Introduction to Computer Engineering MCQs (Part-2)
Which of the following is the smallest unit of data in a computer?
A Word
B Kilobyte
C Bit
D Byte
A bit (short for “binary digit”) is the smallest unit of data in computing, represented by either 0 or 1. Bits are the fundamental building blocks for all data processed by a computer.
Which device is used to permanently store data in a computer?
A Hard Disk
B CPU
C RAM
D Monitor
The hard disk (HDD or SSD) is used to store data permanently on a computer. Unlike RAM, which is volatile and loses data when power is off, the hard disk retains data even after the computer is turned off.
What does RAM stand for?
A Read Access Memory
B Random Access Memory
C Rapid Access Memory
D Right Access Memory
RAM stands for Random Access Memory. It is a type of volatile memory that temporarily stores data and instructions that the CPU needs to access quickly while running programs. It is cleared when the computer is powered off.
What is the function of an input device?
A Display data
B Send data to the computer
C Process data
D Store data
Input devices allow the user to send data or commands to a computer. Examples include keyboards, mice, and scanners. They provide a way for users to interact with computers and input data.
Which of the following is an example of a non-volatile memory?
A Cache
B CPU
C Hard Drive
D RAM
Non-volatile memory, such as a hard drive or SSD, retains stored data even when the power is turned off. This makes it suitable for long-term data storage, unlike volatile memory like RAM, which loses data when powered off.
What is the primary function of the motherboard in a computer?
A To connect all components
B To display output
C To store data
D To process data
The motherboard serves as the main circuit board in a computer, connecting various components such as the CPU, RAM, storage devices, and peripherals, allowing them to communicate with each other.
Which programming language is known for its use in web development?
A Python
B HTML
C C++
D Java
HTML (Hypertext Markup Language) is the standard language used to create and structure web pages. It defines the layout, elements, and content of web pages. Other languages like JavaScript and CSS are also used alongside HTML for web development.
Which of the following is NOT an example of system software?
A Operating system
B Antivirus software
C Device drivers
D Web browser
A web browser is considered application software, not system software. System software includes the operating system and tools like device drivers and antivirus software, which help manage and support computer hardware and system operations.
What is the main role of an operating system?
A To run applications
B To control hardware and software resources
C To provide a programming environment
D To store user data
The operating system (OS) manages hardware and software resources, ensuring that different programs and users can share resources efficiently. It acts as an interface between the computer’s hardware and the user, running applications and managing files.
What is the primary advantage of cloud computing?
A It offers scalable storage and computing power
B It uses physical servers only
C It requires no internet connection
D It stores data in a local device
Cloud computing allows users to access scalable storage and computing resources over the internet. It provides flexibility, enabling users to scale up or down based on their needs, and reduces reliance on local hardware.
Which type of computer is designed for a single user?
A Supercomputer
B Personal computer
C Server
D Mainframe
A personal computer (PC) is designed for use by a single individual, typically for tasks such as word processing, browsing the internet, and playing games. It can be either a desktop or a laptop.
What does a compiler do in programming?
A Stores the code
B Converts code into binary
C Translates high-level code into machine code
D Runs the program
A compiler translates programs written in high-level languages (such as C or Java) into machine code that the computer’s CPU can execute. It helps the program run efficiently on the hardware.
Which of these is a type of software?
A Keyboard
B Monitor
C Application software
D CPU
Application software includes programs designed to help users perform specific tasks, such as word processors, web browsers, and games. Unlike system software, which operates the hardware, application software focuses on user functions.
Which of the following is an example of a digital system?
A Clock
B Radio
C Calculator
D Television
A calculator is an example of a digital system, as it processes data in discrete binary values (0s and 1s). Digital systems operate using binary logic and are used in most modern electronic devices.
What is the role of the CPU in computing?
A Perform calculations and execute instructions
B Control hardware devices
C Store data
D Display output
The CPU (Central Processing Unit) is the core component of a computer that performs calculations, executes instructions from programs, and controls other hardware components. It acts as the brain of the computer, enabling all operations.