Practice Computer Science with our Class 9 online mock tests, updated for CBSE 2026-27. Each one gives an instant score, so you can quickly see how your preparation is going.
Chapter Tests for Class 9 Computer Science
Every test here focuses on a single Computer Science chapter for Class 9, made by our teachers to follow the CBSE 2026-27 marking pattern. Just click a chapter link to begin. No login is needed, and retakes are unlimited.
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Class 9 Computer Science: Concept Navigators & Diagnostic Solvers Select any unit below to use live computer tools and practice high-yield diagnostic questions from Computer Fundamentals, MS Office, and DBMS with verified explanations. Interactive Concept Tool: Number System Base Converter (Binary ↔ Decimal ↔ Hexadecimal) Q1.What is the primary function of the Control Unit (CU) within the Central Processing Unit (CPU)? Answer: (b). The Control Unit acts as the central coordinator of the computer, fetching instructions from memory, decoding them, and dispatching timing signals across the system.
Q2.Which of the following computer memories is strictly non-volatile and stores the factory bootstrap instructions (BIOS)? Answer: (a) ROM (Read Only Memory). ROM retains its content even when the computer is turned off. It stores the firmware (BIOS) required to initiate the bootup sequence.
Q3.What is the binary representation of the decimal number 13? Answer: (c) 1101. $13 = 8 + 4 + 0 + 1 = (1 \times 2^3) + (1 \times 2^2) + (0 \times 2^1) + (1 \times 2^0) = (1101)_2$.
Interactive Concept Tool: Boolean Logic Gate Simulator Q1.Which type of system software bridges the gap between the operating system and peripheral hardware devices like printers? Answer: (b) Device Driver. A device driver is specialized system software that translates general OS commands into specific hardware communication signals for that peripheral.
Q2.In Microsoft Windows, which keyboard shortcut permanently deletes a selected file without sending it to the Recycle Bin? Answer: (d) Shift + Delete. Pressing `Shift + Delete` bypasses the temporary safety storage of the Recycle Bin and permanently erases the file index from disk.
Q3.Which logic gates are referred to as 'Universal Gates' because any other boolean gate can be constructed using them? Answer: (c) NAND and NOR. NAND and NOR can be combined to implement the fundamental operations of AND, OR, and NOT, earning them the classification of universal logic gates.
Interactive Concept Tool: Office Productivity Shortcut & Formula Guide Q1.In Microsoft Excel, what will be the result of the formula: Answer: (b) 20. The `=AVERAGE()` function computes the arithmetic mean: $(10 + 20 + 30) / 3 = 60 / 3 = 20$.
Q2.In MS Word, which feature is used to automatically replace commonly misspelled words as you type? Answer: (a) AutoCorrect. AutoCorrect automatically fixes common spelling errors, capitalizes the first letter of sentences, and converts abbreviations.
Q3.What is the slide transition effect in a PowerPoint presentation? Answer: (c). Slide Transitions apply visual effects (like Fade, Wipe, Push) as one slide exits and the next slide enters the presentation view.
Interactive Concept Tool: RDBMS Terminology & Network Architecture Explorer Q1.What is the column of a database table containing information about a specific property called in DBMS? Answer: (b) Attribute (or Field). In relational databases, columns represent attributes (fields) describing properties, while horizontal rows represent tuples (records).
Q2.Which network topology connects all nodes to a central connecting device (such as a Switch or Hub)? Answer: (a) Star Topology. In a Star topology, each workstation has a dedicated point-to-point connection to a central switch/hub. If one cable fails, only that computer goes offline.
Q3.What is a primary advantage of a Relational Database Management System over a traditional flat file system? Answer: (c). DBMS organizes data into structured relations, reducing duplication (redundancy), preventing inconsistent updates, and enabling concurrent queries.
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FAQs
You can start the latest Computer Science mock tests for Class 9 by selecting your chapter from the links above. These tests are free, dont need login and are optimized for the 2026-27 academic session.
Yes, our Computer Science online tests are strictly as per the latest CBSE pattern with 20% MCQ weightage and main focus on competency-based and case-study questions.
After submitting your Class 9 Computer Science test, you can see score report and correct/incorrect answers.
There are no limits. You can re-attempt any Computer Science online test as many times for free, master concepts, improve your speed and accuracy.
Yes, the StudiesToday online test platform is mobile-first. Class 9 Computer Science students can take these tests on any smartphone.
Online tests help Class 9 students build confidence and time management. By solving above tests MCQs you can apply theoretical knowledge which is important for 2026-27 exams.