Computer Hardware Basics

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What is the primary function of the Power Supply Unit (PSU) in a computer?

To display the results of computer processing

To store data and programs

To provide a consistent and regulated power supply to the components (correct)

To convert DC power to AC power

What type of devices allow users to input data and commands into the computer?

Output devices

Input devices (correct)

Peripheral devices

Storage devices

What is the main advantage of Solid-State Drives (SSDs) over Hard Disk Drives (HDDs)?

Faster data access speeds (correct)

Better durability

Lower cost

Larger storage capacities at a lower cost

What is the primary purpose of peripheral devices in a computer system?

To enhance the functionality of the computer Signup and view all the answers

What type of devices are used to store data and programs in a computer system?

Storage devices Signup and view all the answers

What is the main difference between Hard Disk Drives (HDDs) and Solid-State Drives (SSDs)?

HDDs use spinning disks and magnetic heads to read and write data Signup and view all the answers

What is the primary function of the most significant bit in the two's complement representation?

To indicate the sign of the number Signup and view all the answers

What is the total number of possible characters that can be represented using ASCII?

128 Signup and view all the answers

What is the primary purpose of character encoding schemes such as ASCII?

To ensure consistent data processing and exchange Signup and view all the answers

In which type of endianess system is the most significant byte stored at the lowest memory address?

Big-endian Signup and view all the answers

What is the advantage of using two's complement representation for arithmetic operations?

It is more efficient for performing arithmetic operations Signup and view all the answers

What is the term used to describe the order in which bytes are stored in computer memory?

Endianess Signup and view all the answers

What is the primary goal of encapsulation in Object-Oriented Programming?

To provide data hiding and abstraction Signup and view all the answers

What type of programming error occurs when the code violates the rules of the programming language?

Syntax error Signup and view all the answers

Which of the following is a benefit of using Object-Oriented Programming?

Easier maintenance and code reuse Signup and view all the answers

What technique involves examining the code for logical inconsistencies and potential errors?

Code review Signup and view all the answers

What is the purpose of a class in Object-Oriented Programming?

To provide a blueprint for creating objects Signup and view all the answers

What is the term for the ability of objects to interact with each other through well-defined interfaces?

Abstraction Signup and view all the answers

What is the primary reason for computers using the binary system?

It aligns with the underlying electronic nature of computers Signup and view all the answers

What is the purpose of converting numbers between different bases?

To provide a more compact representation of data Signup and view all the answers

What is the benefit of using the two's complement method?

It allows for efficient arithmetic operations on signed numbers Signup and view all the answers

What is the advantage of using hexadecimal in programming?

It provides a more compact representation of binary data Signup and view all the answers

What is the process of converting binary to hexadecimal?

Grouping binary digits into sets of four and replacing each set with its corresponding hexadecimal digit Signup and view all the answers

What is the primary factor in choosing a storage technology?

Balancing factors such as speed, capacity, and cost Signup and view all the answers

What is the primary function of a subnet mask?

To determine the network address Signup and view all the answers

At which layer of the network protocol stack does a switch operate?

Data link layer Signup and view all the answers

What is the main difference between a switch and a router?

Switches are used for forwarding data packets within a network, while routers are used for forwarding data packets between networks Signup and view all the answers

What is the purpose of IP addresses?

To enable devices to communicate with each other over the internet Signup and view all the answers

What is the main function of a router?

To forward data packets between different networks Signup and view all the answers

What are the two main types of IP addresses?

Private and public Signup and view all the answers