Computer Fundamentals — Flashcards
NIOS · Class 12 · Computer Science
30 flashcards for Computer Fundamentals (NIOS Class 12 Computer Science) to test yourself on key terms and facts.
Interactive on Super Tutor
Studying Computer Fundamentals? Get the full interactive chapter.
Quizzes, flashcards, AI doubt-solver and a step-by-step study plan — built for flashcards and more.
Free trial, no card needed.
Define a computer and list its four basic functions.
Answer
A computer is an electronic machine that takes input, processes it, and produces the desired output. The four basic functions are: (1) Accept input from devices like keyboard and mouse, (2) Process in…
A school has 256 KB of RAM memory. How many bytes can it store? (1 KB = 1024 bytes)
Answer
To find total bytes: 256 KB × 1024 bytes/KB = 262,144 bytes. This memory can store 262,144 characters or data units. Remember: Memory capacity is directly proportional to the number of bytes it can ho…
Why does a computer need both primary memory (RAM) and secondary memory (hard disk)?
Answer
Primary memory (RAM) is fast but temporary and expensive. It holds data and programs currently being used by the CPU. Secondary memory (hard disk) is slower but permanent and cheaper. It stores large …
What happens when you press a key on the keyboard?
Answer
Step-by-step process: (1) Mechanical switch in keyboard closes, generating electrical signal, (2) Signal is sent to CPU through input port, (3) Control Unit receives and interprets the signal, (4) Sig…
Distinguish between hardware and software with examples.
Answer
Hardware: Physical components you can see and touch. Examples: CPU, monitor, keyboard, hard disk, RAM, motherboard, printer. Software: Intangible programs and instructions stored in memory. Examples: …
Why is the CPU called the 'Brain of the Computer'?
Answer
The CPU controls all computer operations, similar to how the human brain controls body functions. It processes all instructions, coordinates activities of all components, performs calculations, and ma…
A barcode reader at a supermarket scans a product. Explain the complete process.
Answer
Process: (1) Barcode reader (input device) scans black and white vertical stripes on product, (2) Reader converts barcode into electrical signals, (3) Signals sent to CPU, (4) CPU processes the barcod…
What is the difference between RAM and ROM?
Answer
RAM (Random Access Memory): Volatile (loses data when power is off), Read/Write memory (can modify data), Fast access speed, Temporary storage, used for running programs. ROM (Read Only Memory): Non-v…
+22 more flashcards
Practise AllFrequently Asked Questions
What are the important topics in Computer Fundamentals for NIOS Class 12 Computer Science?
How many flashcards are available for Computer Fundamentals?
How should I revise Computer Fundamentals for the NIOS Class 12 board exam?
Sources & Official References
Content is aligned to the official syllabus. Refer to the board website for the latest curriculum.
More resources for Computer Fundamentals
For serious students
Get the full Computer Fundamentals chapter — start free.
Quizzes, flashcards, an AI doubt solver and a study plan for NIOS Class 12 Computer Science. Free to start, no card needed.