What is a Network? A network refers to two or more connected computers that can share resources such as data, a printer, an Internet connection, applications, or a combination of these resources.

Layering In An Internet Our layering diagrams only show two computers connected to a network The Internet contains multiple networks interconnected by routers Routers only need layer 2 and layer 3 …

From a performance standpoint, we study the causes of packet delay and loss in computer network. We identify key architectural principles in networking, including layering and service models. We provide …

Internal nodes of the network called routers or switches will then try to ensure that the packet is delivered to the requested destination. The concept of packets and packet switching was first …

Networks What is a network? A system of lines/channels that interconnect E.g., railroad, highway, plumbing, communication, telephone, computer What is a computer network? A form of …

WHAT IS A NETWORK? A concrete (measurable – more on this later) pattern of relationships among entities in a social space Examples: Social networks among individuals: friendship, advice-seeking, …

A network is a group of two of more computer systems sharing services and interacting in some manner. This interaction is, accomplished through a shared communication link, with the shared components …