Computer science

    Class : 8th
    Term 2 revision of
    1-1 marks, 3-3 marks and 4-4 marks questions

    Structure of Question Paper (Written Examination)

    1. The question paper will be divided into four parts (Part A, B and C).

    2. Part A will contain questions numbered 1 to 2.

    ·        In Question No. 1, 9 questions carrying 1-1 marks will be of multiple choice and fill-in-the-blank types.

    ·        In Question No. 2, 8 questions carrying 1-1 marks will be of full form, true/false, and shortcut keys types.

    3. In Part-A, there will be 5 questions carrying 3-3 marks short answers, question numbers 3 to 7, out of which two questions will have internal relaxation.

    4. In Part-C, there will be 2 questions carrying 6-6 marks, question numbers 8 to 9, which will have internal relaxation.

    Multiple choice questions(1-1 Marks)

    1. _____ font can be used to type in Punjabi.

    a) AnmolLipi                      b) Raavi                              c) Joy             d) All of the Above

    2. What is the full form of UNICODE?

    a) Union Code    b) Unified Code c) Universal Code             d) None of These

    3. Which of the following UNICODE font can be used for typing in Punjabi?

    a) AnmolLipi       b) Raavi                 c) Asees                         d) All of these

    4. Which of the following Phonetic font can be used for typing in Punjabi?

    a) AnmolLipi                      b) Raavi                              c) Asees                              d) All of these

    5. To use number pad,   should be kept ON

    a) Num lock        b) Caps Lock       c) Scroll lock       d) None of These

    6. International Networks of Computer is known as         

    a) ARPANET        b) INTRANET      c) INTERNET       d) ETHERNET

    7. WWW stands for_____.

    a) World Wide Web        b) World Web Wide        c) Wide World Web         d) Web World Wide

    8. A ____  is an online conversation over the Internet.

    a) E-commerce               b) Chatting                      c) WWW                         d) None of these

     9. ______ is the fastest way of sending mails.

    a) Telegram                     b) Letters                         c) ISP                              d) E-mail

    10. _______ is a device that connects a computer with telephone line.

    a) Modem           b) Telephone Wire           c) Mouse             d) Mobile

    11. _____ means our computer is receiving data from the Internet.

    a) Uploading       b) Downloading c) Surfing             d) None of these

    12. The opening page of a website is usually called _______.

    a) Home Page    b) Web Page                                    c) Main Page      d) None of these

    13. ______ indicates a state of connectivity.

    a) Offline             b) Online                                            c) Inline                               d) None of these

     14. _____ means to move from place to place (one website to another website) on the Internet to search for the topics of interest.

    a) Web Searching             b) Downloading c) Web Surfing   d) All of these

     15. _____is a form of electronic commerce which allows consumers to directly buy goods or services from a seller over the Internet using a web browser.

    a) Net Banking   b) E-Mail              c) Online Shopping           d) Mobile

    16. ______is a presentation graphics software

    a) PowerPoint    b) Word               c) Excel d) Paint

    17. A ______is the process of presenting a topic to an audience

    a) Word Processor           b) Slide  c) Presentation  d) Transition

    18. A ______ is a single page of presentation.

    a) Slide  b) Document      c) Sheet               d) None of these

    19. _______contains the current slide in our presentation.

    a) Outline Pane                 b) Content Pane               c) Ribbon             d) Slide Pane

    20. A _____defines the design and placement of different elements on a slide.

    a) Background Style         b) place holder   c) Slide Layout   d) Pattern

    21. A _______is a blend of two or more colours merging into each other.

    a) Theme                            b) Pattern            c) Background Style         d) Gradient

    22. _____ is the default view where we create, edit and design our slides.

    a) Normal view  b) Slide Show     c) Slide Sorter View         d) Reading View

    23. There are     default slide-background styles available in PowerPoint 2010.

    a) 48                                    b) 4                                      c) 12                                    d) 3

    24. The control allows us to zoom-in for a closer look at slide contents.

    a) Zoom                              b) Slide                 c) Normal View                                d) Gradient

