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Computer Science: Frankie > SLR3 > Flashcards

SLR3 Flashcards

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1
Q

What is an input device

A

A device that allows you to pass information from outside the computer to inside the computer.

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2
Q

Give some examples of input devices

A
  1. Microphone
  2. Camera
  3. Keyboard
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3
Q

What is an output device

A

A device that takes data stored in a digital format and converts it into a format humans can understand

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4
Q

Give some examples of output devices

A
  1. Monitor
  2. Speaker
  3. Vibration (Phone, PlayStation controller)
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5
Q

What is a storage device

A

A device that is used for the perminant or tempory storage of any data

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6
Q

Give some examples of internal storage devices

A
  1. SSD
  2. RAM
  3. Main Memory
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7
Q

Give some examples of external storage devices

A
  1. Memory card
  2. USB
  3. DVD
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8
Q

Define the term drive

A

A device that reads and writes data from secondary storage

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9
Q

Define the term media

A

A device the data is actually stored on

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10
Q

Give 3 positives of optical media

A
  1. Cheap
  2. Light-Weight
  3. Portable
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11
Q

Give 3 negatives of optical media

A
  1. Fradgle
  2. Small amounts of storage
  3. Slow access times
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12
Q

How are 1s and 0s represented of optical media

A

Pits and Lands

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13
Q

Give 2 positives of magnetic storage

A
  1. Large Storage
  2. Cheap
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14
Q

Give 3 negatives of magnetic storage

A
  1. Fradgle
  2. Noisy
  3. Slow
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15
Q

How is magnetic storage read

A

Spinning disk and arm

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16
Q

Give 4 positives of SSD

A
  1. Portable
  2. Fast
  3. Quiet
  4. Durable
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17
Q

Give 2 negatives of SSD

A
  1. Limited number of uses
  2. Expensive
18
Q

How does SSD work

A

SSDs have flash memory chips that allow data to be stored on the SSD card without being connected to power. Data can be written and read with the passing of electrons.

19
Q

What does ROM stand for

A

Read-Only Memory

20
Q

What is ROM and what does it contain

A

A small piece of Read-Only Memory. Containing the bootstrap

21
Q

What is the Bootstrap

A

The start-up instructions for the computer

22
Q

Is ROM volatile

A

No

23
Q

What does RAM stand for

A

Random Access Memory

24
Q

What is RAM

A

A temporary storage for data and instructions

25
Q

What does RAM contain

A

Information being executed by the processor

26
Q

Is RAM volatile

A

Yes

27
Q

Define volatile

A

Requires power to maintain storage

28
Q

When first starting up a computer what is in the CPU

A

Nothing

29
Q

What does the system need before it can start functioning

A

The Operating System

30
Q

Why can’t the computer load the operating system

A

The computer is not yet aware of it’s existence

31
Q

How does the computer load the operating system

A

The bootstrap code is loaded off the ROM

32
Q

Once the bootstrap has been loaded what does the ROM do

A

ROM performs POST

33
Q

What is POST

A

Power On Self-Test

34
Q

What does POST do

A

Wakes up all connected components and makes the CPU aware of their existence

35
Q

What happens to ROM when POST is completed

A

The instructions remain in ROM as it is volatile

36
Q

What is the final step of booting up a computer

A

Loading the operating system into RAM

37
Q

What is Virtual Storage often referred to as

A

Cloud storage

38
Q

What is Virtual Storage

A

Storing and retrieving data veer the internet rather than a local device

39
Q

What are the 4 advantages of Virtual Storage

A
  1. Data can be accessed at any time from any device
  2. Data can be easily transferred
  3. Easy to collaborate
  4. Limitless storage from the user’s POV
40
Q

What are 3 disadvantages of Virtual storage

A
  1. Can become expensive for the user
  2. If the internet is slow, slow access times
  3. cannot access files without access to the internet
41
Q

Where is Virtual storage actually stored

A

On a site server farm/storage farm where users pay a monthly subscription to use that storage.

Computer Science: Frankie (25 decks)

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