Introduction to Computer Engineering MCQs (Part-11)
What is the main difference between digital and analog systems?
A Storage
B Signal type
C Speed
D Cost
Digital systems use discrete values (0 and 1), while analog systems use continuous signals. Digital systems are more precise and reliable, while analog systems handle real world data like sound and temperature.
Which system processes data in discrete values?
A Digital
B Mixed
C Continuous
D Analog
Digital systems process data in discrete values (0 and 1). This allows for accurate representation of data in a binary form, making them more reliable for computational tasks than analog systems, which use continuous signals.
What is an embedded system?
A General purpose computer
B Internet router
C Specialized computer within a device
D Network switch
An embedded system is a specialized computer designed to perform specific tasks within a larger system. Examples include control systems in cars, washing machines, and medical devices. These systems often have real time constraints.
What does AI primarily focus on in computing?
A Hardware management
B Networking
C Data storage
D Simulating human intelligence
AI (Artificial Intelligence) focuses on creating systems that simulate human intelligence. It allows machines to perform tasks like problem solving, learning, and decision making, mimicking human cognition through algorithms and models.
What is the primary role of AI in computing?
A Make decisions and predictions
B Improve hardware performance
C Speed up processing
D Manage network traffic
The role of AI in computing is to make decisions, solve problems, and make predictions based on data. AI algorithms are used in areas like machine learning, robotics, and data analysis to automate tasks and enhance user experience.
Which of the following is an example of an analog system?
A Digital clock
B Microprocessor
C Audio amplifier
D Digital camera
An audio amplifier is an example of an analog system, as it amplifies continuous electrical signals (analog signals) from audio sources. It works with varying signals, unlike digital systems, which work with binary signals.
Which system is most commonly used for precise data manipulation in modern computing?
A Digital
B Analog
C Hybrid
D Continuous
Digital systems are most commonly used for precise data manipulation in modern computing. They process discrete signals (binary), which are more accurate and easier to manipulate than continuous analog signals, making them ideal for computers and electronics.
What is a common feature of embedded systems?
A Running multiple applications
B Connects to the internet
C Designed for specific tasks
D General purpose computing
Embedded systems are specialized computers that perform specific tasks within a larger system. Unlike general purpose computers, they are optimized for a particular function, such as controlling a microwave oven or monitoring heart rate in medical devices.
What is an example of a digital to analog conversion?
A Printing text
B Sound output from a speaker
C Audio recording
D Binary code conversion
Digital to analog conversion (DAC) is the process of converting digital data (binary) into an analog signal. An example is converting digital audio files into sound waves that can be played through speakers, which require continuous analog signals.
What is the key advantage of digital systems over analog systems?
A Precision and noise resistance
B Continuous data representation
C Lower cost
D Higher speed
Digital systems offer greater precision and are more noise resistant than analog systems. They represent data with discrete values (0 and 1), making them less susceptible to distortion or interference, which is common in analog systems.
What is the purpose of a microcontroller in embedded systems?
A Run operating systems
B Process large data sets
C Control hardware components
D Provide user interfaces
A microcontroller is a small, integrated circuit used in embedded systems to control hardware components. It processes inputs from sensors and controls actuators or outputs based on predefined instructions, enabling the system to perform specific tasks.
Which of the following is a feature of AI in computing?
A Data encryption
B Memory management
C Operating system control
D Self learning from data
AI systems, particularly those using machine learning, are designed to self learn from data. This means the system can improve its performance over time based on new data, without needing explicit programming for each task.
Which of the following best describes the output of a digital system?
A Discrete values
B Unstructured data
C Continuous signals
D Analog signals
Digital systems produce outputs in discrete values, typically represented as binary digits (0 and 1). This allows for precise data representation and manipulation, which is essential in computing and modern electronics.
How does an embedded system differ from a general purpose computer?
A It has more memory
B It is slower
C It performs specific functions
D It is larger
An embedded system is designed to perform a specific function or set of functions within a larger system, such as controlling a car’s engine or managing industrial processes. Unlike a general purpose computer, it is not designed for a broad range of tasks.
Which technology enables systems to improve their performance by learning from experience?
A Embedded systems
B Artificial intelligence
C Digital systems
D Analog systems
Artificial intelligence (AI) enables systems to improve performance by learning from experience. AI algorithms use data to make decisions, predictions, and optimizations, which allows machines to adapt and improve over time without direct human intervention.