Computer science

    Class : 10th
    Term 2 revision of
    1-1 marks, 3-3 marks and 6-6 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, 12 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 6 questions carrying 3-3 marks each from question numbers 3 to 8, out of which two questions will have internal relaxation.

    4. In Part-C, there will be 2 questions carrying 6-6 marks each from question numbers 9 to 10, which will have internal relaxation.

    Multiple choice questions(1-1 Marks)

    1. Which of the following is an example of office tool?

    a. MS Word                       b. Google Slides c. MS PowerPoint             d. All of these

    2. Which of the following is the example of Word Processor?

    a. Google Docs  b. Google Sheets              c. Google Drive                 d. MS Excel

    3. Which of the following is not an example of Google’s Online Office Tool?

    a. Google Slides b. Google Docs                 c. OpenOffice Writer       d. Google Sheets

    4. Which software's are designed to operate, control and extend the processing capabilities of the computer itself?

    a. Application Software  b. System Software         c. Google’s online office tools     d. All of these

    1. ____is a set of programs that enable a user to perform some specific task.

    a. Software         b. Hardware       c. Language Translators  d. Prog. Languages

    6. After setting the option “Anyone with the link”, we can set one of the following access levels using the drop-down menu for sharing the file created in Google Docs?

    a. Viewer           b. Commenter                   c. Editor            d. Any of these

    1. ____is a collection of websites or web pages.

    a. World Wide Web         b. Web Sites         c. HTML          d. Hyper Text

    1. ____is the text which contains links to other web pages.

    a. Static Text      b. Hyper Text                    c. Plain Text                       d. All of these

    9. To view the output of HTML program, we have to open it in the           

    a.Text Editor       b. Word Processor            c. File Explorer                  d. Web Browser

    1. ____are used to provide additional information about HTML tags.

    a. Paired tags     b. Unpaired Tags              c. meta-data                      d. Attributes

    1. __tag is used to create scrollable texts and images within a web page.

    a. <title>            b. <center>                  c. <marquee>     d. <sup>

    12. Which of the following list is not used in HTML documents?

    a. Bulleted List       b. Numbered List             c. Ordered List   d. Data List

    13. Which of the following tag is used to define the list items in the ordered and unordered lists?

    a. <OL>                  b. <UL>                           c. <LI>               d. <DT>

    1. ______tag is used to create a table row in the HTML document.

    a. <Row>               b. <Table Row>             c. <TR>               d. <R>

    15. By using        attribute, we can define space between table cells.

    a. Cellspacing     b. Cellpadding                   c. Rowspan           d. Colspan

    16. We will use       attribute if we want to merge cells of two or more rows into a single cell.

    a. Cellspacing        b. Cellpadding               c. Rowspan            d. Colspan

    1. ____ URL gives complete location to a resource (file).

    a. Relative              b. Absolute                  c. Internal               d. External

    18. Which tag is used to add an image in HTML document?

    a. <picture>           b. <pic>                      c. <image>             d. <img>

    19. Which of the following attribute is not used by anchor tag in HTML?

    a. href                    b. src                            c. target                d. title

    20. A                     link is underlined and shown in purple color by default.

    a. Unvisited Link               b. Visited Link    c. Active Link      d. None of these

    21. Which HTTP method is used to send form-data to web server?

    a. GET and SET   b. GET and POST               c. POST and SEND            d. GET and SEND

    22. Which of the following form control is used to accept multiple lines of text in the web page?

    a. Textbox             b. Dropdown Box            c. Password Field                d. TextArea

    23. An operating system is a       

    a. Terminal          b. System Software         c. Application Software  d. Processor

    24.         refers to keeping several programs in different parts of the main memory at the same time and executing them concurrently.

