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    • Server Clustering Technologies and Concepts

      Server Clustering Technologies and Concepts

      Microsoft Cluster Service Overview A cluster is the grouping of two or multiple physical servers that are perceived to the network as one network server. The servers in the cluster, called nodes, operate together as one network server to provide redundancy and load balancing to the corporate network by resuming operations of any failed server

    • What is a Hydrophone?

      What is a Hydrophone?

      A hydrophone is a type of microphone that is specifically designed to be used under water. Hydrophones depend on piezoelectric transducers to detect sound waves and other pressure waves coming from underwater vehicles, animals, and natural structures. Hydrophones were widely used in World War I, and II to detect U-boats (German submarines) and are still

    • How to Connect Multiple Monitors to Your Laptop

      How to Connect Multiple Monitors to Your Laptop

      Many computer owners find the multiple monitor features extremely useful. The multiple monitor feature has been around for many years and is available on Macintosh computers, Linux computers and Windows Operating systems- specifically on Windows 98, ME, XP, and Vista. It is quite easy to add one or more monitor to your computer, however there

    • What is a MOSFET?

      What is a MOSFET?

      A MOSFET (Metal Oxide Semiconductor Field Effect Transistor) is a device that switches or amplifies an electronic signal. MOSFET technology has made computers much smaller and more efficient than they once were by handling large amounts of electricity in very small spaces. MOSFETs are also crucial for both digital and analog signals and are found

    • IPsec

      IPsec

      IPSec (IP Security) is a suite of protocols which was designed by Internet Engineering Task Force (IETF) to protect data by signing and encrypting data before it is transmitted over public networks. The IETF Request for Comments (RFCs) 2401-2409 defines the IPSec protocols with regard to security protocols, security associations and key management, and authentication

    • DiSEqC Switch

      DiSEqC Switch

      A DiSEqC (Digital Satellite Equipment Control) switch is a device that connects coaxial cables from a satellite receiver to coaxial cables from a satellite antenna and is responsible for transferring data and power to and from each device. DiSEqC switches are used to control a satellite dish’s direction, send power from a satellite receiver to

    • How to Send a Fax via Outlook Express

      How to Send a Fax via Outlook Express

      You can send a fax through Microsoft Outlook with a few simple, easy steps. Unfortunately, if you have Microsoft Outlook Express, you need special software to be able to send a fax. There are several software programs available online. Here are some of the top programs you can use. Mighty Fax Mighty Fax is one

    • Caller-ID

      Caller-ID

      Calling Number Delivery (CND), better known as Caller ID, is a telephone service intended for residential and small business customers. It allows the called Customer Premises Equipment (CPE) to receive a calling party's directory number and the date and time of the call during the first 4 second silent interval in the ringing cycle. Caller-ID

    • Typing Tutorials

      Typing Tutorials

      Typing is a must-have skill that we should all develop. It is an essential skill in most businesses today, especially if you are looking for a white collar job.  Whether you are a student, a casual computer user whose need to type starts and ends with keying out a few emails and chat messages, or

    • Bootable Antivirus

      Bootable Antivirus

      Bootable antivirus software refers to any type of antivirus program that can be booted from a CD, DVD, or removable hard drive and can detect viruses on a user’s computer without having to startup Windows. Bootable antivirus software can be very important when a virus takes over a computer or prevents regular antivirus software from

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