Memory and Secondary Storage (AQA GCSE Computer Science): Quizzes
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12 questions from this quiz
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Practise the questions
12 questions from this quiz
What happens to data stored in RAM when the computer is turned off?
What happens to data stored in RAM when the computer is turned off?
It is lost completely
What is the primary purpose of ROM in a computer system?
What is the primary purpose of ROM in a computer system?
Stores essential startup instructions
Which characteristic distinguishes RAM from ROM?
Which characteristic distinguishes RAM from ROM?
RAM is volatile, ROM is non-volatile
Why is secondary storage essential for computer systems?
Why is secondary storage essential for computer systems?
RAM is volatile and loses all data
At what typical speed do HDD platters rotate?
At what typical speed do HDD platters rotate?
5,400 to 7,200 RPM
How does magnetic storage represent binary data on hard disk platters?
How does magnetic storage represent binary data on hard disk platters?
North for '1' and south for '0'
What is a key advantage of SSDs over HDDs?
What is a key advantage of SSDs over HDDs?
Much faster access speeds
How long does an SSD typically take to boot an operating system compared to an HDD?
How long does an SSD typically take to boot an operating system compared to an HDD?
10-15 seconds vs 30-60 seconds
What is the storage capacity of a single-layer DVD?
What is the storage capacity of a single-layer DVD?
4.7GB
How does optical storage read data from discs?
How does optical storage read data from discs?
Laser light scatters off pits/flats
What is a key disadvantage of cloud storage?
What is a key disadvantage of cloud storage?
Requires internet connection
Which storage type is ideal for operating systems and frequently-used applications?
Which storage type is ideal for operating systems and frequently-used applications?
Solid-state storage