Question Discussion & Solution

Sequence should be follow is:

The correct answer is a Flatbed scanner.

Key Points

• The flatbed scanner is used to scan documents by placing them upside down on a glass plate.
• A flatbed scanner provides a flat, glass surface to hold a sheet of paper, book, or another object for scanning.
• The scan head is moved under the glass.
• Flatbed scanners often come with sheet feeders for scanning multiple sheets of paper rather than one at a time.

Additional Information

Working of Flatbed Scanner:

• For modern scanners, a Charge-coupled device [CCD] is used.
• A CCD sensor is used to capture the light from the scanner and then convert it into proportional electrons.
• The charge developed will be more if the intensity of light that hits on the sensor is more. 

The correct answer is Insert > Illustration > Chart.

Key Points

• How to create Charts
  • To create a simple chart in PowerPoint, click insert> Chart and pick the chart you want.
  • Click the placeholder that you want to contain the chart.
  • On the Insert Tab, in the illustrations click the chart.
  • In the Insert Chart dialog box, click a chart and then click ok.

Additional Information

• MS PowerPoint
  • It is a presentation program used to present data and information by using text, diagrams with animation, images, and transitional effects in the form of slides.
  • It is developed by Robert Gaskins and Dennis Austin.

The correct answer is a Cooperative multitasking operating system.

Key Points

• Cooperative multitasking operating system:
  • It is a style of computer multitasking in which the operating system never initiates a context switch from a running process to another process.
  • It is also known as non-preemptive multitasking.
  • Its role reduced down to starting the processes and letting them return control back to it voluntarily.

Additional Information

• Real-time operating system:
  • It is an operating system intended to serve real-time applications that process data as it comes in without buffer delays.
  • A real-time system is a time-bound system that has well-defined, fixed time constraints.
  • Most RTOS uses a pre-emptive scheduling algorithm.
• Single user operating system: 
  • It is a type of system that has been developed and designed to use on a computer.
  • It is the most common system used for home computers.
  • There are two types of this operating system
  1. single-task
  2. multitask
• Multi-user operating system:
  • It is an operating system that allows multiple users to connect and operate a single operating system.
  • The users interact with it through terminals or computers.
  • Examples - Linux, Unix, Windows 2000, etc.

The correct answer is Spreadsheet.

Important Points

• MS Excel, a worksheet, also known as a Spreadsheet, is a table into which you enter data and data label.
• Worksheet used in Excel documents is a collection of cells organized in rows and columns. It is the working surface you interact with to enter data.
• Each worksheet contains 1048576 rows and 16384 columns and serves as a giant table that allows you to organize information.
• Typically, a workbook contains several worksheets with related content and only one of the worksheets is active at a time.

Key Points

• The main characteristics of worksheets:
  • Cells: Each worksheet has a significant number of cells that can be assigned values and various formatting options.
  • Rows and Columns: Cells in a worksheet are organized into rows and columns. The API of a worksheet allows you to insert, manipulate and delete rows and columns.
  • Names (Named Ranges): The Worksheet class exposes a Names property of type NameCollection that allows you to create, update and manage names.
  • Collection of Hyperlinks: Each worksheet can contain numerous hyperlinks to web pages, particular cells in the workbook, or email addresses.
  • Find and Replace: You can easily find and replace text and numbers in the content of a worksheet.
  • Protection: You can restrict the user from modifying the content and structure of the worksheet.

Additional Information