IB Computer Science Topic 3

What is the role of main memory in the von Neumann stored program concept?

• Management of peripheral devices

• Temporary storage of data and instructions

• Execution of arithmetic operations

• Long-term storage of data

Which of the following is an example of secondary storage device?

• SSD

• Cache memory

• RAM

• Registers

What are embedded systems used for?

• Executing complex algorithms

• Managing network connections

• Controlling specific functions in electronic devices

• Running operating systems

What is the purpose of file management in an operating system?

• Optimizing CPU performance

• Executing application software

• Organizing and controlling data on storage devices

• Managing user accounts

Which of the following is a functionality of utility software?

• Data encryption

• Network security

• Disc defragmentation

• Memory management

What is the importance of developing robust software?

• Optimizing network speed

• Preventing unauthorised access

• Improving user interface design

• Enhancing hardware performance

What is the purpose of clock in the fetch-decode-execute cycle?

• Controls the flow of data between CPU and memory

• Manages the execution of processes

• Stores the address of the next instruction

• Synchronizes the operations of the CPU

What is the purpose of a code review?

• To introduce more defects into the code
• To find and fix vulnerabilities, improve code efficiency, and ensure that the code meets good practice

• To slow down the development process
• To ensure that the code is never fixed

What is disk fragmentation?

• Files being stored in a single cluster on a hard disk
• Files being stored in a contiguous sequence on a hard disk
• Files being stored in non-contiguous clusters on a hard disk
• Files being stored in a cloud storage system

What type of storage should never use disk defragmentation software

• External hard drives
• Hard disk drives

• CD-ROMs
• Solid-state drives (SSD)