    1. Multi-application       b. Multi-processing         

    c. Multi-programming         d. Multi timing

    25. The users of               operating system do not interact with the computer directly.

    a. Batch Processing System  b. Time Sharing System  c. Network Operating System      d. Distributed system

    26. A      acts as a security guard between the internet and our local area network.

    a. Operating System        b. Processor                      c. Firewall            d. Security Threat

    27. GUI stands for           

    1. Graph User Interface                                                   b. Graphics User Interface

    c. Graphical User Interface                                         d. None of these

    28. Programs that can be used to create books, magazines, newspapers, flyers, pamphlets, and many other kinds of printed documents, are called?

    a. Desk Publishing          b. Desktop Publishing          c. Top Publishing               d. Publishing

    1. ____enables us to see on the display screen exactly what will appear when the document is printed.

    a. WYSWJKI         b. WKSWUG      c. WUSIWUG      d. WYSIWYG

    30.         are external output devices that take data from a computer and generate output in the form of graphics / text on a paper.

    a. Frames              b. Printers         c. Fonts                               d. Plotters

    1. ___are rectangular areas which are meant for inserting graphics and text.

    a. Rectangles      b. Frames            c. Structure                         d. Fonts

    1. ______is a visual representation of objects

    a. Charts            b. Graphics        c. Frames                       d. Fonts

    33. Which of the following is not an example of Desktop Publishing Software

    a. Corel Draw     b. Word Processor           c. GIMP            d. Adobe Photoshop

    34. Choose an application used to design and produce attractive advertising and promotional material.

    a. Word Processor            b) Spreadsheet                  c) Publisher             d) Presentation

    1. ____is the predefined model of publication?

    a. Template                   b) ClipArt             c) Object                 d) Style

    36.Now a days, brochures are also available in electronic format and are called  

    a. e-brochures                   b) m-brochures            c) t-brochures                   d) k-brochures

    37.         is stationery with a printed heading. The heading usually consists of a name, an address, and a logo.

    a) Letterhead                    b) Program             c) Invitation Card                  d) Catalogue

    38. What are longer than resumes – at least two or three pages?

    a. Curriculum Vita (CV)                  b) Banner            c) Invitation Card          d) Catalogue

    Fill in the blanks(1-1 Marks)

    1. Application Software's are also known as ____________________

    Answer:- End-User Applications

    2. System software's are usually written in _________ Computer Programming Languages.

    Answer:- Low-Level Programming languages

    3. Various types of Office Tools also fall in the category of ______________ software's.

    Answer:- Application Software's

    4. _____________ is a software that allows users to process and analyze tabular data easily.

    Answer:- Spreadsheet

    5. ________________ is a free online word processor.

    Answer:- Google Docs

    6. Paired Tags are also known as ______________ tags

    Answer: - Container Tags

    7. ________ part contains all those contents that are displayed on the web page to the end user.

    Answer: - Body

    8. <! DOCTYPE html> tag describes the _________ of HTML.

    Answer: Version 5

    9. _____________ tag is used to insert a single line break.

    Answer: <br>

    10. ______________ tag is used to add a subscript text to the HTML document.

    Answer: - <sub>

    11. ___________ attribute is used to set the background image for the HTML document.

    Answer: - background

    12. In HTML documents, we can create and use __________ different types of lists

    Answer: - Three

    13. In _________ list, all the list items are marked with bullets.

    Answer: - Unordered List

    14. A ___________ list is a list within a list.

    Answer: Nested

    15. ________ tag is used to define the Table Headings.

    Answer: <TH>

    16. We can set the vertical alignment of only cell-contents using ___________ attribute.

    Answer: Valign

    17. __________ represents the distance between the cell border and the content of a cell.

    Answer:- Cell padding

    18. In relative paths, ______ delimiter points to the parent folder of the current working file.

    Answer:- ./

    19. Every image tag has a _________ attribute which tells the browser where to find the image that we want to display.

    Answer:- src

    20. Named anchors are also called ___________________.

    Answer:- Bookmarks

    21. Form submission with ___________ HTTP method cannot be bookmarked.

    Answer:- POST

    22. ____________ is nothing but prioritizing tasks for website completion.

