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WorksheetsDATA AND DIGITAL COMMUNICATION MODULE 1
Total questions: 15
Worksheet time: 3mins
This is one of the oldest forms of long-distance communication for transmitting information. they were used first used in 200 BC to send messages along the Great Wall of China
Semaphore Flag
Smoke SIgnal
Carrier Pigeon
Pony Express
It revolutionized long-distance communication by sending electric signals (Morse code) in between two (2) stations
Telegraph
Telephone
Radio
Semaphore Flag
This generation uses analog wireless technology in communications, developed in 1980
4G
5G
2G
1G
The key technologies that have made in this generation are Multiple Input Multiple Output (MIMO) and Orthogonal Frequency Division Multiplexing (OFDM).
4G
5G
3G
2G
It is a piece of information that can be analog or digital. It can be in the form of a number, character, text, audio, or video. It can be created, deleted, stored, or transferred.
Signal
Data
Message
Information
Type of data which refers to continuous information
Digital Data
Analog Data
Multiple Data
Unli Data
It is a collection of data treated as a unit by a computer.
Signal
Data
File
Character
It is a mathematical representation of the conditions and parameters affecting the transmission and processing of information.
Data Communication
Analog Communication
Digital Communication
Information Theory
It refers to the exchange of data between a source and a receiver in a network. It enables the movement of electronic or digital data between two (2) or more nodes, regardless of geographical location, technological medium, or data contents.
Analog Communication
Data Communication
Information Theory
Digital Communication
It is the user of the information generated by the source
Sink
Transmitter
Source Encoder
Data Encoder
It converts the information into an electrical form called message signal
Transmitter
Sink
Source encoder
Receiver
These are the physical or logical layouts of devices that belong in a network.
Network Typology
Network Topology
Network communication
Network devices
It is formed by connecting multiple buses to form a system of branching links with no closed loop.
Star Topology
Tree topology
Bus topology
Ring topology
These are networks that interconnect devices within the reach of an individual, usually within a range of 10 meters.
Metropolitan Area Network
Wide Area Network
Personal Area Network
Local Area Network
It is a telecommunications network that extends over a large geographic area for the primary purpose of computer networking. computer communications network that spans cities, countries, and the globe
Wide Area Network
Personal Area Network
Local Area Network
Metropolitan Area Network
