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Computing

Solve all of the questions

State which of the following statements are true or false.
1a) A nibble is a very common unit of computer storage.
b )A byte is made up of 8 bits. c A megabyte is equal to 1024 bits.
d )One gigabyte of storage can hold about 250 high quality photos.
e )The storage capacity of most main storage drives found in computers today is measured in terabytes.
f )Computer memory is called primary storage.
g)An SSD is a type of primary storage.
h)Secondary storage holds data on a temporary basis. i Secondary storage is much larger than primary storage.

2 )Complete the following sentences with the words/letters below. Some words may be used more than once.
SSD,primary storage,HDD,memory cards

a)______holds data and instructions temporarily while processing takes place.
b)A small amount of_______ is fixed at the time of manufacture and is permanent.
c)A tablet will usually have a _________for secondary storage.
d)A smartphone would NOT use a _________ for secondary storage.
e)Four types of portable storage devices are external SSDs, external HDDs, ___________and USB drives.

3)State three devices that use memory cards.
4 a)Where are programs stored when they are being processed?
b )Why are HDD not used in tablets or smartphones?
Reply 1
Can anyone help
Reply 2
Original post by Cutiejojo
Can anyone help

Do your own homework :yy:
Who wrote this test? Some out of touch academic?

a A nibble is half a byte and therefore very common. However it's very rare to hear anyone in the industry talk about nibbles.
b Yep a Byte is 8 bits
c A megabyte is a million bytes and therefore 8 million bits.
d High quality photos? Are we talking about RAW files from 45 megapixel mirrorless or DSLR cameras - at 50 megabytes per photo (20 per gigabyte). Or some jpgs that would still be very high quality when seen on a computer screen - which might be about 250 photos per gig?
e Nobody in the industry talks about main storage. They talk about hard drives, or SSD's or disk drives. But yeah, storage capacity does tend to be in terabyte units these days instead of gigabyte.
f yeah
g False. SSD's are secondary storage
h false
i true. Almost always.

Nobody in the industry uses the term "primary storage" or "secondary storage". Instead they talk about RAM, ROM, Cache, SSD's, hard drives, mechanical hard drives ETC. IE they are more specific.

2 a primary storage
b primary storage
c memory card (they usually have soldered chips for storing info when powered off. These may use SSD technology, but they're not discrete SSD's. It's a poorly written question.)
d HDD (seems to be the best answer in this context)
e memory cards

3 DSLR / mirrorless cameras. Mobile phones. Tablets. Dashcams, remote surveillance cameras...

4 a Primary storage is the academic answer. RAM / ROM is also a valid answer.
b too big, prone to failure with the sort of bumps that phones and tablets get, slow when compared to the alternatives, typically uses 6 to 15 watts vs 1 watt for SD cards - ie battery drain.

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