file types

Question 1

file types

Answer 1

• different files used to structure and form the data stored in the file

Question 2

GIF

Answer 2

+ small file size

• low quality due to limited number of colours (basic animation)

Question 3

JPG

Answer 3

+ good compression

• compression is lossy so can’t be decompressed

Question 4

PDF

Answer 4

• represents data independently of original software

Question 5

PNG

Answer 5

+ use lossless compression to save high quality images in low file size
+ allows transparency

Question 6

MP4/MP3

Answer 6

+ supports high quality video whilst compressed

+ works on various devices and software

Question 7

implications: compatibility

Answer 7

• some files only work with certain software

- so may need to purchase new software

Question 8

implications: quality

Answer 8

• different image, video and audio file types provide levels of quality

Question 9

implications: file size

Answer 9

• some types are efficient but some use lots of storage space