ITNET LESSON 1 - PART 1.1

node (station)

network of personal computers, servers, mainframes (computers used for the extremely complex calculation/s), printers, DVD / CD-ROM racks, fax machines, disk tapes, network interfaces and other machines makes up the component of the network.

node (station)

Every one of them is a node if connected to the network directly

communications media

it provides a way to transmit a signal containing data or information from one network to another. Nodes are able to form a network through the aid of wire cables and wireless technologies. A data is then sent and received by the network nodes

wired communications media

• wired cabling

• fiber optic cables, twisted pair cables, coaxial cables

wireless communications media

infrared waves, microwaves, radio waves

essential nodes

1. Servers

2. Hosts

3. Workstations

workstation

device is considered to be a workstation if it has its own central processing unit (CPU) and an operating system that can provide support to common applications, and firm wares.

client

refers to a computer that request permission to access files from another network of computer.

host

is the computer it wants to access.

host

refers to a computer the client workstation is trying to access over a network.

Example: “peer to peer networks”

server

• acts as repository software for other workstations.

• provides multi-user access, by allowing simultaneous access of multiple networks of computers to a server.

Network Interface Card (NIC)

is a type of network board with sockets mounted inside a motherboard. The said receptacle is where the network cable will be plugged in, in order to connect the computer to a network device.

Network Interface Card (NIC)

also supports wireless network communication. It has an antenna (that is usually not visible) that detects wireless signals.

Protocols

refers to set of rules or standards one must abide. The internet has various standard procedures that it follows to ensure a smooth exchange of communication from different networks. The protocol can also be likened to one’s native language. It provides a common ground that lets different workstations to communicate.

Internet Protocol or IP

also provides unique numerical addresses to websites which serves as your pass when you need to connect with another network.

Internet Protocol or IP

is one of the universally acknowledged protocol of network technologies.