ICT means, Information and Communication Technologies
ICT is a borders term for information technology which refers to all communication technologies including the Internet wireless networks, cell phones, computers, software, middleware, video-conferencing, social networking and other media applications and services
Answer:
A waveform that switches representing the two states of a Boolean value (0 and 1, or low and high, or false and true) is referred to as a digital signal or logic signal or binary signal when it is interpreted in terms of only two possible digits.