Saturday, 1 January 2011

Block 3 Part 1 section 1 Activities

My answers for two of the activities in Block 3 Part 1 (section 1)...

Activity 1:


Figure 2 – representation of a portable DVD player

Some functions performed by the DVD player for each category:

Receives from user
Receives commands to play, rewind, fast forward, etc. from user via buttons or remote control.
Sends to user
Sends audio and video signals to user via LCD screen and speakers.
Manipulates
Manipulates encoded binary data into video signals recognised by the LCD screen.
Stores/Retrieves
Stores user settings such as audio volume, screen brightness, last position reached when playing a DVD.
Retrieves data stored on DVD discs.

Activity 3:

ICT systems in the context of entertainment – availability in time and space:
System
Availability in time
Availability in space
Radio and TV broadcasting
Only at time of broadcast
Any place within range of broadcasting antennae
Film (cinema)
Only at time of showing
Only at a cinema showing the film
Video / DVD
Any time once the video / DVD is physically available
Any place with access to a video / DVD player
The internet
Any time
Any place with access

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