Computer systems have been the core of information technology to provide signal processing and storage capabilities and form the basis for the Internet connectivity. Computer systems act as the fundamental core hardware for implementation of the physical layer of today's worldwide information super highways. Networking technologies provide end-users with the facilities for network connection, data access, and communications through wired and wireless IP-based networks. On the other hand, communication technologies provide means for signal transmission and reception via efficient multiple access capability through various media, including copper wires, optical fibers, radio frequency (RF) and other approaches (such as infrared, laser, etc.). Integration of computer systems, networks, and communications is an important trend for future information technologies (ITs).  

Cite: Himanshu Aggarwal and Vishal Goyal, "Guest Editorial—Special Issue on Emerging Technologies in Internet Security and Networks," Journal of Emerging Technologies in Web Intelligence, Vol. 2, No. 2, pp. 79, May 2010. doi:10.4304/jetwi.2.2.79