Data Storage
Muhtasari
A computer needs two very different kinds of memory: a fast workspace it uses right now, and a roomy cupboard where everything is kept when the power is off. Choose the wrong kind and your work vanishes when you switch off, or the machine grinds to a halt waiting for data. Knowing how each type of storage works lets you explain why a phone, a laptop and a games console make the storage choices they do.
In this lesson you will separate primary from secondary storage, learn how magnetic, optical and solid-state devices actually hold their bits, see how virtual memory rescues a computer when the RAM fills up, and weigh up the real advantages and disadvantages of storing your data in the cloud instead of on the device in front of you.
Malengo
- 1 Understand what is meant by primary storage
- 2 Understand what is meant by secondary storage
- 3 Describe the operation of magnetic, optical and solid-state (flash memory) storage and give examples of each
- 4 Describe what is meant by virtual memory, how it is created and used and why it is necessary
- 5 Understand what is meant by cloud storage
- 6 Explain the advantages and disadvantages of storing data on the cloud in comparison to storing it locally
Maelezo ya Somo
Inapatikana kwenye programu ya Green Bridge
Pakua programu ya Green Bridge CBT kwenye simu yako au kompyuta yako ili kupata maelezo kamili ya masomo, maswali ya mazoezi, na mengi zaidi.
Tathmini ya Somo
Hongera kwa kukamilisha somo la Data Storage. Sasa kwa kuwa umechunguza dhana na mawazo muhimu, ni wakati wa kuweka ujuzi wako kwa mtihani. Sehemu hii inatoa mazoezi mbalimbali maswali yaliyoundwa ili kuimarisha uelewaji wako na kukusaidia kupima ufahamu wako wa nyenzo.
Utakutana na mchanganyiko wa aina mbalimbali za maswali, ikiwemo maswali ya kuchagua jibu sahihi, maswali ya majibu mafupi, na maswali ya insha. Kila swali limebuniwa kwa umakini ili kupima vipengele tofauti vya maarifa yako na ujuzi wa kufikiri kwa makini.
Tumia sehemu hii ya tathmini kama fursa ya kuimarisha uelewa wako wa mada na kubaini maeneo yoyote ambapo unaweza kuhitaji kusoma zaidi. Usikatishwe tamaa na changamoto zozote utakazokutana nazo; badala yake, zitazame kama fursa za kukua na kuboresha.
- Which statement about RAM is correct? A. it is non-volatile B. it stores the bootstrap permanently C. it is volatile and loses data when power is off D. the CPU cannot access it directly Answer: C
- Which storage type uses pits and lands read by a laser? A. magnetic B. optical C. solid-state D. virtual Answer: B
- A solid-state drive is preferred in a laptop mainly because it: A. has spinning platters B. has no moving parts C. needs an internet connection D. is a type of ROM Answer: B
- Virtual memory is created using part of the: A. ROM B. CPU registers C. hard drive D. cache only Answer: C
- One disadvantage of cloud storage is that it: A. cannot be shared B. needs an internet connection to access files C. is always slower than RAM D. is volatile Answer: B
Inapatikana kwenye programu ya Green Bridge
Pakua programu ya Green Bridge CBT kwenye simu yako au kompyuta yako ili kupata maelezo kamili ya masomo, maswali ya mazoezi, na mengi zaidi.
Inapatikana kwenye programu ya Green Bridge
Pakua programu ya Green Bridge CBT kwenye simu yako au kompyuta yako ili kupata maelezo kamili ya masomo, maswali ya mazoezi, na mengi zaidi.
Vitabu Vinavyopendekezwa
Fanya Mazoezi ya Maswali ya Majaribio
Ungependa kufanya mazoezi ya maswali ya majaribio kuhusu Data Storage? Pakua programu ya Green Bridge CBT ili kupata maswali ya majaribio na tathmini kamili za mazoezi kuhusu mada hii.
Pakua Programu Kwenye Google Playstore
Kila kitu unachohitaji ili kufaulu katika JAMB, WAEC & NECO.
