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∙ 11y agoBecause tapes are best read in a forward motion.
To access a tape randomly would be extremely slow. You would have to continually rewind and check if the data was the reverse of what you were looking for.
It is very impractical and slow.
Tapes are good for storing large amounts of data cheaply and securely. (IE, smaller risk of failure, low cost per TB, easy to store in a bank vault or warehouse.)
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∙ 11y agoRandom Access Memory, as verses Sequential Access Memory (delay lines, magnetic tape, magnetic drum, magnetic disk, etc.)
Advantages: One of the cheapest forms of data storage. Disadvantage: low density (bulky), not random access (slow).
Sequential access memory. Typically implemented with long shift registers, acoustic delay lines, or fixed head magnetic drums/disks.
Yes, or at least Mostly Yes. RAM is random (RAM=Random Access Memory) and most forms of RAM today are volatile. But magnetic core memory (from the 1950s, now only available in museums) is not.
RAM is for Random Access Memory and it is used as sort of a temporary data holding place for the CPU (Central Processing Unit). It holds the code of the program you are running and data being processed.
random access memory
I think the answer you're looking for is disk storage... But I'm not positive!
Random Access Memory
Magnetoresistive Random Access Memory
Random access memory.
Random Access Memory.
Random Access Memory