While the number of penicillin-resistant bacteria is increasing, penicillin can still be used to treat a wide range of infections caused by certain susceptible bacteria, including Streptococci, Staphylococci, Clostridium, and Listeria genera.
The Internet is the largest computer network. It is composed of thousands of smaller networks and connects billions of devices worldwide, handling the majority of data communication that occurs on a daily basis. The largest private network is the NIPRNet, owned by the U.S. Department of Defense for distribution of communications. It has data services that allow customers access to a large, centralized, protected network, mainly used by military support roles.
A wide area network (WAN) is a telecommunications network or computer network that extends over a large geographical distance. Wide area networks often are established with leased telecommunication circuits.elated terms for other types of networks are personal area networks (PANs), local area networks (LANs), campus area networks (CANs), or metropolitan area networks (MANs) which are usually limited to a room, building, campus or specific metropolitan area respectively.