Cache Memory and Storage Devices Quiz

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Questions and Answers

What is the main difference between storage and memory devices?

Storage devices have low storage capacity and slow processing speeds.

Memory devices have high storage space and fast processing speeds.

Storage devices have high storage space and fast processing speeds.

Memory devices have low storage capacity and slow processing speeds. (correct)

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

Cache memory

ROM

RAM

USB flash stick (correct)

What is the purpose of diskettes in computing?

Act as backup for saving data

Fast processing of data

Short-term storage of programs and data

Permanent storage of programs and data (correct)

Which component is known for high storage capacity but relatively slow speed compared to memory devices?

Hard drives Signup and view all the answers

What type of device is a USB flash stick in computing?

Storage device Signup and view all the answers

Which computer component is characterized by low storage capacity and high processing speeds?

Cache memory Signup and view all the answers

What is the main difference between CD ROM and CD RW?

CD RW can be erased and rewritten, while CD ROM is read-only. Signup and view all the answers

What is the main use of DVDs?

Primarily used to store movies and computer programs Signup and view all the answers

Which disc has the highest maximum storage capacity per layer?

Bluray Disc Signup and view all the answers

What kind of content is mainly stored on Bluray Discs?

High-quality movies with vibrant colors Signup and view all the answers

What does USB stand for?

Universal Serial Bus Signup and view all the answers

What type of memory does a USB flash drive utilize?

Flash Memory Signup and view all the answers

What is the main difference between ROM and RAM?

ROM stores data permanently, while RAM stores temporary data. Signup and view all the answers

What happens to the contents of RAM when the computer is switched off?

RAM contents are lost unless saved in long-term storage. Signup and view all the answers

Which type of memory is considered 'invollatile' meaning its contents do not change?

ROM Signup and view all the answers

What is the primary function of an output device in a computer system?

To return processed information to the user in a usable format. Signup and view all the answers

Which type of monitor was commonly used before newer technologies, like LCD screens?

CRT monitors Signup and view all the answers

Why does a USB Flash drive need electricity to work?

To keep its contents from being lost. Signup and view all the answers

Study Notes

Differences Between Storage and Memory Devices

Storage devices retain data permanently, while memory devices temporarily hold data for quick access by the CPU.
Storage devices are typically slower than memory devices but offer much higher capacity.

Examples and Purposes of Storage Devices

USB flash drives are examples of storage devices and use flash memory technology.
Diskettes, also known as floppy disks, were primarily used for transferring small amounts of data and booting software.

Storage Capacity and Speed Characteristics

Hard drives are known for high storage capacity but operate slower compared to memory devices.
RAM (Random Access Memory) features low storage capacity but offers high processing speeds.

CD Formats

CD-ROM (Read-Only Memory) can only be read and not written to after its initial recording, while CD-RW (Rewritable) allows for data to be erased and rewritten multiple times.

DVD Uses and Storage Capacities

DVDs are mainly used for storing high-quality video and audio content.
Blu-ray Discs have the highest maximum storage capacity per layer compared to DVDs and CDs.

Content and Technology Terms

Blu-ray Discs primarily store high-definition video and audio.
USB stands for Universal Serial Bus.

Memory Types

USB flash drives utilize NAND flash memory, a type of non-volatile memory.
ROM (Read-Only Memory) retains data without power, while RAM (Random Access Memory) loses its contents when the computer is turned off.

Characteristics of Computer Components

Volatile memory refers to storage that loses its data when power is discontinued, such as RAM.
Output devices display or produce results from computer processes, with CRT (Cathode Ray Tube) monitors being common before LCDs took over.

Functionality of USB Drives

USB flash drives require electricity to operate due to their electronic components and to initiate data transfers.

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Description

Test your knowledge on cache memory, storage devices, and the difference between storage and memory in computers. Understand the role of cache memory as a fast intermediary saving space between the CPU and RAM to optimize CPU processing speeds.