Get ready for Computer Science with these CBSE Class 8 MCQs, organized chapter by chapter for 2026-27. They help you master the current exam pattern, and build sharper problem-solving skills.
Getting the Most From Computer Science Objective Questions
- Covers several formats beyond regular MCQs - Assertion-Reasoning, Case-based, and Fill-in-the-blanks for Computer Science.
- Neatly organized by chapter, so you can test your grip on each Computer Science topic one at a time.
- Answers are explained clearly for every Computer Science question, so the reasoning actually makes sense.
- Built around the 2026 Computer Science textbook from CBSE, following their latest guidelines.
Computer Science MCQs for Class 8, by Chapter
Find the newest Computer Science question sets for 2026-27 below. A good way to check your own progress, and catch weak areas early, before exams.
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Quick Practice - Class 8 Computer Science Select a module below to practice key multiple-choice questions with instant answers and explanations. Q1.Which primary component of the CPU is responsible for carrying out arithmetic computations and logical comparisons? Answer: (b) Arithmetic Logic Unit (ALU). The ALU performs fundamental arithmetic operations (addition, subtraction, multiplication) and decision-making logic comparisons (AND, OR, NOT).
Q2.Why is RAM (Random Access Memory) characterized as 'volatile' memory? Answer: (c) It loses all stored data immediately when electrical power is switched off. RAM requires continuous power to hold data currently in active use by the CPU, making it temporary/volatile.
Q3.How many bytes are equivalent to exactly 1 Kilobyte (1 KB) in binary storage measurement? Answer: (a) 1024 Bytes. In digital computing, memory scales as powers of 2 ($2^{10} = 1024$). Therefore, $1\text{ KB} = 1024\text{ Bytes}$.
Q4.Which category of software acts as an intermediary managing hardware resources and user applications? Answer: (d) Operating System (System Software). The Operating System (e.g., Windows, Linux, macOS) manages system memory, processor scheduling, storage devices, and hardware communications.
Q5.The basic hardware cycle followed by all computer systems during execution is: Answer: (a) Input $\rightarrow$ Process $\rightarrow$ Output $\rightarrow$ Storage (IPOS). Raw data is taken through input devices, processed by the CPU, produced via output devices, and stored in secondary memory.
Q1.Which standard communication protocol forms the foundational transmission framework of the Internet? Answer: (b) TCP/IP (Transmission Control Protocol / Internet Protocol). TCP handles packet breaking and reassembly, while IP routes data packets to the correct destination IP address.
Q2.What is the complete form of the technical term 'URL' used to locate web resources? Answer: (a) Uniform Resource Locator. A URL specifies the unique web address of an online resource on the Internet (e.g., https://www.studiestoday.com).
Q3.A malicious online practice where fraudulent emails or websites mimic legitimate entities to steal credentials is: Answer: (c) Phishing. Phishing is a social engineering cyberattack designed to trick users into revealing sensitive data like passwords and credit card details.
Q4.Which device modulates digital computer signals into analog frequencies for transmission over physical telephone lines? Answer: (d) Modem (Modulator-Demodulator). A modem converts outgoing digital data into analog transmission signals and demodulates incoming analog signals back to digital data.
Q5.The secure, encrypted communication protocol indicated by a padlock icon in browser address bars is: Answer: (a) HTTPS (HyperText Transfer Protocol Secure). HTTPS utilizes SSL/TLS encryption protocols to protect bidirectional communication against eavesdropping and data tampering.
Q1.Every formula and function in Microsoft Excel must begin with which mandatory symbol? Answer: (c) Equal sign (=). Excel interprets any cell entry beginning with an equal sign (=) as an executable mathematical formula or built-in function.
Q2.The rectangular intersection of Column 'D' and Row '15' in a worksheet is represented by cell address: Answer: (a) D15. Standard cell referencing in Excel designates the column letter first followed immediately by the row number.
Q3.Which built-in function is used to add all numeric values across a continuous range from A1 through A10? Answer: (b) =SUM(A1:A10). The SUM function calculates the total mathematical addition of all numerical values in the specified cell range.
Q4.Which symbol is used in Excel formulas to lock row or column coordinates in Absolute Cell Referencing? Answer: (d) Dollar sign ($). Placing dollar signs (e.g., $A$1) prevents the cell reference from changing when the formula is copied to other cells.
Q5.What is the default file extension for workbooks saved in modern versions of Microsoft Excel? Answer: (a) .xlsx. Modern Microsoft Excel spreadsheets are saved using the XML-based file extension .xlsx.
Q1.Which function key on the keyboard instantly starts a Slide Show from the first slide in PowerPoint? Answer: (a) F5. Pressing F5 launches the full-screen Slide Show from slide 1. (Shift + F5 launches from the current active slide).
Q2.What is the fundamental difference between 'Slide Transition' and 'Custom Animation'? Answer: (b) Transition occurs when moving between slides; Animation applies to individual elements on a slide. Transitions govern screen movement from one slide to the next, while animations control visual effects on text/objects within a slide.
Q3.Which master view is used to apply a unified design, font style, and logo across all slides simultaneously? Answer: (c) Slide Master. Modifying the Slide Master globally updates default themes, placeholders, logos, and typographic styles across the presentation.
Q4.Which keyboard shortcut key combination is used to insert a brand new blank slide into an active presentation? Answer: (a) Ctrl + M. Ctrl + M inserts a new slide into the existing presentation, whereas Ctrl + N creates an entirely new presentation file.
Q5.Which presentation view displays miniature thumbnail versions of all slides on a single screen for easy reordering? Answer: (d) Slide Sorter View. Slide Sorter view displays small thumbnails of all presentation slides horizontally, enabling drag-and-drop reordering.
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| Fundamentals of Computer MCQs |
| Internet MCQs |
| MS Excel MCQs |
| Power Point MCQs |
FAQs
For the 2026-27 session, MCQs and objective-type questions carry around 20% weightage. CBSE has introduced 30% competency based questions as MCQs and they are important part of the Class 8 Computer Science paper.
You can access the latest chapter-wise MCQs for Class 8 Computer Science for free from StudiesToday.com. All questions are based on the latest syllabus and current academic year.
Yes, our Computer Science practice bank includes the new pattern of Assertion Reasoning and Case Study based MCQs. They have been designed to test the analytical skills of Class 8 students.
Solving Class 8 Computer Science MCQs regularly improves speed and accuracy as these are objective questions can get you 100% marks if your understanding of the topic is clear.
Yes, all Class 8 Computer Science MCQs and answers are accessible on any device at your convenience.
No, all Computer Science Multiple Choice Questions (MCQs), practice papers, and solutions for Class 8 are available for free for students to get more marks school exams.