COMPUTER HARDWARE COMPONENTS FUNCTIONS
EXTERNAL AND INTERNAL STORAGE DEVICES
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Question
[CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
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Use number of concentric tracks
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Once data is been recorded and the process has been finalised then the disks become Read Only.
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Storage size is smaller then CD-ROM
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Allows simultaneous read /write and great longevity
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Detailed explanation-1: -With DVD-RAM writing and reading of data can happen at the same time. They use a similar Phase Changing Recording Dye to CD/DVD-RW’s which allows DVD-RAM discs to be recorded over many times.
Detailed explanation-2: -Read-write memory (RWM) is computer memory that can be read from and written to. This type of memory can be contrasted with read-only memory, which cannot be modified after it is written.
Detailed explanation-3: -Typical secondary storage devices include magnetic tape drives, magnetic disk drives, compact optical disk drives, and archival storage devices such as disk jukeboxes. Figure 1.6. Memory hierarchy. Magnetic tape information storage provides a low-cost, high-density storage medium for low-access or slow-access data.