Web Design Devlopement Flashcards
What does gif stand for
Graphics interchange format
What are the main features of a GIF file
Uses lossless compression, supports 8-bit color (256 colors), allows transparency, can be animated.
What does JPEG stand for?
Joint Photographic Expert Group
What type of compression does JPEG use?
Lossy compression, which may reduce image quality
How many colors does JPEG support?
24-bit depth, over 16 million colours
What does PNG stand for?
Portable Network Graphic
What are the key features of PNG
Supports lossless compression, transparency, and 24-bit color depth (over 16 million colors)
Name all the types of testing
Design,link,media
Describe what DIV ID DOES
It is normally used when a single item needs to be styled individually
What does DIV CLASS DO
It is usually needed for when multiple items need to be styled the same way
What are the 4 main points in the design and patents act
• patents (how something works)
• designs (what it looks like)
• trademarks (what you call it)
• copyright (artistic or literary expression/intellectual property)
What is an absolute address
An absolute address always uses a full webpage address i.e. http://www.etc (external)
What is a relative address
A relative address uses a path name to link to a file in the same site i.e. /home.html or /main/info.html (internal)
What is a WAV file
Uncompressed
High quality sound
Standard for audio CDs
Large file sizes make WAV less suitable for streaming, and requires more storage space
Sample rate of 44.1KHz
What is an mp3 file
Lossy compression
Removes high and low frequencies generally not heard by human ear
Compression results in file size around one tenth of original
Small file sizes make MP3 more suitable for streaming, and requires less storage space
Sample rate of 44.1KHz
What has a bigger file size png or gif
PNG
State two reasons why Jpg files are often used as the standard file format on web pages
-higher colour depth
-smaller file size
-popular format understood by browsers
-downloads quicker
symbol is used for class selector
Dot
What symbol is used for class
Dot
What symbol is used for id
#
How do you input an audio file
< audio controls src=“sound.mp3”></audio>
How do you input a video
<video controls src=“video.mp4”></video>
