The Master of Network Computing aims to provide students with a first degree in a related discipline with the necessary knowledge, understanding and skills to develop a thorough understanding of current and developing technologies within the field of network computing, and to be able to apply this understanding to the analysis and development of distributed systems. Internet technology continues to advance, with increasing uses in novel areas. Manual processes are giving way to internet-based processes, involving hardware and software services. Vendors and researchers are connecting more and more home, office and factory devices into the network, such as fridges, automobiles and vending machines. These devices have their own protocols and techniques for communicating on the internet. Above the hardware level, all network devices can be viewed as special cases of network services. General internet services such as Web services are programmable services that can be accessed by clients to build dynamic internet applications. Internet devices and services are expected to play a significant financial and intellectual role in future developments of the internet. This unit covers network services in general, with emphasis on internet devices.