    25. A ____is the visual and motion effect that occurs when we move from one slide to the next slide during a presentation

    a) Slide transition             b) Animation       c) Animation Scheme      d) Slide Show

    26. PowerPoint provides              types of animations

    a) Two                                b) Three                                             c) Four                                d) Five

    27. PowerPoint provides predefined collection of animation effects which are also known as _______.

    a) Slide transition             b) Animation       c) Animation Scheme      d) Slide Show

    28. Full Form of PDF is   

    a) Portable Data Format                 b) Portable Document Form

    c) Portable Data Form                    d) Portable Document Format

    29. We can save our PowerPoint presentation as a PowerPoint Show with             extension.

    a) .ppsx                               b) .ppt                                 c) .pptx                               d) .pdf

    30. Second generation used the _____ as their basic component.

    a) Vacuum Tubes             b) VLSI                  c) ULSI                 d) Transistor

    31. The generation of computers used VLSI circuits.

    a) First                                 b) Second                                          c) Third                               d) Fourth

    32. The third generation of computer used _______ in place of transistors.

    a) Integrated Circuits      b) Vacuum Tubes             c) ULSI  d) VLSI

     33. _____ is an upcoming branch in computer science which interprets means and methods of making computers think like human beings.

    a) Robotics         b) ULSI  c) Artificial Intelligence   d) Integrated Circuits

    34. ULSI technology is used in _____        generation of computers.

    a) Second           b) Third                     c) Fourth           d) Fifth

    35. A group of ____ bits is called byte
    a) 8                       b) 16                                                   c) 32                                    d) 64

    36. A bit or a binary digit may be represented by logical and       

    a) 0, 1                   b) 0, 0                                                c) 1, 2                                  d) 1, 1

    37. RAM stands for         

    a) Read Access Memory b) Random Access Memory          c) All of these     d) None of these

    38. ROM stands for        

    a) Read Only Memory     b) Random Only Memory             c) Read Open Memory    d) None of these

    39. Each track of a disk is subdivided into small portions known as            

    a) Sectors                         b) Area                                               c) Cell                                  d) Tape

    Very short answer type questions(1-1Marks)

    Q:1 How to Open PowerPoint?

    Ans: Start à All Programs à Microsoft Office à Microsoft PowerPoint

    Q:2 Shortcut Key to Save the Presentation in PowerPoint?

    Ans: Ctrl+S

    Q:3 Shortcut Key to Close PowerPoint?

    Ans: Alt+F4

    Q:4 Shortcut Key to Start Slide Show from the first Slide?

    Ans: F5 Function Key

    Q:5 What is the file extension of presentation file in PowerPoint?

    Ans: .pptx

    Q:6 Which term/word is used to Open PowerPoint using RUN box?

    Ans: POWERPNT

    Q:7 What is the Shortcut Key to Insert a New Slide?

    Ans: Ctrl + M

    Q:8 What is the shortcut key to Create a New Presentation?

    Ans: Ctrl+ N

    Q:9 Which tab is used to format text on the slide?

    Ans: Home tab

    Q:10 Which PowerPoint view is used to deliver our presentation to an audience?

    Ans: Slide Show view

    Q:11 Which bar contains the View buttons and Zoom Slider in PowerPoint?

    Ans: Status Bar

    Write full forms(1-1marks)

    1. WWW                  :              World Wide Web
    2. E Mail                   :              Electronic Mail
    3. MODEM              :              Modulator Demodulator
    4. ARPANET            :              Advanced Research Project Agency Network
    5. ISDN                     :              Integrated Services Digital Network
    6. DSL                       :              Digital Subscriber Line
    7. JPEG                     :              Joint Photographic Experts Group
    8. GIF                        :              Graphics Interchange Format
    9. BMP                     :              Bitmap Picture
    10. WMV    :              Windows Media Video
    11. PNG                      :              Portable Network Graphics
    12. ENIAC   :              Electronic Numerical Integrator and Computer
    13. IBM                      :              International Business Machines
    14. IC                          :              Integrated Circuits
    15. VLSI       :              Very Large-Scale Integration
    16. ULSI       :              Ultra Large-Scale Integration
    17. AI                          :              Artificial Intelligence
    18. MB         :              Megabyte
    19. GB          :              Gigabyte
    20. SRAM    :              Static Random-Access Memory
    21. PROM   :              Programmable Read Only Memory
    22. IR                          :              Instruction Register

