BDC4e Chapter 2 - Chapter 2 : Business Information Business...

Info iconThis preview shows pages 1–7. Sign up to view the full content.

View Full Document Right Arrow Icon
Chapter 2 : Business Information Business Data Communications, 4e
Background image of page 1

Info iconThis preview has intentionally blurred sections. Sign up to view the full version.

View Full DocumentRight Arrow Icon
Analog Data Continuous signal Expressed as an oscillation (sine wave format) of frequency Example: Analog electrical signal generated by a microphone in response to continuous changes in air pressure that make up sounds
Background image of page 2
Basic Analog Terms Wave frequency: Number of times a cycle occurs in given time period Wave amplitude: Height of a wave cycle Hertz (Hz): The number of times a wave cycle occurs in one second (commonly used measure of frequency)
Background image of page 3

Info iconThis preview has intentionally blurred sections. Sign up to view the full version.

View Full DocumentRight Arrow Icon
Analog Signaling time (sec) amplitude (volts) 1 cycle frequency (hertz) = cycles per second phase difference
Background image of page 4
Digital Data Represented as a sequence of discrete symbols from a finite “alphabet” of text and/or digits Rate and capacity of a digital channel measured in bits per second (bps) Digital data is binary: uses 1s and 0s to represent everything Binary digits can be represented as voltage
Background image of page 5

Info iconThis preview has intentionally blurred sections. Sign up to view the full version.

View Full DocumentRight Arrow Icon
Basic Digital Terms Bit: digit in a binary number
Background image of page 6
Image of page 7
This is the end of the preview. Sign up to access the rest of the document.

This note was uploaded on 04/27/2010 for the course BAMU BSC taught by Professor Kmm during the Spring '10 term at University of New York in Prague.

Page1 / 15

BDC4e Chapter 2 - Chapter 2 : Business Information Business...

This preview shows document pages 1 - 7. Sign up to view the full document.

View Full Document Right Arrow Icon
Ask a homework question - tutors are online