DEFINITION ICT (information and communications technology, or technologies) ICT, or information and communications technology (or technologies), is the infrastructure and components that enable modern computing. Mary K. Pratt 26 Jul 2019 ICT, or information and communications technology (or technologies), is the infrastructure and components that enable modern computing. Although there is no single, universal definition of ICT, the term is generally accepted to mean all devices, networking components , applications and systems that combined allow people and organizations (i.e., businesses, nonprofit agencies, governments and criminal enterprises) to interact in the digital world. Components of an ICT system ICT encompasses both the internet-enabled sphere as well as the mobile one powered by wireless networks. It also includes antiquated technologies, such as landline telephones, radio and television broadcast -- all ...