 of 17

9 16. a) What does BIOS stand for? b) What is the purpose of BIOS? c) What is a Driver? d) What is a Translator? 17. a) GUI stands for and is the most common way for the _ to control a computer systems A GUI typically uses _, icons, menus and _. GUIs are considered to be _ to use, particularly because they allow end users to choose from lists of option. b) Define the meaning of Command Line Inreface (CLI)? _ c.) List 3 differences between GUI and Command Line? GUI CLI Page 9 of 17

10 16 a) Which of these is not an operating system? (Tick the box to select the right answer.) Linux Unix Excel Windows b) Which of the following is NOT a version of Linux? (Tick the box to select the right answer.). Fedora Mint Solaris Ubuntu c) Which of the following operating systems is specifically designed for mobile device? MS-DOS ios Unix Mac OSX d) For desktop or laptop computers the most common operating systems are: Tick your answers below: Android Windows Excel Linux Mac OS Access e) Match the Operating Systems (OS) to the description. Linux Mac OSX Windows Android DESCRIPTION Made by Microsoft OS Made by Google for mobile devices Designed specifically for Apple computers Open source various versions available Page 10 of 17

11 SECTION D FLOWOL 17. a) Define the term Algorithms? b) Using ruler and pencil draw the flowchart symbols and describe what each does? Name Flowchart Symbol Description of what it does Start/ Terminator Process Decision Input/Output Data flow c) FLOWOL uses an additional 4 symbols shown below. Name these symbols and describe their functions Page 11 of 17

12 18. Describe the algorithms shown in the flow charts below: a) Ordering a meal at a fast food outlet b) Central Heating Control System Page 12 of 17

13 c) Using the symbols drawn in Q17 (b), draw a flow chart to develop an algorithm for requesting a user s name and password to log in. Request username from user Request password from user Check if username and password are correct o If both match Open welcome page o Otherwise Request username and password again Page 13 of 17

14 19. a) Fill in the blanks Data in a computer is stored in _. Using binary _, we can represent pretty much anything we want using just and. c) Define an Integer d) Define the Binary system e) What is a binary digit f) Define the Decimal system BINARY TO DENARY 20. Convert these to Denary/Decimal to Binary a) Binary number = * 0 64 * 0 32 * 1 16 * 0 8 * 1 4 * 0 2 * 1 1 * 0 Answer b) Binary number = Answer Page 14 of 17

15 c) Binary number = Answer d) Binary number = Answer DENARY TO BINARY 21. Convert binary numbers to Denary(Decimal) Example Denary = 3 Calculation for answer (1 * 1) + (2 * 1) = Answer in binary Following the above example Convert these Denary numbers to Binary Calculation for answer Answer in binary Page 15 of 17

16 a) Denary = 15 Calculation for answer Answer in binary b) Denary = 15 Calculation for answer Answer in binary c) Denary = 15 Calculation for answer Answer in binary 22. Complete the blanks below: Denary Binary Denary Binary Page 16 of 17

17 Adding Binary Number Rules Carry 0 Carry 0 Carry Carry 1 1 Add the following Binary numbers: Page 17 of 17