CHAPTER 2: Internet Technology Flashcards
WHAT IS HUMAN NETWORKING
-a helpful system of sharing information and services among individuals and groups having common interest
WHAT IS COMPUTER NETWORKING
Collection of computers and devices connected together via communication device and transmission media
What is digital communication?
Process in which two or more computers or devices transfer data, instructions, and information is known as digital communication
For successful communication…yoh need…
A SENDING DEVICES(that initiates an instruction to transmit data instructions or information)
A COMMUNICATION DEVICE (that connects the sending device to transmission media/connects transmission media to a receiving device
A TRANSMISSION MEDIA(on which data, instructions or info travel
A RECEIVING DEVICE that accepts de transmission media of data instructions or information
WHAT IS NETWORK?
A network is a collection of computers and devices connected together via communications devices and transmission media to share resources, such as hardware, software, data and information.
What is a communication device?
Is any type of hardware capable of transmitting data, instructions and information between a sending device and a receiving device.
- at the sending end, a communication device sends the data, instructions, or information from the sending device to transmission media.
- at the receiving end, a communication device receives the signals from the transmission media.
EXAMPLES OF COMMUNICATION DEVICES
1.Modem
2.Wireless Access Point (WAP)
3.Router
4.Network interface card (NIC)
5.Hub/switch
Dial up modem?
A communication device
that converts digital
signals to analog signals
and analog signals to
digital signals, so that
data can travel along an
analog phone line.
Cable modem.?
Is a broadband modem that
sends and receives digital
data over the CATV network
Dsl modem?
Is a broadband modem that
sends and receives digital
data over the computer to
DSL line.
Wireless/USB modem?
A communication device that
uses the mobile service
provider’s network to
connect to the Internet
wirelessly from a computer
or other mobile device
Wireless access point?(WAP)
A central communications
device that allows computers
and devices to transfer data
wirelessly among themselves
or to a wired network using
wireless technologies
Router?
A communication device that connects multiple computers
or other routers together on
a network
NETWORK INTERFACE CARD
A communication device
that enables a computer or
device that does not have
built in networking
capability to access a
network.
HUB/switch
A communication device
that provides a central
point for cables in a
network
WHAT IS TRANSMISSION MEDIA?
▪Materials or substances capable of carrying one or more signals
Two types of transmission media
1.Wired transmission media
2.Wireless transmission media
