Storage Devices And Media
Gbogbo ọrọ náà
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.
Ebumnobi
- 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).
Akọmọ Ojú-ẹkọ
Ọ dị na ngwa Green Bridge
Budata ngwa Green Bridge CBT na ekwentị maọbụ kọmputa gị iji nweta akwụkwọ ndụmọdụ zuru oke, ajụjụ mmụta, na ndị ọzọ.
Ayẹwo Ẹkọ
Ekele diri gi maka imecha ihe karịrị na Storage Devices And Media. Ugbu a na ị na-enyochakwa isi echiche na echiche ndị dị mkpa, ọ bụ oge iji nwalee ihe ị ma. Ngwa a na-enye ụdị ajụjụ ọmụmụ dị iche iche emebere iji kwado nghọta gị wee nyere gị aka ịmata otú ị ghọtara ihe ndị a kụziri.
Ị ga-ahụ ngwakọta nke ụdị ajụjụ dị iche iche, gụnyere ajụjụ chọrọ ịhọrọ otu n’ime ọtụtụ azịza, ajụjụ chọrọ mkpirisi azịza, na ajụjụ ede ede. A na-arụpụta ajụjụ ọ bụla nke ọma iji nwalee akụkụ dị iche iche nke ihe ọmụma gị na nkà nke ịtụgharị uche.
Jiri akụkụ a nke nyocha ka ohere iji kụziere ihe ị matara banyere isiokwu ahụ ma chọpụta ebe ọ bụla ị nwere ike ịchọ ọmụmụ ihe ọzọ. Ekwela ka nsogbu ọ bụla ị na-eche ihu mee ka ị daa mba; kama, lee ha anya dị ka ohere maka ịzụlite onwe gị na imeziwanye.
- 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
Ọ dị na ngwa Green Bridge
Budata ngwa Green Bridge CBT na ekwentị maọbụ kọmputa gị iji nweta akwụkwọ ndụmọdụ zuru oke, ajụjụ mmụta, na ndị ọzọ.
Ọ dị na ngwa Green Bridge
Budata ngwa Green Bridge CBT na ekwentị maọbụ kọmputa gị iji nweta akwụkwọ ndụmọdụ zuru oke, ajụjụ mmụta, na ndị ọzọ.
Àwọn Ìwé Tó Dáa Láti Kà
Meecha Ajụjụ Ule Ọmarịcha
Ị chọrọ ime ajụjụ ule ọmarịcha gbasara Storage Devices And Media? Budata ngwa Green Bridge CBT iji nweta ajụjụ ule ọmarịcha na nyocha zuru ezu gbasara isiokwu a.
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