    Write True or False(1-1marks)

    1. For typing, the keyboard is divided in two parts: one for the left hand and one for the right.(True)
    2. Touch typing is a technique by which we can learn typing with all fingers while looking at keyboard.(False)
    3. AnmolLipi font helps us typing in Punjabi.(True)
    4. We use our little finger for the spacebar.(False)
    5. Shift key is used to move down to a new line.(False)
    6. The result of any board or university can be seen online.(True)
    7. Offline means we are connected with the Internet.(False)
    8. A website has only a single web page.(False)
    9. Web search is the act of looking for webpages.(True)
    10. Each website has its own unique website address.(True)

    Short answer type questions(3-3marks)

    Q:1 What is Touch typing?

    Ans: Touch typing is a technique by which we can learn typing with all fingers, step by step, without having to look down at the keyboard. If all the time, we keep on looking for right keys on keyboard, then it slows down our typing speed a lot.

    Q:2 What are the different types of fonts used for typing in Punjabi?

    Ans: There are many different types of fonts available for typing in Punjabi. The fonts commonly used for Punjabi typing can be divided into two main types:

    1. Phonetic Fonts - Example: AnmolLipi font
    2. Unicode Fonts - Example: Ravi font

    Q:3 How to type in Punjabi language?

    Ans: Before start typing in Punjabi, we need to choose the appropriate font for typing in Punjabi. There are many fonts which are available for typing in Punjabi, for example: AnmolLipi, Raavi (Unicode Font), Asees, Joy etc. AnmolLipi font is a Phonetic Font which is one of the easiest fonts to learn typing in Punjabi. For typing with Unicode fonts, Raavi font is commonly used for typing in Punjabi.

    Q:4 Name any three fonts to type in Punjabi Language?

    Ans: There are many fonts for typing in Punjabi Language. Some of these are given below:

      1. AnmolLipi
      2. Raavi
      3. Asees
      4. Joy

    Q:5 What is PowerPoint?

    Ans: PowerPoint is a presentation graphics software. It is a part of MS Office. It allows us to create effective electronic slideshows. We can add animation effects etc. to the presentation in PowerPoint to make it more effective.

    Q:6 Write a short note on Presentation.

    Ans: Presentation is the process of presenting a topic to the viewers in an interesting way. The purpose of the presentation is to make the content easily understandable using pictures, text, animation etc. A presentation can have one or more slides. We can easily create presentation in the PowerPoint.

    Q:7 What is a Slide?

    Ans: A slide is a page of presentation. It is like a 35 mm film-based slide. The slide can be considered as a workspace in PowerPoint where we place the content to create the presentation. A presentation can have one or more slides.

    Q:8 Write the main Components of PowerPoint Window.

    Ans: Following are the main components of a PowerPoint window:

    1. Title bar
    2. Ribbons and tabs
    3. Outline / Slides tab
    4. Slide pane
    5. Notes pane
    6. Status bar
    7. View options

    Q:9 How will you play presentation for the audience in PowerPoint?

    Ans: PowerPoint provides a variety of ways to play our presentation for viewers. Here are some key ways:

    1. Press the shortcut key F5 to start the presentation from the first slide
    2. Press the shortcut keys Shift + F5 to start the presentation from the current slide.

    Q:10 Write about Slide Pane and Notes Pane in PowerPoint?

    Ans: Following is the description of Slide Pane and Notes Pane:

    1. Slide Pane: This pane shows the current slide in our presentation.
    2. Notes Pane: This pane is located at the bottom of the slide pane. This pane is used to type notes related to slide contents.

    Q:11 What is Slide Transition?

    Ans: Slide transitions are visual and motion effects. These effects are visible to us as we move from one slide to the next slide during the slide show of the presentation. We use the Transitions tab to apply transition effects to the presentation.

