Uses of Binary Numbers in Computers MCQs
Uses of Binary Numbers in Computers – Class 7 MCQs with Answers & Explanations
Class: CBSE Class 7
Subject: Computer Science
Section: Number System
Topic: Uses of Binary Numbers in Computers
Subject: Computer Science
Section: Number System
Topic: Uses of Binary Numbers in Computers
Strictly Based on NCERT Syllabus | Useful for CBSE Unit Tests • Half‑Yearly • Annual Examinations
1. Computers use binary numbers because they understand:
Answer: c)
Computers operate using electrical signals which have two states: ON and OFF.
Computers operate using electrical signals which have two states: ON and OFF.
2. Binary digit 1 represents:
Answer: b)
1 indicates ON or TRUE state in digital circuits.
1 indicates ON or TRUE state in digital circuits.
3. Binary digit 0 represents:
Answer: c)
0 represents OFF or FALSE state.
0 represents OFF or FALSE state.
4. Binary numbers are used to store:
Answer: a)
All types of data are stored in binary form.
All types of data are stored in binary form.
5. Text in computers is stored as:
Answer: b)
Characters are converted into binary using encoding systems.
Characters are converted into binary using encoding systems.
6. Images are stored using:
Answer: a)
Pixels are represented using binary numbers.
Pixels are represented using binary numbers.
7. Audio files are stored in:
Answer: a)
Sound waves are converted into binary signals.
Sound waves are converted into binary signals.
8. Videos are stored using:
Answer: a)
Video is a sequence of binary‑stored images and audio.
Video is a sequence of binary‑stored images and audio.
9. Processing in CPU happens in:
Answer: a)
CPU performs all operations in binary form.
CPU performs all operations in binary form.
10. Memory stores data as:
Answer: b)
RAM and storage devices store bits.
RAM and storage devices store bits.
11. Software instructions are written in:
Answer: a)
Programs are converted into machine (binary) language.
Programs are converted into machine (binary) language.
12. Keyboard input is converted into:
Answer: a)
Keystrokes are encoded into binary signals.
Keystrokes are encoded into binary signals.
13. Printers receive data in:
Answer: a)
Printing commands are binary instructions.
Printing commands are binary instructions.
14. Internet data transfer uses:
Answer: a)
All digital communication uses binary transmission.
All digital communication uses binary transmission.
15. Storage devices store:
Answer: a)
Hard disks and SSDs store binary bits.
Hard disks and SSDs store binary bits.
16. Binary is used in:
Answer: a)
Electronic circuits operate on binary logic.
Electronic circuits operate on binary logic.
17. Barcodes store data in:
Answer: a)
Bars represent binary sequences.
Bars represent binary sequences.
18. QR codes use:
Answer: a)
QR data is stored in binary matrix form.
QR data is stored in binary matrix form.
19. Binary ensures computers are:
Answer: a)
Binary processing is efficient and reliable.
Binary processing is efficient and reliable.
20. Main use of binary in computers is:
Answer: a)
Binary enables storage, processing, and communication of digital data.
Binary enables storage, processing, and communication of digital data.