Systems Architecture

What are the two main components of a CPU responsible for executing instructions and performing calculations?

• • RAM and ROM

• • ALU and Control Unit

• • Hard Drive and Optical Drive

• • Monitor and Keyboard

What is the purpose of the Control Unit in a CPU?

• • It performs arithmetic and logical operations.

• • It stores data temporarily for quick access.

• • It fetches and decodes instructions.

• • It manages secondary storage devices.

How does the data stored in RAM differ from data stored in secondary storage, such as a hard drive?

• RAM data is permanent, while data on a hard drive is temporary.

• RAM data is non-volatile, while hard drive data is volatile.

• Data in RAM and on a hard drive is identical and can be used interchangeably.

• RAM data is faster to access but lost when the computer is turned off, whereas hard drive data is slower to access but retained when the computer is powered down.

What is clock speed in the context of CPU performance?

• • It refers to the CPU's physical size.

• • It is the rate at which the CPU processes data and instructions.

• • It indicates the number of CPU cores.

• • It measures the CPU's storage capacity.

Fill in the missing word: The Fetch **** Execute Cycle

How does increasing the number of CPU cores typically affect a computer's performance?

• • It has no effect on performance.

• • It reduces power consumption.

• • It decreases performance.

• • It significantly improves multitasking and parallel processing.

How does the data stored in RAM differ from data stored in secondary storage, such as a hard drive?

• • RAM data is non-volatile, while hard drive data is volatile.

• • RAM is faster to access but data is lost when the computer is turned off, whereas hard drives are slower to access but data is retained when the computer is powered down.

• • Data in RAM and on a hard drive is identical and can be used interchangeably.

• • RAM data is permanent, while data on a hard drive is temporary.

What is the primary function of cache memory in a computer system?

• • Cache memory temporarily stores frequently used data for quicker access by the CPU.

• • Cache memory stores data for long-term archiving.

• • It is responsible for storing the operating system.

• • It acts as a backup for the hard drive.

Which secondary storage device uses a spinning disk to store data?

• • Hard drive (HDD)

• • SSD

• • USB flash drive

• • CD-ROM

What type of secondary storage device is known for its portability and is often used to transfer files between computers?

• • SSD

• • Optical disc (e.g., DVD)

• • Magnetic tape

• • USB flash drive