Flashcards
Memory and Storage
Cards in this deck (18)
- 1What are the 3 types of Storage?- Primary
-Secondary
-Tertiary (Not covered in GCSE spec) - 2What is Primary Storage?- is volatile storage with exception to ROM
(Data is removed once power is lost to computer)
- Has a smaller capacity in terms of data than secondary
- has faster access speeds compared with secondary - 3What is Secondary storage?- is Non- Volatile (Data is not lost if computer loses power )
- larger capacity in terms of data compared with primary
-slower access speeds compared with primary - 4What is Cache?Is located in the CPU, Stores frequently used instructions that can be accessed faster than from RAM
- 5what IS RAM?- IS Volatile
- Larger capacity compared to ROM
-stores currently in use programs, data in use by CPU - 6What is ROM?- is Non- Volatile
- Holds the BIOS
- And the Bootstrap
- Smaller capacity compared to RAM - 7When is Virtual memory needed?- when there isn't enough space in RAM
- STORES programs that are currently not in use - 8What are the 3 types of secondary storage- Optical
- magnetic
- solid state storage - 9What are the Advantages of SSD over HDD- SSD's have a faster read/ write speeds than HDD
- SSD's dont need defragmentation
- SSD's are more durable then HDD's due to no moving parts - 10What are the Advantages of HDD's over SSD's- HDD's are cheaper in cost than SSD's
- HDD's have a longer read/write life span than SSD's - 11what are the Advantages to SSD storage?Durability, due to no moving parts
- fast read/ write speeds
-Doesn't need defragmenting
- No moving parts - 12What are the Advantages to Optical storage?Portability, can be easily distributed
Cheap to produce - 13What are the Disadvantages to SSD?- Costly
- limited number of write cycles - 14What are the Advantages to Magnetic Storage?Large storage capacity
Cheaper than SSD
Reliable if looked after properly - 15What are the Disadvantages to Magnetic storage?Not Durable
Can be noisy and generate a lot of heat
Slower read/ write speeds due to moving parts - 16What are the Disadvantages to Optical Storage?Small capacity
Durability, easy to scratch - 17What are the Factors to consider when comparing the choice of Secondary storage?1. Capacity
2. Speed
3. Portability
4.Durability
5.Reliability
6.Cost - 18What is the Mnemonic used to remember the different factors when evaluating the choice of secondary storage?1. Crazy
2. Spiders
3. Play
4. Dodgeball
5. Really
6. Cheerfully
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- GCSE Computing Flashcards on Memory and Storage, created by Crawford _Studying on 20/03/2022.
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- Crawford _Studying
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