10 Questions
Which of the following is NOT a function of utility software?
Scrambling data
What is the purpose of device drivers in an operating system?
To communicate with internal hardware and peripherals
What is the main function of defragmentation software?
To fix fragmented storage
What is the purpose of encryption software?
To scramble data
What is the function of multitasking operating systems?
To divide CPU time between applications
Which component of the CPU is responsible for coordinating the activities of the CPU and performing the FDE cycle?
Control unit
Which component of the CPU performs logical and arithmetic calculations?
ALU
Which type of memory in the CPU stores regularly used data and is super fast?
Cache memory
Which architecture is characterized by the CPU running programs stored in main memory and using one memory for both data and instructions?
Von Neumann architecture
Which type of memory is used when RAM is full and is slower than RAM?
Virtual memory
Study Notes
Computer System Components and Functions
- A computer system consists of hardware and software working together to process data.
- The CPU (central processing unit) is responsible for processing data and instructions.
- The CPU consists of the control unit, ALU, cache memory, and registers.
- The control unit coordinates the activities of the CPU and is responsible for the FDE cycle.
- The ALU performs logical and arithmetic calculations.
- Cache memory is super fast memory in the CPU that stores regularly used data.
- Registers such as MAR, MDR, ACC, and PC hold memory addresses, data, and instructions.
- The Von Neumann architecture is characterized by the CPU running programs stored in main memory and using one memory for both data and instructions.
- The FDE cycle involves fetching, decoding, and executing instructions.
- RAM is the main memory where data and programs in use are stored.
- Virtual memory is used when RAM is full and is slower than RAM.
- Secondary storage, such as solid state, magnetic, and optical storage, is used for storing data not in use.
Test your knowledge of computer system components and their functions with this quiz. Learn about the CPU, cache memory, registers, Von Neumann architecture, RAM, virtual memory, and secondary storage. Challenge yourself to understand how hardware and software work together to process data in a computer system.
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