    Q:12 What is Animation?

    Ans: Animations are visual effects. These effects indicate movement on the objects during the presentation. These slide objects can be anything, such as text, pictures, charts, shapes, etc. We can use the Animation tab to apply animation effects to the presentation.

    Q:13 What are Animation Schemes in PowerPoint?

    Ans: PowerPoint provides a collection of predefined animation effects. This collection of animation effects is called Animation Schemes. We can use the Animation tab to implement animation schemes in the presentation.

    Q:14 How will you preview animations in PowerPoint?

    Ans: Following are the steps to preview the animation effects:

    1. Click on the Preview button of the Animation tab.
    2. Animation effects will begin to play for the current slide.

    Q:15 Write the name of four types of animations available in PowerPoint. Ans: PowerPoint provides four types of animations:

    1. Entrance
    2. Emphasis
    3. Exit
    4. Motion Paths

    Q:16 Write the main features of First-Generation computers?

    Answer: The main features of first-generation computers are:

    Ø  Vacuum tubes were used as basic processing components.

    Ø  Machine and Assembly languages were used in these generations.

    Ø  Size of these computers is very large.

    Ø  These computers produced a lot of heat.

    Ø  These computers were very expensive and difficult to use.

    Q:17 Which technology was used for Second Generation of Computers?

    Answer: Following technologies were used in this generation of computers:

    Ø  Transistors were used as basic processing components.

    Ø  The magnetic core was used as the primary memory.

    ØMagnetic tapes and disks were used as secondary storage devices

    Q:18 What is IC?

    Ans: IC stands for Integrated Circuits. A single IC contains several transistors, registers, and capacitors. IC was invented by Jack Kilby. These circuits were used to make third generation computers.

    Q:19 Write about Fourth Generation of computers?

    Ans: The time interval of fourth-generation computers was from 1975 to 1989. Computers of this generation used VLSI circuits. These circuits made it possible to build fourth-generation’s Microcomputers. Computers of this generation were very powerful, small, and reliable.

    Q:20 What is AI? Write the areas which are included in AI.

    Answer: AI stands for Artificial Intelligence. It is a new branch of computer science that enables computers to think and act like humans. AI includes some of the key areas:

    Ø  Robotics

    Ø  Game Playing

    Ø  Expert System

    Ø  Systems for understanding Natural Languages

    Q:21 Write the examples of First Generation of Computers.

    Ans: Some of the main Computers of First Generations are as follows:

    Ø  ENIAC

    Ø  EDVAC

    Ø  EDSAC

    Ø  UNIVAC I

    Ø  IBM 701

    Q:22 What is Memory?

    Ans: The memory of a computer is like the human brain. This is the storage area of the computer in which data and instructions are stored. Computer memory is divided into many smaller parts, called cells. Each cell has a unique memory address.

    Q:23 Write the names of different types of Memory.

    Ans: Memory can be classified into two main types:

      1. Internal Memory
      2. External Memory

    Q:24 What is Primary Memory?

    Ans: Primary memory is internal memory. This memory is also called main memory. The CPU has direct access to this memory. Computer cannot start without this memory. Primary memory can be classified into two main categories: RAM and ROM. The CPU can read data from these memories very quickly.

    Q:25 Write the name of various types of ROM.

    Ans: ROM stands for Read Only Memory. Following are the names of the different types of ROM:

    1. MROM (Masked ROM)

    2. PROM (Programmable ROM)

    3. EPROM (Erasable and Programmable ROM)

    4. EEPROM (Electrically Erasable and Programmable ROM)

    Long answer type questions(4-4marks)

    Q:1 What is MODEM? Also explain its types and speed.

    Ans: Modem stands for Modulator-Demodulator. This device is used for connecting with the internet. It enables a computer to transmit data over telephone or cable lines.

    Types of Modem: Modem are of two types:

      1. External Modem: It is a separate device which is connected with the computer using cables. Its speed is more than the speed of internal modem.
      2. Internal Modem: It is fitted inside the system unit. It is slower in speed as compared to external modem.

