it is a removable storage device
yes it can
Yes. DVDs can be used for data storage as well as playing movies.
how much the CD storage
Blu-Rays can hold up to a maximum of 50 GB of data, which is 5 times more data storage than DVDs
optical storage technology
Primary storage, also known as main memory or internal memory, refers to the storage space in a computer that is directly accessible to the processor. Primary storage is typically used to store data and instructions that are currently being used or processed by the computer. Secondary storage, also known as external memory, refers to storage space that is not directly accessible to the processor, but is used to store data and instructions for longer periods of time. Secondary storage is typically used to store data that is not currently being used, but that needs to be kept for future reference. There are several key differences between primary storage and secondary storage: Speed: Primary storage is generally faster than secondary storage, as it is directly accessible to the processor. This means that the processor can access and retrieve data from primary storage more quickly than it can from secondary storage. Capacity: Primary storage is typically smaller in capacity than secondary storage. This is because primary storage is used to store data that is currently being used or processed, while secondary storage is used to store data that is not currently being used. Cost: Primary storage is typically more expensive than secondary storage, as it requires faster and more expensive memory chips. Volatility: Primary storage is generally volatile, meaning that it is lost when the power is turned off. In contrast, secondary storage is non-volatile, meaning that it retains data even when the power is turned off. Location: Primary storage is located inside the computer, while secondary storage is typically external to the computer and is connected to the computer through a port or interface.
A data storage device is a device used for storing various forms of information. Some typical forms of data storage devices include CDs, DVDs, sim cards, memory cards, and USB flash drives.
A storage device is piece of hardware which is used to store and save digital data. Typical examples of which are hard drives, Floppy disks CDs and DVDs, which are used in computers, ipods and Personal Video Recorders.
Quite frankly, I wouldn't. A DVD just doesn't hold enough data to be useful for "large amounts of storage". A regular DVD only holds about 4Gb of data. You would be much better off with something like a 1TB (or higher) USB drive.
no. Its a completely different laser assembly and data storage method you moron
We don't "need" them, but they are useful for data storage such as general computer data, photographs and videos. As they have got bigger, some DVDs are not as good, so technology moves on to provide larger storage devices, so some people no longer use DVDs, like they no longer us floppy disks, tape and other older storage devices.
Secondary storage is a device that are not attached to the computer; however, it can be inserted in order to archive additional data. Examples of secondary storage include CDs, DVDs, and floppy discs.