A3 - 3 - Part 4 - File types

Question 1

GIF

Answer 1

👍 Small file size

👍 Displays basic transparency and animation

👎 low quality due to limited number of colours

Question 2

JPG

Answer 2

👍 good compression
👎 files cannot be decompressed

Question 3

PNG

Answer 3

👍 use lossless compression to save high quality images in a low file size and allows transparency
👎 Not universally supported

Question 4

BMP

Answer 4

👍 uncompressed file format with high quality image
👎 large file size

Question 5

AVI (Audio Video Interleave)

Answer 5

• Versatile which makes it compatible with Windows, Linus, Mac
• Supported by most web browsers
• Can create video files without compression, which makes the files lossless and it will keep its quality over time

Question 6

WMV (Windows Media Video)

Answer 6

• Developed by Microsoft so this type of file can generally be played on Windows media players

-Not compatible with Apple devices, however, windows media player can be downloaded to play on iPhone/Mac

• The quality is generally higher which makes the file size quite large

Question 7

MOV

Answer 7

-Compatible with Windows and Mac platforms

• Specifically designed for QuickTime players
• Can store video effects, but because the quality is generally high, therefore the file size is quite large
• Uses lossless video compression, when uncompressed there is no loss of data

Question 8

AVCHD

Answer 8

• Used for HD video playback and digital recording
• Using compression, it allows storage of high-quality video using a small amount of data
• Supports 3D video

Question 9

Codec

Answer 9

A video codec issoftware or hardware that compresses and decompresses digital video

Codec is needed to view the video (1)

Will improve viewing when using a slow connection/ bandwidth (1)

Codec reduce the size/compress the video file (1)