Maharashtra Board Textbook Solutions for Standard Four

Lesson 23 – Computers

Things to do

1. Read the sentence and choose the correct alternative.

(a) Mistakes are bound to occur.

(i) There are no mistakes.

(ii) There are some mistakes.

(iii) All mistakes are tied together.

 

Ans: Option (ii) – There are some mistakes.

 

(b) There are few things that a modern computer is not able to do.

(i) A modern computer con do a few things.

(ii) A modern computer cannot do a few things.

(iii) A modern computer can do almost everything.

 

Ans: Option (iii) – A modern computer can do almost everything.

2. List the mathematical operations mentioned in the passage. Using your mathematics textbook, write one example of each operation. 

Ans: The mathematical operations mentioned in the passage are Addition, Subtraction, Multiplication, Division.

 

Examples of each operation:

1. 96 + 23
2. 65 – 33
3. 555 × 44
4. 100 ÷ 50

3. Do you make mistakes in your calculations? What do you do to correct them

Ans: Yes, I do make mistakes sometimes. I correct them by doing the entire calculations again.

4. What do you do to remember the information you have gathered?

Ans: I note down the information which I have gathered in my notebook then I read the information again and again till I remember it well.

5. Choose any home assignment you have been given. Write a detailed set of instructions for completing that assignment. 

Ans: Students should do this on their own.

6. List all the words related to computers that you find in this passage. Find and add more words to the list

Ans: 

Words from the passage: Machine, speed, accuracy, modern, information, store, etc. 

More words related to computers: keyboard, mouse, printer, cable, mouse pad, screen, etc.

IMG 20230830 025526 Lesson 23 – Computers