    Q:2 Explain the facilities provided by the Internet.

    Ans: Following are the common facilities provided by the internet:

    1. Internet provide us the facility to read news from various online new-papers.
    2. Internet is a major source of art and entertainment
    3. We can purchase many types of goods from home with the help of internet
    4. We can send and receive messages to anyone at any time with the help of internet
    5. We can book railway/air tickets from home with the help of internet
    6. We can do chatting with the help of internet
    7. Internet provides us the facility of video conferencing

    Q:3 What is E-mail? Write the advantages of using email.

    Ans: E-mail stands for Electronic mail. It is one of the most important services provided by the Internet. We can send or receive messages to/from anyone at any time using email. We can send or receive text, pictures or any type of files using emails.

    Advantages of Email: Following are the main advantages of using email:

      1. Cost: Cost given for use of internet is the only money given for using email.
      2. Speed: E-mail messages can reach at their destination within no time
      3. Convenience: We can send e-mail messages at any time according to our convenience.

    Q:4 Write a note on World Wide Web.

    Ans: World Wide Web is also known as Web or W3. It is a collection of huge information. It includes all the public websites which are connected with the internet throughout the world. Each website/page is given a unique name/address, which is known as URL (Uniform Resource Locator). We can access the information stored on the world wide web with the help of Web Browsers, such as Internet Explorer, Mozilla Firefox etc.

    Q:5 What are the main services provided by Internet? Explain briefly.

    Ans: In today's technological world, there are plenty of services that are provided by the Internet. Following are some of the important services provided by the internet:

    1. Email: We can send or receive messages worldwide using this service.
    2. Chatting: It is an online conversation over the Internet using text messages.
    3. E-Commerce: Doing business electronically with the help of internet is called e-commerce.
    4. Searching: We can search any type of information on the internet.
    5. Surfing: Process of using websites over internet is known as surfing
    6. Video Conferencing: It involves face to face conversation using video cameras connected to computers.
    7. File Downloading: We can download different types of files using internet.

    Q:6 Explain the Need of Information Technology?

    Ans: Following uses in different areas shows the need of Information Technology:

    1. IT in Business and Industry: Information Technology is required in Business and Industry to make the processing of work easier.
    2. IT in Homes: Information Technology is required in homes for the purpose of education, communication and entertainment.
    3. IT in Training: Information Technology is required for the training purpose in the field of schools, colleges and in many other areas.

    Q:7 Write the steps to view on line result.

    Ans: Following process can be followed to view the online result:

    1. First of all, open any web browser.
    2. Now, type the URL of website having result.
    3. Select the session and class details for which we want to view the result.
    4. Fill the details that are required to view the result-such as roll no, name of student etc.
    5. Now Click on the Search Result Link/Button

    Q:8 Write a note on Mobile Technology

    Ans: Mobile technology is a portable technology. This technology is a part of Information Technology. Mobile technology makes it possible to communicate with the places of the world that are very far from us. It has completely changed the face of communication. Following are some important uses of mobile technology:

      1. Education
      2. Surveys and Polling
      3. Banking
      4. Data Analysis

    Q:9 Explain about on-line shopping?

    Ans: Online shopping is a form of doing Electronic Commerce. It allows us to purchase goods and services from home using the internet. We can do online shopping at any time from any corner of the world. The bill payments of online shopping can be paid with the help of Credit/Debit Cards or Net Banking etc. The purchased items will be delivered to our home by the merchant. AMAZON, FLIPKART etc. are the popular e-commerce sites for online shopping

    Q:10 What is Net Banking? Explain?

    Ans: Net Banking is also known as Online Banking. Net banking has completely changed the way of working of banks. We can do many banking activities from home with the help of internet.

    Following are some of the common activities that we can do from home using Net Banking:

        1. We can get details of our bank accounts
        2. We can do bill payments of Electricity etc.
        3. We can transfer funds to other accounts from our own accounts

    Banks that provide the facility of net-banking are also known as Virtual Banks, Cyber Banks or Web Bank.