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The Internet (or internet) [a] is the global system of interconnected computer networks that uses the Internet protocol suite (TCP/IP) [b] to communicate between networks and devices.
The African helmeted turtle (Pelomedusa subrufa) is a species of side-necked terrapin in the family Pelomedusidae.The species naturally occurs in fresh and stagnant water bodies throughout much of sub-Saharan Africa, and in southern Yemen. It is omnivorous, with its diet consisting mainly of aquatic invertebrates, small fish, and vegetation.
其他人也問了
What does Internet stand for?
What is the difference between the World Wide Web & https?
What is a network?
What are Internet standards?
What is the communication infrastructure of the Internet?
What are the different types of Internet access?
The World Wide Web (WWW or simply the Web) is an information system that enables content sharing over the Internet through user-friendly ways meant to appeal to users beyond IT specialists and hobbyists. [1] .
- History
- Use
- Network Packet
- Network Topology
- Network Links
- Network Nodes
- Communication Protocols
- Geographic Scale
- Organizational Scope
- Network Service
Computer networking may be considered a branch of computer science, computer engineering, and telecommunications, since it relies on the theoretical and practical application of the related disciplines. Computer networking was influenced by a wide array of technology developments and historical milestones. 1. In the late 1950s, a network of compute...
A computer network extends interpersonal communications by electronic means with various technologies, such as email, instant messaging, online chat, voice and video telephone calls, and video conferencing. A network allows sharing of network and computing resources. Users may access and use resources provided by devices on the network, such as pri...
Most modern computer networks use protocols based on packet-mode transmission. A network packet is a formatted unit of data carried by a packet-switched network. Packets consist of two types of data: control information and user data (payload). The control information provides data the network needs to deliver the user data, for example, source and...
Network topology is the layout, pattern, or organizational hierarchy of the interconnection of network hosts, in contrast to their physical or geographic location. Typically, most diagrams describing networks are arranged by their topology. The network topology can affect throughput, but reliability is often more critical.[citation needed]With many...
The transmission media (often referred to in the literature as the physical medium) used to link devices to form a computer network include electrical cable, optical fiber, and free space. In the OSI model, the software to handle the media is defined at layers 1 and 2 — the physical layer and the data link layer. A widely adopted family that uses c...
Apart from any physical transmission media, networks are built from additional basic system building blocks, such as network interface controllers (NICs), repeaters, hubs, bridges, switches, routers, modems, and firewalls. Any particular piece of equipment will frequently contain multiple building blocks and so may perform multiple functions.
A communication protocol is a set of rules for exchanging information over a network. Communication protocols have various characteristics. They may be connection-oriented or connectionless, they may use circuit mode or packet switching, and they may use hierarchical addressing or flat addressing. In a protocol stack, often constructed per the OSI ...
Networks may be characterized by many properties or features, such as physical capacity, organizational purpose, user authorization, access rights, and others. Another distinct classification method is that of the physical extent or geographic scale. Nanoscale network A nanoscale communicationnetwork has key components implemented at the nanoscale ...
Networks are typically managed by the organizations that own them. Private enterprise networks may use a combination of intranets and extranets. They may also provide network access to the Internet, which has no single owner and permits virtually unlimited global connectivity.
Network services are applications hosted by servers on a computer network, to provide some functionalityfor members or users of the network, or to help the network itself to operate. The World Wide Web, E-mail, printing and network file sharing are examples of well-known network services. Network services such as DNS (Domain Name System) give names...
A wekeep (/ ˈwɪki / ⓘ WI-kee) is a form of hypertext publication on the internet which is collaboratively edited and managed by its audience directly through a web browser. A typical wiki contains multiple pages that can either be edited by the public or limited to use within an organization for maintaining its internal knowledge base.
A URL is a specific type of Uniform Resource Identifier (URI), [2][3] although many people use the two terms interchangeably. [4][a] URLs occur most commonly to reference web pages (HTTP / HTTPS) but are also used for file transfer (FTP), email (mailto), database access (JDBC), and many other applications.
In Internet culture, brain rot (or brainrot) refers to any Internet content deemed to be of low quality or value, or the supposed negative psychological and cognitive effects caused by it. [1] . The term also refers to excessive use of digital media, especially short-form entertainment, [2] which may affect cognitive health.