    Answer:- Planning

    23. The little CPU time given to each user in the Time-Sharing operating system is known as                      .

    Answer:- Time slice

    24.           refers to a mechanism or a way to control the access of programs, processes, or users to the resources defined by a computer system.

    Answer:- Protection

    25.         is a program that acts as an interface between the user and the computer hardware.

    Answer:- Operating system

    26.                        replicate itself and infects the files and programs of our PC and can make them non-functional.

    Answer:- Computer viruses

    27.         is the use of the computer and software to create visual displays of ideas and information.

    Answer:- Desktop publishing

    28. A          is the space between the main content of a page and its edges.

    Answer:- Margin

    29. A         is a graphical representation of text that may include a different typeface, point size, weight, colour, or design.

    Answer:- Font

    30. In Graphics software,                are the different levels at which one can place an object or image file.

    Answer:- Layers

    31. In                   Printers, characters or graphics are printed by striking print-head on the paper.

    Answer:- Impact

    32. Advertising means how a company encourages people to buy their  , services or ideas.

    Answer:- Products

    33. A          is a printed report containing news or information of the activities of a business or an organization.

    Answer:- NewsLetter

    34. Business cards are cards bearing business information about a            or         .

    Answer:- Person, Organisation

    35. A resume provides a summary of our             , work history, credentials, and other accomplishments and skills.

    Answer:- Education

    36.         is the most common document requested of applicants in job applications.

    Answer:- Resume

    Write full forms(1-1marks)

    1. <b>                       :              Bold
    2. <i>                         :              Italic
    3. <u>                       :              Underline
    4. <s>                        :              Strikethrough
    5. <p>                       :              Paragraph
    6. <tt>                       :              Teletype Text
    7. <hr>                      :              Horizontal Ruler
    8. <br>                      :              Break Line
    9. <sup>                   :              Superscript
    10. <sub>                   :              Subscript
    11. <OL>                     :              Ordered List
    12. <UL>                     :              Unordered List
    13. <DL>                     :              Definition List
    14. <LI>                      :              List Item
    15. <DT>                     :              Definition Title
    16. <DD>                    :              Definition Data
    17. <TR>                     :              Table Row
    18. <TH>                     :              Table Heading
    19. <TD>                     :              Table Data
    20. URL                       :              Uniform Resource Locater
    21. GIF                        :              Graphics Interchange Format
    22. PNG                      :              Portable Network Graphics
    23. JPEG                     :              Joint Photographic Expert Group
    24. HREF                     :              Hypertext Reference
    25. SRC                       :              Source
    26. <A>                       :              Anchor Tag
    27. <IMG>                 :              Image Tag
    28. DTP                       :              Desktop Publishing
    29. WYSIWYG           :              What you See Is What You Get
    30. 3D                         :              Three Dimensional
    31. GIMP                   :              GNU Image Manipulation Program
    32. DMP                     :              Dot Matrix Printer

    Write True or False(1-1marks)

    1. In tightly coupled systems, there is a single primary memory, which is shared by all the processors. (True)

    2. A Multi-User Operating System is a system that allows only one user to access a computer system at one time. (False)

    3. Confidentiality ensures that data exchanged is not accessible to unauthorized users. (True)

    4. Firewall cannot block unauthorized access to our PC. (False)

    5. Anti-malware is a computer program used to prevent, detect, and remove malware. (True)

    6. A Template is a tool used in Publisher to help us easily create basic publication. (True)

    7. Before exiting Publisher, we should not close all the publications. (False)

    8. A compliment card is a piece of card or high-quality paper used for advertising purpose. (False)

    9. Certificates of achievement, merit, and honor given to a person can be proved powerful tools for him when given at the right time and presented in the right way. (True)

    10. Brochures are promotional documents, primarily used to introduce a company, organization, products or services to the public. (True)

    Short answer type questions(3-3marks)

    Question:1 Define the term Office Tools?

