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.
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.
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.
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.
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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