Download the 10th Class Computer Science Chapter Wise Test 1 PDF in English Medium for Chapter 1 preparation under the PECTAA Board 2027 Model Papers. This Class 10 Computer Science test is designed to help students prepare according to the new syllabus for the 2026–2027 academic session. Practise chapter-wise questions, revise important concepts, and assess your preparation with our Class 10 Computer Chapter 1 Test PDF. Explore more PECTAA Board 2027 model papers, chapter-wise tests, and exam preparation resources to improve your performance in the annual examinations.
NOTE: Four possible answers A, B, C and D to each question are given. The choice which you think is correct, fill that circle in front of that question with Marker or Pen ink. Cutting or filling two or more circles will result in zero mark in that question.
TIME: 10 Min
OBJECTIVE
MARKS: 8
Q.1:(08)
1. Multi-user OS is one who?
(A) Install software(B) Manage hardware(C) Secure each user’s file and information(D) Utility program
Correct Answer: C
2. Nvme is used in:
(A) RAM(B) ROM(C) External USB(D) SSD
Correct Answer: D
3. When task performed by more than one processor it is called?
(A) Multitasking(B) Multiprocessing(C) Multithreading(D) Multi management
Correct Answer: B
4. DDR5 RAM can transfer data at rate of:
(A) 10 Gbps(B) 20 Gbps(C) 30 Gbps(D) 50 Gbps
Correct Answer: D
5. In multi-user environments, the OS ensures:
(A) Equal access and data privacy(B) All users share the same files(C) Hardware is never used(D) Internet speed is increased
Correct Answer: A
6. The core part of the OS that interacts directly with hardware is the:
(A) Shell(B) Kernel(C) Device Driver(D) System Library
Correct Answer: B
7. Threads in the same process:
(A) Have separate memory spaces(B) Share the same memory and resources(C) Run on different OS(D) Cannot run simultaneously
Correct Answer: B
8. Which system call is used to create a new process?
(A) Open(B) read(C) Write(D) fork
Correct Answer: D
TIME: 25 Min
SUBJECTIVE
MARKS: 17
(PART – I)
Q.2: Write short answers.(6×2=12)
(i)
How can we create a new user account in MS windows?
Open Settings → Accounts → Family & other users → Add account (or Control Panel → User Accounts → Manage another account → Add a new user). Enter the user name and password, then click Next/Finish. The new account appears in the user list.
(ii)
Describe dis-advantages of FCFS.
1) Convoy effect: short processes wait behind a long one. 2) Average waiting time is often long. 3) It is non-preemptive, so it is unsuitable for time-sharing systems. 4) Poor CPU and I/O device utilization.
(iii)
Differentiate between primary memory and secondary memory.
Primary memory
Secondary memory
Directly accessed by the CPU
Accessed through I/O devices
Fast, small, costly (RAM, ROM)
Slower, large, cheaper (HDD, SSD)
RAM is volatile
Permanent (non-volatile) storage
(iv)
How does the OS act as a translator between the user and hardware?
The user gives commands through a GUI or CLI. The OS (kernel, system calls and device drivers) converts them into instructions that the hardware can understand, runs them, and shows the result back to the user.
(v)
Define multitasking in computer system.
Multitasking means running more than one program/task at the same time by rapidly switching the CPU between them, e.g. listening to music while typing a document.
(vi)
Why is virtual memory slower than RAM?
Virtual memory uses a part of the hard disk/SSD as an extension of RAM. Disk storage is much slower than RAM, and swapping pages between disk and RAM takes extra time.
(PART – II)
☆ Write a detailed Answer.(5)
Q.3: Explain the process lifecycle in detail with examples.
A process passes through the following states during its life:
New: the process is being created (e.g. a user double-clicks MS Word).
Ready: the process is loaded in memory and waits in the ready queue for the CPU.
Running: the scheduler dispatches it and its instructions are executed by the CPU.
Waiting (Blocked): it waits for an I/O event, such as saving a file or reading a disk; after the I/O completes it goes back to Ready.
Terminated: the process finishes (or is killed) and the OS releases its resources.
Example: While a web browser is open it is Running; when it waits for a file to download it is Waiting; once the data arrives it is Ready again; closing the browser Terminates it.