    Ans: Those software's which are designed to make computer users more productive and efficient at their workplace, are known as Office Tools. Office Tools includes some application software's such as Word Processors, Spreadsheets, Presentation software's etc. These tools help users to save their large amount of time and effort.

    Question:2 What is Application Software?

    Ans: Applications software's are also known as End-User Applications. These software's are mostly designed and developed to perform specific tasks for users. These software's are usually written in various types of High-Level Programming languages. Application software cannot run without the support of Operating System. MS Word, Excel, PowerPoint etc. are the examples of Application Software's.

    Question:3 Write some examples of Word Processor Tools?

    Ans: Examples of Word Processor Tools/Software are given below:

    1. Microsoft Word
    2. Google Docs
    3. OpenOffice Writer
    4. WordPad
    5. Word Perfect

    Question:4 Write about Multimedia Tools.

    Ans: Multimedia is a form of communication that combines different forms of contents such as text, audio, images, animations, or video into a single presentation. Multimedia tools allow users to create multimedia applications/contents using various forms of contents. Adobe Flash, Media Players and Real players are the examples of multimedia tools.

    Question:5 Explain Google Docs.

    Ans: Google Docs is a free online word processor. It is a Web-based document management application for creating and editing documents. It helps us in real time online word processing. Google Docs allows us to export its document file in all major file types including .docx, .pdf, .odt, .rtf, .txt, and .html.

    Question:6 What is HTML?

    Ans: HTML stands for Hypertext Mark-up Language. It is a simple text based language. It is used to create webpages. HTML Commands that are used in webpages are called Tags. Tags are represented using angular brackets (<>).

    There are two types of tags used in HTML:

    1. Paired or Container tags

    2. Unpaired or Empty tags

    Question:7 Write the name of software's required for HTML programming?

    Ans: Following software's are required for HTML programming:

    1. Text Editors: Notepad, Notepad++, Sublime etc.

    2. Web Browsers: Internet Explorer, Google Chrome, Firefox etc.

    Question:8 What are attributes?

    Ans: HTML tags can also have attributes. Attributes are used to provide additional information about HTML tags. These attributes are always specified in the Opening tag. Attributes usually come in name/value pairs like: name="value". Attribute values should always be enclosed in quotation marks.

    Example: <table border= “1”>

    Here border is the attribute of table tag and “1” is the value the border attribute.

    Question:9 Write the name of any five tags used for formatting in HTML?

    Ans: Following are commonly used tags used for formatting in HTML:

    1. <B> tag for Bold

    2. <I> tag for Italic

    3. <U> tag for Underline

    4. <S> tag for Strikethrough

    5. <SUP> tag for Superscript

    Question:10 How will you scroll text and images in HTML document?

    Ans: Marquee is one of the important tags introduced in HTML. It is used to create scrollable texts and images within a web page. It scrolls either from horizontally - left to right or right to left, or vertically - top to bottom or bottom to top.

    For example: <marquee direction=”right”>Scrolling Text</marquee>

    Question:11 What is Definition List?

    Ans: Definition List is also known as a Description List. It is a list of items with a description or definition of each item or term. In this list, items are listed like in a dictionary. <DL> tag is used for declaring a definition list in HTML.

    Each list item in the definition list contains two entries:

    1. Definition Title (also called Data Term): The <DT> tag defines definition title.

    2. Definition Description (also called Data Definition): The <DD> tag defines definition description.

    Question:12 What is Ordered List? Write the name of tag and attributes for creating ordered lists.

    Ans: Ordered-List is also known as Numbered List because it displays list of items in the Numbered Format. These lists are used when the order of the items in the list is important.

    Tags and Attributes for Ordered List:

    •        The <OL> tag is used to create Ordered list in HTML. <LI> tag is used to represent the list items in the list.

