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paige  timmis
Mapa Mental por , creado hace más de 1 año

Mapa Mental sobre 1.3 storage, creado por paige timmis el 21/11/2019.

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1.3 storageprimary storage refers to the memory areas that the cpu can access very quickly.cpu registers, cache, ROM,RAMprimary storage has the fastest read/write speed and is mostly volatilesecondary storage is non- volatileits where all data (operating system applications and user files are stored when not in use.it includes magnetic hard disk drives, solid state drives.CD,SD cardsRead/write speeds are much slower compared to primary storageHard disk drives are the traditional internal storage in PCs and laptops.a hard disk is made up of a stack og magnetised metal disks spinning at a rate of between 5400 and 15000rpm(reveloutions per minute)Data is stored magnetically in small areas called sectors within circular tracks.portable HDDs are popular for backing up and transporting large amounts of dataDespite their moving parts , HDDs are generally very long lasting and reliable.although they could be damaged by large impacts like being dropped.solid state drive (SSDs) are storage devices with no moving parts.most of them use a type of flash memorySSDs are used for the same purpose as HDDs- for internal storage.SSDs have signficantly faster read/write than HDDs. using a SSD rather than traditional HDD can give quicker times for booting up.optical discs are things like CD, DVDS and Blu-rayCDs can hold around 700MB of data. DVDs can hold around 4.7GBmagnetic tape has much greater storage capacity than HDDs.Haz doble clic en este nodo para editar el textoHaz clic en este nodo y arrástralo para crear uno nuevo