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.
TCP/IP Core Protocols. The TCP/IP protocol component that is installed in your network operating system is a series of interconnected protocols called the TCP/IP core protocols. All other applications and other protocols in the TCP/IP protocol suite rely on the basic services provided by the following protocols: IP, ARP, ICMP, IGMP, TCP, and UDP.