    •        Type and Start are the two commonly used attributes for <OL> tag. Type attribute I used to specify the type of numbering for the list while Start attribute is used to specify the starting point of numbering

    Question:13 Write the name of various basic tags used for creating tables in HTML.

    Ans: Following are the basic tags used for creating tables in HTML documents:

    1. <TABLE>
    2. <TR>
    3. <TH>
    4. <TD>

    Question:14 How will you merge cells of HTML table?

    Ans: Merging cells mean combining two or more cells to make a single cell. Colspan and Rowspan Attributes can be used to merge cells in HTML tables.

    These are the attributes of <TD> or <TH> tags.

    1. Colspan: It is used to merge cells of two or more columns. For Example: <td colspan= “2”>
    2. Rowspan: It is used to merge cells of two or more rows. For Example: <td rowspan= “2”>

    Question:15 Explain the various attributes of <table> tag used for formatting its background.

    Ans: Table background can be formatted using the attributes of <table> tag. We can set table background using the following attributes:

    1. Bgcolor: This attribute is used to change the background color of the table. For Example: <table bgcolor=“pink”>…….</table>
    2. Background: This attribute is used to set background image for the table. For Example: <table background= “back.jpg”>…….</table>

    Question:16 How will you insert an image in the HTML document?

    Ans: To insert an image in the HTML document, we use <IMG> tag. The <IMG> tag is an empty tag, which means it has no closing tag. Following is the basic syntax to insert an image to a web page:

    <img src="image_url">

    Here, src is an essential attribute of <img> tag which stands for source. This attribute is used to specify the URL of the image to be displayed.

    Question:17 What is Hyperlink?

    Ans: HTML links are called Hyperlinks. A webpage can contain various links. These links allow visitors to navigate between Web sites by clicking on them. By default, web browser shows links in blue color with underline. In HTML, a link can be created using <a> tag. This tag is called anchor tag. In this tag, HREF (Hypertext Reference) attribute is used to specify the URL of the document to be linked. Following is the simple syntax to create a hyperlink using <a> tag.

    <a href=“link_url”>Link Text or Image</a>

    Question:18 What are Forms?

    Ans: HTML Forms provide interactivity between user and website. These forms are like simple forms. They are used to get data from the user, such as - registration information: name, email address, credit card, etc. A form gets input from the user. Then it will be posted/submitted to web-server. At web-server, server-side scripts (ASP or PHP etc.) process the form’s data and stores it in the database.

    Question:19 Write the name of various controls used in the web forms. Ans: Following are the commonly used controls of web-forms:

    1. Textbox Control
    2. Text Area Control
    3. Password Field Control
    4. Checkbox Control
    5. Radio button Control
    6. Selection List Control
    7. File Selection Control
    8. Button Control
    9. Submit Button
    10. Reset Button

    Question:20 What are the different types of buttons used in the HTML forms?

    Ans: Following are the common types of buttons used in the HTML documents:

    1. Submit: This button is used to send all form-data to the web server.
    2. Reset: This button is used to reset all form-controls to their initial values.
    3. Button: This button is used to call/run a function/code written in client-side scripting language (JavaScript).
    4. Image: This button is used to create a clickable button with image background.

    Question:21 What is Desktop Publishing?

    Ans: Desktop publishing is also known as DTP. DTP is an application through which we can print Visiting cards, Magazines, Calendar, Advertisement etc. in a good quality with the help of computer. This task is related to Publishing and Printing. Desktop Publishing Application is used to prepare beautiful, accurate and high-quality documents. It is easy to create Page Layout in it. Each object (Text and Graphics) can be controlled separately using DTP application software.

    Question:22 Write the name of various types of printers?

    Ans: A printer is an external output device that is used to print documents.

    There are two types of printers:

    1. Impact Printers (Daisy wheel printer, dot matrix printer, line printer)
    2. Non-Impact Printers (inkjet Printer, Laser Printer)

    Question:23 What are Margins?

