Definition: Cloud Computing
We keep hearing the term Cloud Computing, but what is it? Cloud Computing is a network of shared resources anywhere in the World that can be quickly provisioned in response to customer demand. More ...
NRZ, NRZI, Manchester Encoding, What Does it Mean?
NRZ (Non-Return-to-Zero), NRZI (Non-Return-to-Zero Inverted), and Manchester Encoding are terms for the shapes and voltage levels of digital electronic signals. This article also explains Manchester decoding. More ...
Virtualization For Dummies Cheat Sheet
Virtualization is the process of using a program to abstract a computer's resources in order to create multiple isolated virtual servers, each virtual server which can run its own operating systems independently. Virtualization saves money, energy, and space. Get to know some important terms about virtualization, types of virtualization, and leading companies and products in virtualization. More ...
Overview of Cloud Computing
Cloud Computing is a way accessing and storing data over the Internet instead of on a computer hard drive. It is also provides dynamically scalable infrastructure for data, file storage and applications. More ...
Network+ Certification Exam Tutorial - How And When To Use Virtual LANs (VLANs)
From your Network+ exam studies, you know that switches forward broadcasts, and that sounds great, but that's not always a good thing. A switch can have anywhere from 12 ports to 80 or more, and by default all hosts connected to that switch are going to be in the same broadcast domain. More ...
What is DSL and how can it benefit my home or small business?
DSL or xDSL is a group of technologies that provide digital data transfer over the telephone network. DSL technology was originally begun as a part of the Integrated Services Digital Network (ISDN). The typical transfer speeds of DSL services range from 128 kilobits per second to 24,000 kbit/s. More ...
Synchronous, Asynchronous, Isochronous. What Does it Mean?
Synchronous, Asynchronous and Isochronous are all methods used to transfer streams of data. This article uses waveform diagrams to explain the difference. More ...
Network+ Certification Exam Tutorial - DHCP And RARP
Part of passing the Network+ exam is mastering the many different protocols and services you're introduced to in your studies, and that's especially hard when two protocols do much the same thing! That's the case with RARP and DHCP, so let's take a close look at these two protocols and why we use them in the first place. More ...
What Routers Do
A router is a networking device that connects different networks. Routers direct the traffic on the Internet. Without routing every network space is isolated. More ...
Basics of Bluetooth Technology
Bluetooth is a wireless technology for short range communication. Bluetooth provides functionality to detect nearby Bluetooth devices, and in order to mitigate interference, implements frequency hopping. More ...
Network Classifications: LAN, WAN, WLAN, SAN, MAN, and PAN
Computer networks can be classified by how geographically dispersed the network's components are. Knowing the different network types and characteristics is a key topic for Comptia network certification. More ...
Network Patch Panel Basics
Patch panels are used to organize the network cables. Each socket on the front of the patch panel is usually labeled with the identity of the device connected on its punch down connector on the back of the panel. More ...
What is the Internet of Things?
The Internet of Things (IoT) refers to the world of interconnected devices which provide data, and are being controlled across the Internet. Examples include many home automation devices, like smart thermostats and remotely controllable lighting fixtures, and countless others. More ...
