File Types 5

Question 1

GIF

Answer 1

Small file size, but low quality due to limited number of colours. Can display basic transparency and animation. GIFs can be used for small animations and low-resolution video clips

Question 2

JPEG

Answer 2

JPEG is the most common format for storing and transmitting photographic images on the World Wide Web. JPEG compression is used in a number of image file formats.

Question 3

BMP

Answer 3

An uncompressed file format, so image quality is extremely high size is very large.

Question 4

PNG

Answer 4

Uses lossless compression to save high-quality images in a low file size. Also allows transparency.

Question 5

DOC/ RTF

Answer 5

Commonly used file formats for documents created using word processing software.

Question 6

XLS

Answer 6

A common format for files created using spreadsheet software

Question 7

MDB/ ACCDB

Answer 7

Common file types for database software

Question 8

PPT

Answer 8

A common life shows created using presentation software

Question 9

ODF

Answer 9

An open source XML based format used to represent office files such as spreadsheets, word processing

Question 10

AVI

Answer 10

Uncompressed so is very high quality but very large file size. Not good for streaming

Question 11

MP4

Answer 11

Supports high quality video while still compressing file size. Works on a variety of devices and software

Question 12

MOV

Answer 12

Designed for use with apple quick time software but it can be played using other software.can provide high quality but can also be compressed. Good for streaming

Question 13

MKV

Answer 13

Supports high quality video playback but is not well supported by some devices, eg iPads can’t play. MKV files

Question 14

Compatibility issues

Answer 14

Some files may only work on certain software, the user may need to purchase new software. Sharing files with others may not be successful if they do not have the required software on their devises. Users might not need to install software on devices. Users might need to install software on devices which could cost money

Question 15

Quality issue

Answer 15

Different image, video and file types provide a varying level of quality. Choice will depend on the intended use of the file. If a very high quality image file is needed then a BMP would be the suitable choice whereas if the image is needed for a website then a JPEG would be suitable as it is smaller in size for loading on webpages. Is high quality the priority or small file size?

Question 16

File size issue

Answer 16

The file type affects the size. Some types are very efficient in the way they store data whereas others use lots of storage space. File size. At have implications for storing transmitting/ sending or displaying files and this will also affect your choice of file type