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#Free network topology mapper for workgroups series#

HAN uses wired, cable, or wireless connections to link a household’s digital devices. A network contained within a user’s home that connects a person’s digital devices.The computers are geographically close together (that is, in the same building). LAN or local net, connects computers and devices in a limited geographic area, such as one office, one building, or a group of buildings close together.A data network designed for a town or city. MAN is a communications network covering a city or a suburb.WAN is a communications network that covers a wide geographic area, such as a country or the world. The computers are farther apart and are connected by telephone lines or radio waves.Types of Networks: WANs, MANs, LANs, HANs, PANs, & others How do the sizes of networks differ? The Benefits of Networks What are five ways I might benefit from networks?

#Free network topology mapper for workgroups series#

A network is a series of points or nodes interconnected by communication paths.

Network or communications network, is a system of interconnected computers, telephones, or other communications devices that can communicate with one another and share applications and data.

Network What are the benefit of networks, and what are their types, components, and variations?

The most important is that all kinds of multimedia can now be changed into digital form and transmitted as data to all kinds of devices.

The digital uses a device (called an analog-to-digital converter) to record representatives selections, or samples, of the sounds and convert the analog waves into a stream of numbers that the computer then uses to express the sounds.

Ĭonverting Reality to Digital Form How is sampling used to express analog reality in digital form? A modem converts between these two forms. Computer information is stored digitally, whereas information transmitted over telephone lines is transmitted in the form of analog waves. A modem is a device or program that enables a computer to transmit data over, for example, telephone or cable lines. A receiving modem demodulates the analog signals back into digital signals.

Modem is short for “modulate/demodulate” a sending modem modulates digital signals for transmission over phone lines.

Purpose of the Dial-Up Modem: Converting Digital Signals to Analog Signals & Back How does a telephone modem change analog to digital signals and the reverse?

A typical analog device is a clock in which the hands move continuously around the face. Describes a device or system that represents changing values as continuously variable physical quantities. Analog continuously varying in strength and/or quality–fluctuating, evolving, or continually changing.The Analog Basis of Life: Electrical Signals as Continuous Waves What does “analog” means? All data that a computer processes must be encoded digitally, as a series of zeroes and ones. There is no simple way to represent all the values in between, such as 0.25.

Computers are digital machines because at their most basic level they can distinguish between just two values, 0 and 1, or off and on. Each 0 and 1 signal represents a bit. Describes any system based on discontinuous data or events.

Digital describes any system based on discontinuous data or events in the case of computers, it refers to communications signals or information represented in a two-state (binary) way using electronic or electromagnetic signals.

From the Analog to the Digital Age The Digital Basis of Computers: Electrical Signals as Discontinuous Bursts What does “digital” means?