“Random Access Memory” all the programmes and data that are currently in use are stored
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ROM
“Read Only Memory” the part of the memory that has the re-boot / boot-up programmes stored. Read only, meaning things stored here cannot be changed and/or edited
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Hard Disk
used to store data for long term
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Disk Thrashing
if you are too dependent on your virtual memory, it will make the performance slow. Also, it will start to ware down the reader heads. (Reader heads are in the hard drive). To improve the performance get more RAM instead or upgrade
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Solid State Storage
a type of flash memory use to store long term data
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Virtual Memory
temporarily transferring data from random access memory (RAM) to disk storage. Increases the available memory your computer has by enlarging the "address space," or places in memory where data can be stored.
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Flash Memory
is a non-volatile memory. It will retain its contents without power. Used for a long term basis. It’s described as a solid state storage device. No moving parts.
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CD
Optical storage, portable, storage of music + films + small files, can be scratched or warped if overheated
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CD / RW
Optical storage and is an alternative to a CD ( ITS READ ONLY DATA). Used for storing or distributing music. However, low capacity but is portable. Can be scratched and dirt can effect it.
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DVD
Optical storage and is READ ONLY. Used for films/ motion pictures/ movies. Low capacity, portable. Scratches and dirt can make it unreadable
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Blu-ray disc
Optical storage. For larger storage eg, high definition motion pictures. High capacity, portable. Downfall, is slow processing. Can be slightly more expensive than an average CD and DVD
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Paging
When the RAM is running out space, the operating system will temporarily move pages to the hard disk, when they are needed again, they will be put back into the RAM.
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Magnetic Storage
Magnetic storage devices use magnets to record data on rotating metal plates. An example of a magnetic storage is a hard disk drive.
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Optical Storage
Optical storage uses a lens and a light beam to read and write data to a disk.
- Disk space is small
- Some drivers require extra add ons
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Advantages of Magnetic Storage
- Large storage space
- Fast access to reading data
- Cheap expense
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Disadvantages to Magnetic Storage
- mechanical problems may occur, damaging data
- Not durable
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Other cards in this set
Card 2
Front
ROM
Back
“Read Only Memory” the part of the memory that has the re-boot / boot-up programmes stored. Read only, meaning things stored here cannot be changed and/or edited
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