Brainscape's Knowledge GenomeTM

Browse over 1 million classes created by top students, professors, publishers, and experts.


See full index

Computing + definitions for chem > 1.3 Input, Output & Storage > Flashcards

1.3 Input, Output & Storage Flashcards

You may prefer our related Brainscape-certified flashcards:
Periodic Table flashcards Chemistry 101 flashcards AP® Chemistry flashcards Organic Chemistry 101 flashcards
1
Q

What are some examples of input devices?

A

keyboard
mouse
webcam
magnetic stripe reader (card reader)
barcode reader

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
2
Q

What are some examples of output devices?

A

speakers
monitors
printers
headphones

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
3
Q

What are 3 categories of storage?

A

optical
magnetic
flash/solid state

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
4
Q

What is optical storage?

A

Storage that is read from and written to using lasers. Recessed areas called PITS scatter light to represent 0. Flat portions called LANDS reflect light to represent 1.

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
5
Q

What are 3 types of optical storage?

A

CDs
DVDs
blu-ray discs

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
6
Q

What does CD stand for and what do they typically store?

A

compact discs used for storing songs, images and text

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
7
Q

What are the advantages of CDs?

A

small/thin/light - portable
cheap

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
8
Q

What are the disadvantages of CDs?

A

very low capacity
easily damaged by scratches
slow read/write speeds

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
9
Q

What is the difference between DVDs and CDs?

A

DVDs have higher storage capacities so they are typically used for storing videos/movies.

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
10
Q

What is the advantage of blu-ray?

A

Good for high resolution films as has up to 5 times the storage space of traditional DVDs.

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
11
Q

What is magnetic storage?

A

Devices that represent binary information using 2 magnetic states: polarised and unpolarised (1 and 0).

Polarised magnetic material contains aligned magnetic poles whereas unpolarised material has poles pointing in scattered directions.

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
12
Q

What are 3 types of magnetic storage?

A

hard disk drives
magnetic tape
floppy disk

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
13
Q

What are the advantages of HDDs?

A

high capacities
cheap per gb

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
14
Q

What are the disadvantages of HDDs?

A

slower read/write speeds than solid state storage

less portable

easily damaged because of moving parts

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
15
Q

What are the advantages of magnetic tape?

A

high storage capacity
durable
cheap per gb

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
16
Q

What are the disadvantages of magnetic tape?

A

slower access speeds
only accessed sequentially
heavy
noisy
sensitive to physical damage

17
Q

What is magnetic tape used for?

A

audio files
video files

18
Q

What are the advantages of floppy disks?

A

very small
portable
cheap
good for storing text documents

19
Q

What are the disadvantages of floppy disks?

A

lack of durability
low capacity

20
Q

What are the 2 main flash storage devices?

A

solid state drives
USB sticks

21
Q

What are the advantages of USB sticks?

A

fast read/write
reliable
portable
good price

22
Q

What are the disadvantages of USB sticks?

A

easy to lose
low capacity

23
Q

What are the advantages of SSDs?

A

light and portable
can have high capacities
no moving parts - durable
fast read/write speeds
reliable

24
Q

What is the main disadvantage of SSDs?

A

more expensive per gb than HDD

25
Q

What is the difference between secondary storage and RAM

A

Secondary storage is non-volatile so it retains its content without power.

RAM is volatile so it can’t retain its content without power.

26
Q

What are the 2 types of memory?

A

RAM random access memory
ROM read only memory

27
Q

What is the purpose of RAM?

A

Temporarily stores data and programs that are currently in use.

28
Q

What is the purpose of ROM?

A

Stores fixed sequences of instructions such as a computer’s bootstrap routine. (startup program)

29
Q

What is virtual storage?

A

Storing information remotely so that it can be accessed by any computer on the system over the internet or in a network.

30
Q

Which is volatile and which isn’t out of RAM and ROM?

A

ROM is non volatile like secondary storage whereas RAM is volatile.

31
Q

What are 2 examples of virtual storage?

A

Cloud storage services like google drive

Networked storage used for offices and schools

32
Q

What are the advantages of virtual storage?

A

don’t need to buy hard drives for each computer

convenient to access and share files

33
Q

What are the disadvantages of virtual storage?

A

high cost of cloud storage warehouses

performance limited by user’s network speed

Computing + definitions for chem (20 decks)

Brainscape helps you reach your goals faster, through stronger study habits.
© 2024 Bold Learning Solutions. Terms and Conditions