Software for “Micro Live - Series 1, Episode 5”
This is the BBC Micro software used in the programme. The programs can be run in your browser. Select one and then follow the on-screen instructions.
Return to Micro Live - Series 1, Episode 5 .
Runs an animated graphic that shows the frequencies used for speech, a telephone call, Radio and Television. Many telephone calls can be contained in the bandwidth needed for a single anaolog 625 line TV signal
This program loads to a blank blue screen but it can be progressed by pressing <Space> for each step in its sequence. Once the demonstration has run it can be then re-run by further presses of <Space>
Runs an animated graphic that shows how an analog signal can be affected by noise, particularly when the signal reduces in level on a long transmission. The analog signal can be converted into a digital one, and then the effect of noise can be far less until the 'cliff effect'
This program can be progressed from the first analog waveform displayed by pressing <Space>. Once you have progressed on to the graphic showing the sampled analog signal, the graphic can then be progressed further by pressing <escape> , followed by <Space> presses to see how the effect of noise can (up to a point) be far less destructive on a DIGITAL signal