    Ans: A margin is the space between the main content of a page and its edges. The margin helps to define where a line of text begins and ends. We can set margin in all four directions of a page - Top Margin, Bottom Margin, Left Margin and Right Margin. Commonly, document’s margin-size is set to one inch. Margin size can also be adjusted as per our requirement.

    Question:24 Define Graphics?

    Ans: A graphic is an image or visual representation of an object. Therefore, computer graphics are simply images displayed on a computer screen. Old Graphics could represent Graphics only in few colours while modern computers can represent Graphics in millions of colours. Computer graphics can be either two dimensional or three-dimensional.

    Question:25 What do you mean by the term “WYSIWYG”?

    Ans: It is pronounced as “Viz-E-Vig”. WYSIWYG stands for “What You See Is What You Get”. In printing and computing, it is a system that shows you exactly what the document will look like when you print it. We can prepare such type of documents with the help of DTP software that appears very close to WYSIWYG. In computers, laptops, and tablets, the ‘print preview’ feature is a WYSIWYG application.

    Question:26 What is Publisher?

    Ans: Publisher is a Desktop Application. The first version of Publisher was released in the year 1991 by Microsoft. In Microsoft Publisher, the emphasis is placed on page layout and design. It is used to design and produce attractive advertising and promotional material like letter heads, banners, posters, calendars, invitations, and newsletters and so on. This advertising and promotional material is called a publication.

    Question:27 How to start publisher using Run command?

    Ans: Following are the steps to start Publisher using Run command:

    1. Press Window Key + R from the keyboard, it will open Run Command box.
    2. Type MSPUB in it.
    3. Press Enter Key from keyboard or Click on OK button of Run Command Box.

    Question:28 Define Templates.

    Ans: Template is the default model of the Publication. A Template helps us to create a basic publication very easily. Many predefined design-styles are available in Templates. We can use these designs in publication without changing them or by making desirable changes in them. Many popular templates are available on office.com which can be downloaded to make high quality publications easily.

    Question:29 Which publications can be used for advertisements?

    Ans: Various print media used for advertisement are:

    1. Brochures
    2. News letters
    3. Banners
    4. Business cards

    Question:30 What is Banner?

    Ans: A banner is a long strip of cloth. Commonly, it bears a symbol, logo, slogan or other marketing message. Banners are commonly hung at public places. An online banner is a graphic image that announces the name or identity of a site. It is typically a rectangular advertisement placed on Web pages. It is generally linked to the web-site of advertiser.

    Long answer type questions(6-6marks)

    Question:1 What are Software's? Explain different types of software's?

    Ans: Software is a set of programs that enable a user to perform some specific task or used to operate a computer. Without software, a user can’t perform any task on a computer. Software can be divided into mainly two types: Application Software and System Software.

    1. System software: System software is a collection of system programs. These software's are designed to operate, control, and extend the processing capabilities of the computer itself. These software's are usually written in Low-Level Computer Programming languages. Some examples of system software are Operating System, Language Translators, etc.

    2. Applications software: Applications software's are also known as End-User Applications. These software's are mostly designed and developed to perform specific tasks for users. These software's are usually written in various types of High-Level Programming languages. Application software cannot run without the support of Operating System. MS Word, Excel, PowerPoint etc. are the examples of Application Softwares.

    Question:2 What are the advantages and disadvantages of using online office tools?

    Ans: Following are some of the common advantages and disadvantages of using online office tools: Advantages of Using Online Office Tools:

    1. The cost of using online office tools is either very low or there is no specific charge for using these services.
    2. There is no need to download or install these online tools/software.
    3. Online office tools can run on thin clients (N Computing) with minimal hardware requirements.
    4. Online office tools provide the ability to share files.
    5. Online office tools are portable.

