Flashcards
Secondary Storage
Cards in this deck (23)
- 1What is secondary storage?Secondary storage is a type of storage that is non-volatile and will hold data until it is deleted or overwritten
- 2What is Magnetic storage?Magnetic storage is a type of storage that magnetises something and uses its north and south poles to represent 1s and 0s
- 3Give an example of a Magnetic storage?Hard drive
- 4What is optical storage?Optical storage is a type of storage that uses the shiner or more reflective parts of a disk present the 1s or 0s
- 5Give an example of an Optical storage?CDs or DVDs
- 6What is solid state (or flash) storage?Solid state storage is a type of storage that represents the 1s and 0s using little pools of trapped electrons on a microchip
- 7Give an example of solid-state storage?USB memory sticks or SD cards
- 8At what speed does the disk in a hard disk spin?110 km/h
- 9What is the first step in reading data from a hard disk?The arm moves across to be above the right track
- 10What is the second step in reading data from a hard disk?The required sector comes around under the head
- 11What is the third step in reading data from a hard disk?The magnetised surface induces a tiny current in the head
- 12What is the fourth/final step in reading data from a hard disk?The disk controller translates this into 1s and 0s
- 13Is data reading from a hard disk immediate?No, there is a latency between the seek time and the sector coming under the head
- 14What is the first step in reading data from a Disk?The disk spins in the drive to ensure all data can be read
- 15What is the second step in reading data from a Disk?The tracking mechanism moves the laser into the correct position over the disk
- 16What is the third step in reading data from a Disk?The laser shines on the disk and is reflected back on to a light sensor
- 17What is the fourth step in reading data from a Disk?Signals from the sensor are translated into 1s and 0s
- 18What is the first step in reading data from a flash drive?Control signals identify which bit is to be read out and apply a small voltage
- 19What is the second step in reading data from a flash drive?If the electron pool is empty the transistor doesn't turn on and a 0 is read out
- 20What is the third step in reading data from a flash drive?If the electron pool is full the transistor turns on and a 0 is read out
- 21What is the fourth step in reading data from a flash drive?The controls signal are changed to read other bits
- 22What is the fifth step in reading data from a flash drive?When data is written to the chip, control signals identify which bit is to be written and apply a higher voltage
- 23What is the sixth/final step in reading data from a flash drive?This pulls electrons into the pools of those transistors, recording the 1s and 0s
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- Flashcards on Secondary Storage, created by Nintendo Hoppy on 18/03/2018.
- Created by
- Nintendo Hoppy · Mar 2018
- Updated
- Mar 21, 2018
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