what is the difference between optical magnetic and solid state storage?
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The key difference between optical storage media, such as CDs and DVDs, and magnetic storage media, such as hard drives and old-fashioned floppy disks, is in how computers read and write information to them. One uses light; the other, electromagnetism. Hard drive disks with read/write heads.
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An optical disk drive uses a laser to read and write data. ... An optical drive that works with all types of discs will therefore have two separate lenses: one for CD/DVD and one for Blu-ray.
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Creating the drive Solid state drives use flash memory chips to store information, an SSD is made of several memory chips installed on a circuit board. Micron manufactures the flash memory chips in‑house on silicon wafers, similar to how Micron makes its computer memory.
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RAM (or random access memory) is volatile(stops storing data once it powers off), very fast memory, that temporarily 'holds' data, like a word document before you save it. SSD (or solid state drive), on the other hand, is a non volatile storing device, like a saved word document.
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The term memory refers to the amount of RAM installed in the computer, whereas the term storage refers to the capacity of the computer's hard disk. ... When you come in to work, you take out the files you need from storage and put them on your desk for easy access while you work on them.
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There are no moving parts, and separate media is not necessary to read or record data. This type of storage media is called solid state memory, and differs from optical and magnetic drives.
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Like memory stick storage, there are no moving parts to an SSD. ... Conversely, a hard disk drive uses a mechanical arm with a read/write head to move around and read information from the right location on a storage platter. This difference is what makes SSD speed so much faster.
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Hybrid hard drives promise some of the performance of a solid-state drive with the capacity of a mechanical drive. They're bigger than an SSD and faster than a plain-old mechanical drive. ... The drive automatically caches data in the solid-state storage for you, offering faster speeds for the files you use most.
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So if you have a flash device in the shape of a 2.5" drive it is an SSD. MacBook Airs, Retinas, new iMacs, and the new Mac Pro all use PCIe form factors giving even better performance. Therefore, the answer to your question is No; Flash Memory is not the same thing as a Solid State Drive.
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SSDs serve the same purpose as HDDs: they store data and files for long-term use. The difference is that SSDs use a type of memory called “flash memory,” which is similar to RAM—but unlike RAM, which clears its data whenever the computer powers down, the data on an SSD persists even when it loses power.
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Because it uses integrated circuit technology, flash storage is a solid-state technology, meaning it has no moving parts. When flash technology is used for enterprise storage, the term flash drive or flash array is often used interchangeably with solid-state drive (SSD).
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An erasable optical disk is the one which can be erased and then loaded with new data content all over again. ... These are based on a technology popularly known as Magnetic Optical which involves the application of heat on a precise point on the disk surface and magnetizing it using a laser.
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The hard disk, sometimes called the "hard drive" (which is actually the mechanism that holds the hard disk), is a spindle of magnetic discs that can hold several gigabytes of data. ... Memory, on the other hand, is not the same as disk space! Memory refers to the random access memory (RAM) inside your computer.
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The difference between hard drives and solid state drives is in the technology used to store and retrieve data. ... HDDs are cheaper and you can get more storage space. SSDs, however, are faster, lighter, more durable, and use less energy. Your needs will dictate which storage drive will work best for you.
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The Difference Between DVD-R & CD-R. CD-R and DVD-R are optical disc storage formats. ... DVD-R discs have much more storage space, but CD-R discs work with more devices. CD-Rs are an older medium, but they still get the job done, although USB flash drives have replaced the role of CD-R and DVD-R discs in many cases.
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Unlike floppy diskettes, USB drives are not prone to magnetic interference and surface scratches do not harm them or the data in comparison to a CD. In addition, USB drives are faster, more durable and reliable and come with different ranges of storage capacity.
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SSD vs. HDD. Because it uses integrated circuit technology, flash storage is a solid-state technology, meaning it has no moving parts. When flash technology is used for enterprise storage, the term flash drive or flash array is often used interchangeably with solid-state drive (SSD).