    Disadvantages of Using Online Office Tools:

    1. For accessing these tools, high speed internet connectivity is required always.
    2. There is a lack of advanced features in the online tools as compared to offline tools.
    3. The user has no control over the version of the software used.

    Question:3 Compare Offline and Online Office Tools.

    Ans: Following table shows the comparison between Offline and Online Office-Tools:

    Offline Office Tools

    Online Office Tools

    1. No internet connection is required for using these tools

    1. Internet connection is required for using these office tools.

    2. Files created in offline office tools are stored in the local storage of computer system

    2. Files created in online office tools are stored on the cloud storage.

    3. Files can be accessed only on the local computer system where they are stored

    3. Files can be accessed from anywhere in the world as files are stored at online storage media

    4. Files cannot be shared easily.

    4. File can be shared easily using inbuilt options.

    5. Multiple people cannot work easily on the same file created in these Apps.

    5. Multiple people can work on the same file created in these Apps.

    6. Examples: MS Word, Excel, PowerPoint etc.

    6. Examples: Google Docs, Google Sheets, Google Slides etc.

    Question:4 Explain various functions of operating system.

    Ans: The main functions of the operating system are:

    1. Program Execution: The operating system executes user programs and system programs in the computer.
    2. Input Output Operation: The operating system controls all the input/output operations in the computer.
    3. File System Manipulation: The operating system manages the files and directories in the computer system.
    4. Communication: The operating system handles the communication between different types of devices and programs in a computer system.
    5. Error detection: The operating system can detect various types of errors in the computer system and correct them too.
    6. Resource Management: The various resources of the computer system, such as: Memory, CPU, Storage, etc. are also managed by the operating system.
    7. Protection: The operating system provides various technologies to protect user data and programs.

    Question:5 Write the difference between the Single-user and multi-user operating systems.

    Ans: Following table shows the major differences between these two systems:

    Single-User Operating System

    Multi-User Operating System

    1. In these Systems, only one user can access the computer at the same time.

    1. In these System, more than one user can access a computer at the same time.

    2. All the resources are allocated to a single user of the system.

    2. All the resources are allocated among multiple users of the system.

    3. Processing of system is faster.

    3. Processing of system is slower.

    4. These systems are simplistic and easy to design.

    4. These are complicated and difficult to design

    5. Types of Single User Operating systems are:

      • Single-User Single-Task systems
      • Single-User Multi-Task systems.

    5. The types of Multi-User Operating System are:

    Time Sharing Operating System

             Distributed Operating System

    6. Examples:   MS   DOS,   Windows   95,   Personal Computers, etc.

    6. Examples: Mainframe Computers such as IBM AS400, Linux & Unix Distributed OS, etc.

    Question:6 What is Time-Sharing Operating System? Write its advantages and disadvantages?

    Ans: In Time sharing systems, many terminals/users are connected to a main computer system at the same time. A little time of CPU is given to each user’s program in a circular way. This little CPU time given to each user is known as Time Slice or Time Quantum. The system switches rapidly from one user to the next user.

    Advantages of Time-Sharing System:

    1.      Reduces CPU idle time.

    2.      Reduces the output of paper.

    3.      Avoids duplication of software.

    Disadvantages of Time-Sharing System:

    1. Large main memory is required for user programs.

    2. It requires CPU scheduling techniques.

    3. Memory management is required.

    Question:7 What is Multi-Processing Operating Systems? Explain?

    Ans: Multiprocessing system is used to describe interconnected computers, with two or more CPUs. These systems have the ability to simultaneously execute several programs. In such a system, instructions from different and independent programs can be processed simultaneously by different CPUs. The basic organization of a typical multiprocessing system is shown below:

    Multiprocessing systems are of two types:

    1. Tightly Coupled Systems: These systems are also known as Parallel Processing Operating Systems. In these systems, there is a single primary memory, which is shared by all the processors.

    2. Loosely Coupled Systems: These systems are also known as Distributed Operating Systems. In these systems, each processor has its own local memory.