HSC Science इयत्ता ११ - Tamil Nadu Board of Secondary Education Question Bank Solutions for Computer Science

Which generation of computers used IC’s?

Discuss the various generations of computers.

What is data?

The Operating system is a ______.

Identify the usage of Operating Systems.

List out any two uses of the Operating System?

List out the key features of the Operating system?

From the options given below, choose the operations managed by the operating system.

What is known as Multitasking?

Differentiate Save and Save As option.

Write a note on Recycle bin.

If `sqrt2` = 1.414, and the square_root() function returns -1.414, does it violate the following specification?

-- square_root (x)
-- inputs: x is a real number , x ≥ 0
-- outputs: y is a real number such that y² = x

When do you say that a problem is algorithmic in nature?

Suppose you want to solve the quadratic equation ax² + bx + c = 0 by an algorithm.

quadratic_solve (a, b, c)

-- inputs:?

-- outputs:?

You intend to use the formula and you are prepared to handle only real number roots. Write a suitable specification.

x = `(-b ± sqrt(b^2) - 4ac)/(2a)`

Draw a flowchart for the conditional statement.

Both conditional statements and iterative statements have a condition and a statement. How do they differ?

What is case analysis?

Exchange the contents: Given two glasses marked A and B. Glass A is full of apple drink and glass B is full of grape drink. Write the specification for exchanging the contents of glasses A and B, and write a sequence of assignments to satisfy the specification.

Decanting problem. You are given three bottles of capacities 5,8 and 3 litres. The 8L bottle is filled with oil, while the other two are empty. Divide the oil in an 8L bottle into two equal quantities. Represent the state of the process by appropriate variables. What are the initial and final states of the process? Model the decanting of oil from one bottle to another by assignment. Write a sequence of assignments to achieve the final state.

Suppose u, v = 10 ,5 before the assignment. What are the values of u and v after the sequence of assignments?

1 u := v

2 v := u