Question

which of the following is not a random access device.
(1) tape
(2) DVD
(3) Blu-raydisk
(4) CD
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Answer 1

Answer:

CD is a Sequential Access Device...

Explanation:

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Answer 2

Answer is option "4"

Explanation:

• Random-access memory (RAM) is a type of computer data storage. A RAM device makes it possible to access data in random order, which makes it very fast to find a specific piece of information. Certain other types of storage are not random-access. For example, a hard disk drive and a CD will read and write data in a predetermined order. The mechanical design of these devices prescribes that data access is consecutive. This means that the time it takes to find a specific piece of information can vary greatly depending on where it is located on the disk
• RAM devices are used in computer systems as the main memory. RAM is considered volatile memory, which means that the stored information is lost when there is no power. So, RAM is used by the central processing unit (CPU) when a computer is running to store information that it needs to be used very quickly, but it does not store any information permanently
• Hence, the right answer is option 4 "CD"