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Year 8 Computing > Year 8 End of Year Exam > Flashcards

Year 8 End of Year Exam Flashcards

1
Q

How is data stored in a computer?

A

Data is stored as binary.

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2
Q

What is binary adition?

A

0 + 0 = 0
0 + 1 =1
1 + 0 =1
1 + 1 = 1 carry the 1
1 + 1 + 1 = 1 carry the 1

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3
Q

What is 4 binary bits

A

Nibble

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4
Q

What is a 8 binary bits?

A

Byte

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5
Q

What is the order of the file sizes? (e.g. bit, nibble)

A
  1. Bit
  2. Nibble
  3. Byte
  4. Kilobyte
  5. Megabyte
  6. Gigabyte
  7. Terabyte
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6
Q

What does ASCII stand for?

A

American Standard Code for information interchanger.

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7
Q

What is ASCII?

A

The representation of every letter, number and symbol as a binary number.

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8
Q

How many bytes in a kilobyte

A

1000 (8000 bits)

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9
Q

How many bytes in a Megabyte?

A

1,000,000 (8,000,000 bits)

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10
Q

How many bytes in a gigabyte

A

1,000,000,000 (8,000,000,000 bits)

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11
Q

How many bits in a terabyte?

A

1,000,000,000,000 (8,000,000,000,000 bits)

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12
Q

How is sound converted into binary for a computer to understant?

A

Usually captured by a microphone and then converted into a digital signal.

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13
Q

What is a sample rate?

A

The frequency at which samples are taken.

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14
Q

What is sample rate measured in?

A

Hertz (Hz)

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15
Q

What is one sample in Hz

A

One sample per second is one Hz

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16
Q

What is an analogue to digital converter?

A

It is used to sample a sound wave at regular intervals.

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17
Q

How do computers accept data?

A

They accept it as an input, process it and then produce some form of output.

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18
Q

What is a string?

A

Words with both letters and numbers.

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19
Q

What is a syntax?

A

The spelling and grammar of a programming language.

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20
Q

What is a variable?

A

A named container for a piece of data which can be used and changed through out a program.

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21
Q

What is a float?

A

A data type for decimal numbers.

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22
Q

What is the integer data a type for?

A

Whole numbers

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23
Q

What is a HTML used for in documents?

A

It is used to design and display documents in a web browser. It is often assisted by technologies such as CSS

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24
Q

What are the most common HTML tags?

A

<img></img>
<a>…</a>

<p>...</p>

<h1>...</h1>

<body>...</body>

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25
What does ... mean?
Hyperlink
26
What does

...

mean?
Paragraph
27
What does

...

mean?
Heading 1
28
What does ... mean?
Main content
29
What does mean?
Defines an image
30
What does HTML stand for?
Hypertext Markup Language
31
What is a HTML tag?
A code that defines the structure and content of a web page. It goes at the start and end of a page.
32
What is a URL?
The URL is the location of a specific website.
33
What does URL stand for?
Uniform Resource Locator.
34
What are the features of a good website?
Informative Images Videos Interactive (buttons) Layout Consistent Colour Theme Use of font and styles
35
What are examples of how CSS is used?
You can use CSS to change the font, colour, size and spacing of your content.
36
What is CSS?
The language we use to style and layout web pages.
37
What does CSS stand for?
Cascading Style Sheets
38
What are some typical website features?
Navigation Bar Logo Home Link Search Facility Links to Social Media Header Footer Use of Images Buttons Videos Sound
39
What is data encryption?
A security method where information is encoded and can only be accessed or decrypted by a user with the correct encryption key.
40
What is router?
A device which allows for wireless connection to a network.
41
What is a Network Switch?
Connects devices together and is responsible for directing data around the network.
42
What is a server?
A computer which provides resources and or services to other connected devices.
43
What does WAN stand for?
Wide Area Network
44
What does LAN stand for?
Local Area Network
45
What is the worlds biggest WAN?
The internet
46
What is a Network?
2 or More interconnected devices
47
What does GPU stand for?
Graphics Processing Unit
48
What does a GPU do?
It is responsible for rendering the graphics on a computer.
49
What is a Hard Drive?
It provides long term data storage and when the computers is switched of all the data is revieved.
50
What does PSU stand for?
Power Supply Unit
51
What does a PSU do?
The computer is powered by it.
52
What is a Fan?
The computer is cooled by it.
53
What is a heatsink?
The heatsink moves heat away from a critical component.
54
What does RAM stand for?
Random Access Memory
55
What is a RAM?
Short term memory and when the computer is switched off it is all deleated.
56
What is a network card?
It allows the computer to access networks either wirelessly or using an Ethernet Cable
57
What does CPU stand for?
Cental Processing Unit
58
What does a CPU do?
The brain of the computer and it is in charge of processing all the instruction and data.
59
What is a Motherboard?
The component that houses other components and allows them to communicate. It has lots of things plugged into it.
60
What is BIOS?
A set of Computer instruction in firmware which controls imput and output operations.
61
What is E-saftey?
Being sage on the internet and social media.
62
What is the internet?
Network of billions of connected devices,
63
What is safe on the internet and what is not?
Only post information that is safe Cyber Bulling - report it Secure password Viruses Phishing Online responsibility
64
What is an internet browser?
An application to access a website.
65
What is decomposition?
Breaking down a complex problem or system into smaller parts that are more manageable and easier to understand.
66
What is pattern recognition?
It involves finding the similarities or patterns among small, decomposed problems that can help us solve more complex problems more efficiently.
67
What is abstraction?
It is ignoring - the characteristics that we don't need in order to concentrate on those that we do.
68
What is Pseudo Code?
A simple way of describing a set of instructions that does not have to use specific syntax.
69
How do internet browsers work?
It retrieves information from other parts of the web and displays it on your desktop or mobile device.
70
What are computer imput examples?
Keyboard Mouse Touchscreen Microphone Scanner
71
What are computer output examples?
Monitors Headphones Speakers Printers Projectors
72
What is a Flowchart?
A picture of the separate steps of a process in sequential order.
73
What is a bitmap image?
An image file format that can be used to create and store computer graphics.
74
What does the colour depth of an image mean?
The number of unique colours that can be captured by a sensor. The colour depth of the pixels in an image file depends on the number of 'bits' in the file.
75
What does a square mean in a flowchart?
Process
76
What does a oval mean in a flowchart?
Start or end
77
What does an arrow mean in a flowchart?
Connector that shows relationships between the steps.
78
What does a diamond mean in a flowchart?
Yes or No decidions
79
What does a parallelogram mean in a flowchart?
Input and output
80
What is an algorithm?
An algorithm is a plan, a set of step-by-step instructions to solve a problem.
81
What is resolution in an image metadata?
The total amount of pixels in an image

Year 8 Computing (3 decks)

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