Introduction to Information Technology WEEK 9
Summary of Week 9
LECTURE 17
In the 1st lecture of this week we will continue working with Fireworks and explore some more features.
LECTURE 18
A computer network is a group of interconnected computers. A computer network allows computers to communicate with many other and to share resources and information. Computer networks can also be classified according to the hardware and software technology that is used to interconnect the individual devices in the network, such as Optical fiber, Ethernet, Wireless LAN, HomePNA, Power line communication or G.hn. Ethernet uses physical wiring to connect devices. Frequently deployed devices include hubs, switches, bridges and/or routers. Wireless LAN technology is designed to connect devices without wiring. These devices use radio waves or infrared signals as a transmission medium.
Data Communications concerns the transmission of digital messages to devices external to the message source. "External" devices are generally thought of as being independently powered circuitry that exists beyond the chassis of a computer or other digital message source. As a rule, the maximum permissible transmission rate of a message is directly proportional to signal power, and inversely proportional to channel noise. It is the aim of any communications system to provide the highest possible transmission rate at the lowest possible power and with the least possible noise.
In this lecture 1 of this week we will be discussing various aspects of communication and computer networks. Following topics will be covered in this lecture:
Discuss the components required for successful communications
Identify various sending and receiving devices
Describe uses of computer communications
List advantages of using a network
Differentiate among client/server,peer-to-peer, and P2P networks
Describe the various network communications standards
Lecture Slides: Communication & Networks
The next lectures will be uploaded soon thanks for reading.....
LECTURE 17
In the 1st lecture of this week we will continue working with Fireworks and explore some more features.
LECTURE 18
A computer network is a group of interconnected computers. A computer network allows computers to communicate with many other and to share resources and information. Computer networks can also be classified according to the hardware and software technology that is used to interconnect the individual devices in the network, such as Optical fiber, Ethernet, Wireless LAN, HomePNA, Power line communication or G.hn. Ethernet uses physical wiring to connect devices. Frequently deployed devices include hubs, switches, bridges and/or routers. Wireless LAN technology is designed to connect devices without wiring. These devices use radio waves or infrared signals as a transmission medium.
Data Communications concerns the transmission of digital messages to devices external to the message source. "External" devices are generally thought of as being independently powered circuitry that exists beyond the chassis of a computer or other digital message source. As a rule, the maximum permissible transmission rate of a message is directly proportional to signal power, and inversely proportional to channel noise. It is the aim of any communications system to provide the highest possible transmission rate at the lowest possible power and with the least possible noise.
In this lecture 1 of this week we will be discussing various aspects of communication and computer networks. Following topics will be covered in this lecture:
Discuss the components required for successful communications
Identify various sending and receiving devices
Describe uses of computer communications
List advantages of using a network
Differentiate among client/server,peer-to-peer, and P2P networks
Describe the various network communications standards
Lecture Slides: Communication & Networks
The next lectures will be uploaded soon thanks for reading.....
No comments:
Post a Comment