Information and Communications Technology – or technologies (ICT) is an umbrella term that includes all technologies for the manipulation and communication of information. The term is sometimes used in preference to Information Technology (IT), particularly in two communities: education and government. In the common usage it is often assumed that ICT is synonymous with IT; ICT in fact encompasses any medium to record information (magnetic disk/tape, optical disks (CD/DVD), flash memory etc. and arguably also paper records); technology for broadcasting information – radio, television; and technology for communicating through voice and sound or images – microphone, camera, loudspeaker, telephone to cellular phones. It includes the wide variety of computing hardware (PCs, servers, mainframes, networked storage), the rapidly developing personal hardware market comprising mobile phones, personal devices, MP3 players, and much more; the full gamut of application software from the smallest home-developed spreadsheet to the largest enterprise packages and online software services; and the hardware and software needed to operate networks for transmission of information, again ranging from a home network to the largest global private networks operated by major commercial enterprises and, of course, the Internet. Thus, “ICT” makes more explicit that technologies such as broadcasting and wireless mobile telecommunications are included.

So you can see that there’s a bit of a generation thing going on here. Anything to do with mainframes, data processing and even “computer science” was covered by IT whereas the “C” in ICT was added in order to emphasise the networking and broadcast aspects of the technology.