Module 6 Flashcards
It is a series of interconnected computers/devices where the interconnection is formed to share resources, data and applications in order to communicate between the computers/devices.
Computer Networks
What are the five basic components of a computer network?
- Message
- Sender
- Receiver
- Transmission media
- Protocol
is data or information that needs to be transmitted over a computer network from one device to another device.
Message
is the computer that has the data and need to transfer the data to another network-connected system.
Sender
the computer that awaits data from other devices on the network is a _____?
Receiver
we need a communication medium such as wires, cables, radio waves etc. to transfer data from one device to another device
Transmission Media
it is a set of rules agreed by both the sender and the receiver, two devices can be connected to each other without a protocol but cannot communicate.
Protocol
7 Features of a Computer Network.
- performance
- data sharing
- backup
- software and hardware compatibility
- reliability
- security
- scalability
it explains how to link computers to obtain the full benefits of a computer network, such as better response time, safety, scalability, etc.
Computer Network Architecture
all computers in a computer network are linked to another computer in the network in a peer to peer architecture. every machine on the network uses the same resources as other machines. no central computer act as a server, but all computers act as a server for the data stored in them.
Peer to Peer Architecture
a central computer functions as a hub in the client server architecture and serves all client computer requests. all shared data is stored on the server machine, which is shared with the client machine when the client machine makes a request.
Client Server Architecture
3 types of network topologies
- the star network
- the ring network
- the bus network
is powered by one central computer that communicates with and via all other computers.
The star network
it consists of a continuous loop with all computers attached. in a given direction, signals move and all computers have equal access to the data.
The ring network
it is the most common configuration currently. a central data cable is used, to which it is possible to connect each computer(and other devices such as printers and routers).
the bus network
