What is the difference between EMAIL and IRC?

What is the difference between EMAIL and IRC?
Electronic mailoften abbreviated as e-mail or emailis a method of exchanging digital messages, designed primarily for human use. A message at least consists of its content, an author address and one or more recipient addresses. Email systems that operate over a network-rather than being limited to a single, shared machine-are based on a store-and-forward model in which email computer server systems accept, forward, deliver or store messages on behalf of users, who only need to connect to the email infrastructure with their personal computer or other network-enabled device for the duration of message submission to, or retrieval from, their designated server. Rarely is email transmitted directly from one user's device to another's.Internet Relay Chat (IRC) is a form of real-time Internet text messaging (chat) or synchronous conferencing. It is mainly designed for group communication in discussion forums, called channels, but also allows one-to-one communication via private message, as well as chat and data transfers via Direct Client-to-Client. IRC is an open protocol that uses TCP and optionally TLS. An IRC server can connect to other IRC servers to expand the IRC network. Users access IRC networks by connecting a client to a server.