Question Discussion & Solution

The correct answer is Single-User Operating System.

Important Points

• Single-User Operating System
  • Performs a single task for Single-user.
  • This operating system is designed to manage the computer so that one user can effectively do one thing at a time.
  • Examples include Microsoft Windows.

Additional Information

• The different types of Operating System:
• Batch Operating System
  • There is no direct communication between the computer and the OS.
  • There is an intermediate, the Operator.
  • The operator distributes the work into batches.
• Real-Time Operating System
  • The processing time is very small between the user’s command and the output such that there is no operator.
• Time-Sharing Operating System
  • Multiple people at various computers can use a program at the same time.
• Distributed Operating System
  • When two or more systems are connected to each other and one can open each other's files.
• Embedded Operating System
  • These special Operating systems are built into larger systems.
  • They are limited to single specific functions like an ATM.
• Network Operating System
  • They have one main server which is connected to other client servers.
  • It provides a secure operating system for working with multiple users.

Running, Swimming, Dancing requires some body movement from one place to other.

While, Breathing does not require movable body movement.

Hence, Breathing is the correct answer.

The correct answer is Resolution.

• The number of horizontal and vertical pixels on a display screen is called Resolution.

​Key Points

• Resolution
  • ​ The number of horizontal and vertical pixels on a display screen is called Resolution.
  • The more pixels, the more information is visible without scrolling.
  • Screen resolutions have a pixel count such as 1600x1200, which means 1,600 horizontal pixels and 1,200 vertical pixels.
  • Screen resolutions also have base names, such as HDTV and Ultra UHD for TVs and XGA and WQXGA for computer monitors.  

Additional Information

• Dot Pitch 
  • ​Dot pitch is a measurement that defines the sharpness of a display.
  • It measures the distance between the dots used to display the image on the screen.
  • This distance is very small and is typically measured in fractions of millimetres.
• Aspect Ratio
  • ​Aspect ratio describes the ratio between the width and height of an image or screen.
  • The first number refers to the width, and the second number refers to the height.
  • A 1:1 aspect ratio, for example, is a square.

Given that-

We add upper two number then divide by 2 and then square of that number we get lower number.

(6 + 4) ÷ 2 = 5² = 25

(3 + 1) ÷ 2 = 2² = 4 

Similarly,

(5 + 3) ÷ 2 = 4² = 16

Alternate Method 

Figure 1: 6 × 4 + 1 = 25 

Figure 2:  3 × 1 + 1 = 4

similarly, 

Figure 3:  5 × 3 + 1 = 16

Hence, "16" is the correct answer.

Given:

The only one figure that satisfies the given pattern is: 

Hence, A is the correct answer.