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Audio Visual -  B & W Image & Data Representation

Audio Visual - B & W Image & Data Representation

Assessment

Presentation

•

Computers

•

8th Grade

•

Medium

Created by

Ayomikun J Sodipe

Used 6+ times

FREE Resource

33 Slides • 12 Questions

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Multiple Choice

What is Binary?

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A system that uses 10 digits

2

A system that uses 2 digits

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A system that uses 8 digits

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A system that uses 16 digits

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Multiple Choice

What is Denary?

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A system that uses 2 digits

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A system that uses 8 digits

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A system that uses 16 digits

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A system that uses 10 digits

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Multiple Choice

What are the Binary Digits 0 and 1 called?

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Units

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Bytes

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Bits

4

Nibbles

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Multiple Choice

What is meant by Data Representation?

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Data representation refers to the visual display of data in charts and graphs.
2

How data is organized and represented in a way that computers can understand and process.

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Data representation is the process of deleting unnecessary data from a database.
4
Data representation is the physical storage of data on a hard drive.

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Multiple Choice

What is a pixel?

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A type of computer memory

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The smallest unit of a digital image (tiny square)

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A programming function

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A colour format

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Multiple Choice

How are colours stored in a computer?

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Using numbers and letters

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As shades of grey only

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In a hexadecimal format

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Using pixels and numeric codes

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Multiple Choice

What is colour depth?
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The number of colours that can be represented in an image
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How deep you can go with certain greys and blues
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A high concentration of pixels
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How many deep colours you can show

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Multiple Choice

Question image

How many colours are used to create this image?

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Multiple Choice

How many pixels would a 20x20 image have?
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100
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200
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400
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800

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RESOLUTION CALCULATION:

Resolution refers to the number of pixels in an image, often described as width × height (e.g., 1920 × 1080).

Higher resolution means more detail, but it also increases the file size since more pixels need to be stored.

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FILE SIZE CALCULATION:


File Size (in bits) = Width (in pixels) × Height (in pixels)× Colour Depth (in bits)

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Fill in the Blanks

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If the basic unit of matter is an atom,

then the basic unit of a digital image is a

Type answer...

.

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Multiple Choice

Question image

How many unique colours are used in this image?

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Multiple Choice

Question image

This grid has 21 columns and 18 rows.

How many pixels are used to represent the image?

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480

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378

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256

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118

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ACTIVITY

GO TO TEAMS CLASS NOTE BOOK
COMPLETE ACTIVITY 1, 2, & 3.

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