What are the definitions for Information and Communication Technology with a contemporary references ?

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Lassaad Hedhili

United Nations Educational, Scientific and Cultural Organization (UNESCO):

"Information and Communication Technology (ICT) refers to the diverse set of technological tools and resources used to communicate, create, disseminate, store, and manage information."

Michael Shifrin

Lassaad Hedhili has sent a maximally general, ultimate definition, which may be applied in any domain. But if you want to be specific, you need to state the purpose of your question. The definition can be transformed depending on the purpose: ICT in education, medicine, technology, etc.