1. Bandwidth
Unit 210 – Lesson 3

2. Lesson Goals
 Understand the meaning of bandwidth
 Know the effect bandwidth can have on interactive multimedia products
 Be able to describe limitations caused by bandwidth
#bandwidth #limit
#multimedia

3. What is Bandwidth?
Think of where you have heard of it before…

4. Understand meaning of bandwidth
Bandwidth Be able to describe limitations
 This is a measure of how much data can be used
within a second e.g. Kilobytes per second or
Megabytes per second.
 Sometimes people want to look at lots of data at
once, especially with interactive multimedia
products. This might include
text, videos, images, animation and sound.
 Bandwidth is often restricted to only allow so much
data to filter though at a time and this is when you
might find that some products run slowly.
#bandwidth #limit
#multimedia

5. Understand meaning of bandwidth
Bandwidth Be able to describe limitations
#bandwidth #limit
#multimedia

6. Understand meaning of bandwidth
Bandwidth Be able to describe limitations
 Download times for Virgin Media:
30mb 60mb 100mb
Album 18 sec 9 sec 6 sec
TV Show 102 sec 54 sec 30 sec
Movie 5 mins 2.5 mins 1.5 mins
HD Movie 20 mins 10 mins 6 mins
 The larger the connection size the faster the
download will occur.
 Bandwidth can be throttled to prevent further #bandwidth #limit
downloads from taking place.
#multimedia

7. Understand meaning of bandwidth
Your Task Be able to describe limitations
 Research and explain the following:
 What does bandwidth mean?
 What are the limitations of small bandwidth?
#bandwidth #limit
#multimedia

8. Key Words
 Bandwidth  The measure of how much data is allowed
along a connection every second
 Limit  The point beyond which something may not go
any further
 Multimedia  A product that combines various types of
media such as images, audio, video etc.