Zusammenfassung der Ressource
Computer Networks
- Server/Client
- Server
- Client
- Types of
Networks and
Coverage
- LAN
- Local area networks cover a small physical area.
- WLAN
- Wireless local area networks enable users to move
around within a larger coverage area, but still be
wirelessly connected to a network.
- WAN
- Wide area networks cover a broad area.
- MAN
- Metropolitan area networks are very large networks that cover an entire city
- PAN
- Personal area networks are used for communication
among various devices such as telephones.
- DNS
- The domain name system is a hierarchical
decentralized naming system for computers,
services, or any resource connected to the
internet or a private network.
- History
- Tim Berners-Lee
- Inventor of world
wide web.
- www
- it is an information
space where documents
and other web resources
are identified by
uniform resource
locators (URLs), linked
by an hypertext links,
and can be accessed via
internet.
- ARPANET
- The advanced research projects
agency network was an early
packet switching network and
the first network to implement
the protocol suite.
- Protocols
- IP
- Internet Protocol
- NCP
- Network Control Program
- TCP
- Transmission control protocol
- FTP
- File transfer program
- Security
- Firewall
- Controls incoming and outcomig network
- Performance
- Well of performance
- Security
- Policies and practices
- HTTP
- Hypertext transfer protocol
- Reliability
- If it works as expected.
- Types of computers
- Micro computer
- Mini Computer
- MAcro Computer
- Super Computer
- Topology
- BUS
- Nodes directly connected
to a common linear
half-duplex link.
- RING
- Each node connects to exactly
two other nodes, forming a
single pathway for signals
through each node.
- STAR
- A central device
which is used to
connect multiple PCs
in a local area
network.
- MESH
- Each node relays data for
the network.
- Transmission Media
- Radio
- Coaxial Cable
- Microwave
- Twisted cable
- Satelite
- Optical Fiber