Summary Computer networks grade 10

, COMPUTER NETWORKS



WHAT IS A NETWORK
·
two or more devices connected by a communications channel



nodes connected
any device to the network
-




server -
a computer designed to act as a central network that provides various resources and
manages
and
logins user access




LAN- exists in
a network that a
geographical area




cloud of software , database ect
computing
-


making use
computing services like
storage , over the internet




NODES
·
devices users use

·
device to connect nodes to eachother

·
device to connect to the internet

device to
provide service
·
a




switch-connects nodes in a network using communication media



COMMUNICATION MEDIA
·

hardware acts as a source or sender

hardware that acts as the destination or receiver

connection between source and destination


communication channel-connection between source and destination


bandwidth-maximum amount of data that can transfer per unit



transmition rate-rate at which data is transferred over a communication channel measured in Kbps , Mbps or Gbps