1.3 Input, Output & Storage (OCR A Level Computer Science) Flashcards
Exam code: H446
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Define secondary storage device.
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Define secondary storage device.
A secondary storage device is a hardware component that retains digital data within a computer system.
What are the three main types of storage devices in computer systems?
The three main types of storage devices are magnetic, optical, and flash.
Magnetic storage devices, such as hard disk drives, store data by particles on a disk or tape.
Magnetic storage devices, such as hard disk drives, store data by magnetising particles on a disk or tape.
True or False?
Solid-state drives (SSDs) have moving parts.
False.
Solid-state drives (SSDs) do not have moving parts, which makes them more durable.
Optical storage devices store data using a to burn pits into the surface of the disc.
Optical storage devices store data using a laser to burn pits into the surface of the disc.
What is one main drawback of flash storage devices?
One main drawback of flash storage devices is that flash memory cells can wear out after a certain number of write cycles.
A USB flash drive typically has a storage capacity between and .
A USB flash drive typically has a storage capacity between 8GB and 256GB.
Define virtual storage.
Virtual storage (cloud storage) is a model where digital data is stored across multiple servers and locations, typically hosted by third parties and accessed over the internet.
Why is virtual storage important in the digital age?
Virtual storage is important because it provides scalable, off-site storage with redundancy and backup, helping manage the growing amount of digital data and reducing the risk of data loss.
Virtual storage allows data to be accessed from with an internet connection.
Virtual storage allows data to be accessed from anywhere with an internet connection.
True or False?
Virtual storage and virtual memory refer to the same concept.
False.
Virtual storage is about cloud-based data storage, while virtual memory is using secondary storage as RAM when needed.
What is an input device?
An input device is a hardware component that allows users to enter data or commands into a computer system.
A device that produces a hard copy of digital documents or images is called a .
A device that produces a hard copy of digital documents or images is called a printer.
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