Storage Devices And Media
Bayani Gaba-gaba
Switch a computer off and everything in its main memory vanishes. So how do your photos, documents, apps and the operating system itself survive? They live in secondary storage: the hard drive, the SSD, the memory card, the DVD. These devices hold data permanently, long after the power is gone, and they come in three great families, magnetic, optical and solid-state, each with its own way of holding the ones and zeros.
In this lesson you will learn the crucial difference between a storage device and the storage medium it reads, then explore the three technologies in turn: magnetic drives and tape, optical CDs, DVDs and Blu-ray, and solid-state SSDs, pen drives and memory cards. You will learn how each stores data, what it is best used for, and how to weigh capacity, speed, cost and portability so you can pick the right storage for any task.
Manufura
- Storage devices.
- Characteristics, uses, media, advantages and disadvantages of storage devices including magnetic, optical and solid-state Magnetic drives including fixed and portable magnetic hard drives, magnetic tape drives Optical drives including CD, DVD, Blu-ray Fixed and portable solid-state drive (SSD) including SSD, pen drive, flash drive.
- Storage media.
- Characteristics, uses, advantages and disadvantages of storage media including magnetic, optical and solid-state Magnetic drives including magnetic hard disks, magnetic tape Optical discs including CD, DVD, Blu-ray Solid-state media including memory cards (SD, xD, CFast).
Takardar Darasi
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Nazarin Darasi
Barka da kammala darasi akan Storage Devices And Media. Yanzu da kuka bincika mahimman raayoyi da raayoyi, lokaci yayi da zaku gwada ilimin ku. Wannan sashe yana ba da ayyuka iri-iri Tambayoyin da aka tsara don ƙarfafa fahimtar ku da kuma taimaka muku auna fahimtar ku game da kayan.
Za ka gamu da haɗe-haɗen nau'ikan tambayoyi, ciki har da tambayoyin zaɓi da yawa, tambayoyin gajeren amsa, da tambayoyin rubutu. Kowace tambaya an ƙirƙira ta da kyau don auna fannoni daban-daban na iliminka da ƙwarewar tunani mai zurfi.
Yi wannan ɓangaren na kimantawa a matsayin wata dama don ƙarfafa fahimtarka kan batun kuma don gano duk wani yanki da kake buƙatar ƙarin karatu. Kada ka yanke ƙauna da duk wani ƙalubale da ka fuskanta; maimakon haka, ka kallesu a matsayin damar haɓaka da ingantawa.
- Which statement correctly describes a storage medium? A. The hardware that reads and writes data B. The material on which data is actually held C. The cable connecting a drive to a computer D. The volatile main memory of a computer Answer: B
- Which storage technology uses a laser to read pits and lands? A. Magnetic B. Optical C. Solid-state D. Serial Answer: B
- Which medium is best for cheap, long-term archiving of very large amounts of data? A. SSD B. Blu-ray disc C. Magnetic tape D. Pen drive Answer: C
- Which storage device has no moving parts? A. Hard disk drive B. Magnetic tape drive C. DVD drive D. Solid-state drive Answer: D
- Compared with a CD, a Blu-ray disc has a larger capacity mainly because it uses: A. A longer-wavelength red laser B. A shorter-wavelength blue laser C. Serial access D. Magnetic coating Answer: B
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