BUS 237 Lecture Notes - Lecture 6: Local Area Network, Computer Network, Mac Address

• School: Simon Fraser University
• Department: Business Administration
• Course: BUS 237
• Professor: Peter Tingling

Document Summary

Telecommunications: transfer can occur between people or machines: 2 or more people talking on a telephone or using computers to send data, 2 machines sending information. Transmission media: transfer of electronic data (also called communication. Media or communication channels or data channels: wired (guided) Twisted-pair copper (telephone or internet cable) reduce ********* Optical fiber cable (glass) most popular: wireless (unguided) Amount of electronic data that can be transferred using transmission. Measured in bits per second (kbps, mbps, gbps) Continuously varying frequency smooth but inaccurate: digital: series of bits (high voltage=1, low voltage=0) accurate and choppy, example copy: analog (photocopy of a photocopy) and digital: powerpoint. Network: collection of computers that communicate with on another over transmission lines: can be as small as 2 machines or large enough to connect machines across continents. Telecommunications is the transfer of data between at least two machines. The transfer of data occurs through one or more transmission media in a digital or.