The following are the major differences between product cost and period cost: 1  Product Cost is the cost which can be directly assigned to the product. 2  Product Cost is based on volume because they remain same in the unit price, but differ in the total value.
Communication protocol. In computing, a protocol or communication protocol is a set of rules in which computers communicate with each other. The protocol says what part of the conversation comes at which time. It also says how to end the communication.
Generally speaking, a protocol is a method of controlling the discourse between two or more parties, unless when speaking about a medical protocol. Then, it is the process, governed by rules, by which medical care is administered. Computer network protocols come in a wide variety. One of the best known network protocols is TCP/IP, which stands for Transmission Control Protocol / Internet Protocol. These protocols regulate how data is packaged to send from one computer to another, and forms the backbone of the contemporary Internet. Learn more about Internet & Networking