Question Discussion & Solution

The correct answer is A Central processing unit.

Key Points

• Central Processing Unit(CPU)
  • A CPU is also called a central processor, main processor, or just processor, is the electronic circuitry that executing instructions comprising a computer program.
  • The CPU performs basic arithmetic, logic, controlling, and input/output operations specified by the instructions in the program.
  • The fundamental operation of most CPU's regardless of the physical form they take is to execute a sequence of stored instructions called a program. 
• Instructions cycle in CPU
  • All CPU's follows the following steps in order to complete their operations:
    1. Fetch: The first step, involves retrieving instructions from the program memory.
    2. Decode: The instruction that the CPU fetches from the memory determines what the CPU will do, which is decoded by the instructor decoder.
    3. Execute: In this step, all the desired functions are performed as per the instructions decoded.
• Intel Core
  • ​Intel core are streamlined computers CPU marketed by Intel Corporation.
  • Brand Names: Core, Core 2, Core i3, Core i5, Core i7, Core i9
  • Launched: January 2006
  • Founders: Gordon Moore Robert Noyce
  • Headquarters: Santa Clara, California, USA

Additional Information

The correct answer is All of the Above.

 Key Points

• Decision making structures require that the programmer specifies one or more conditions to be evaluated or tested by the program.
• It also involves a statement or statements to be executed if the condition is determined to be true, and optionally, other statements to be executed if the condition is determined to be false.
• C programming language provides the following types of decision-making statements.
• if...else statement
  • An if statement can be followed by an optional else statement, which executes when the Boolean expression is false.
• switch statement
  • A switch statement allows a variable to be tested for equality against a list of values.
• C goto
  • The goto statement in C/C++ also referred to as the unconditional jump statement can be used to jump from one point to another within a function.

 Additional Information

• C break:
  • This loop control statement is used to terminate the loop.
  • As soon as the break statement is encountered from within a loop, the loop iterations stop there, and control returns from the loop immediately to the first statement after the loop.

Conclusions:

I) Penalty for costlier books will be higher → can not be concluded from the given statement as there is no mention about the costlier books.

II) Penalty for lighter books will be lesser → can not be concluded from the given statement as there is no mention about the lighter books.

Hence, neither conclusion I nor II follows.

Additional Information

• If there are two or more sentences that are used to frame a statement, then, the sentences must be interrelated, and mutual contradiction should be there.
• Do not look for truthful notions. The information provided in the statement is the only requirement for a student to answer the question. No assumptions must be made.
• Read the statement carefully and look for keywords that are common between the statement and the conclusions
• If there is more than one conclusion that is applicable to the statement, students must ensure that the conclusions they opt for have some relation with each other.

The correct answer is ​CTRL + Z.

• CTRL + Z is used to undo changes (UNDO) in Ms-Word.

​Key Points

• CTRL + Z
  • To reverse the last action done by can be regained using CTRL+Z shortcut.
  • We can reverse more than one action using this shortcut tool.

Additional Information

• CTRL + Y
  • The keyboard shortcut for Redo is CTRL-Y.
• ​​Ctrl+N
  • ​​Ctrl+N is a keyboard shortcut most often used to create a new document, window, workbook, or other types of file.
• CTRL + H
  • Ctrl+H is a keyboard shortcut whose function varies depending on the program.
  • For example, with text editors, Ctrl+H is used to find and replace a character, word, or phrase.
  • In an Internet browser, Ctrl+H opens the history tool.

Y → Position value of Y is 25 which square of 5.

P → Position value of P is 16 which square of 4

I → Position value of I is 9 which square of 3

D → Position value of D is 4 which square of 2

Therefore, square of 1 is 1 and that corresponds to A.