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  • Driverless Car
    A driverless car (also autonomous/autopilot/auto-drive car) refers to a car that does not need human intervention to function. The first driverless car achieve...
  • What is a Balun?
    A balun is an electrical transformer that is used to convert electrical signals to and from balanced and unbalanced signals. They are normally used to connect l...
  • No Audio Device
    The no audio device error is commonly encountered on the Windows operating system. The error is normally thrown when the end user upgrades a computing device to...
  • What Port Number is XXX on?
    The way that most services work under TCP/IP is that the server is configured to use a well known port number and the client connects from a random high port. ...
  • WiFi Signal Strength Meter
    Windows and other operating systems have a WiFi signal strength meter, but this is usually basic software and does not really tell the user much about the wirel...
  • Auditing Security Events
    An Overview of Auditing Auditing enables you to determine which activities are occurring on your system. Through auditing, you can track access to objects, fil...
  • How to Defeat Caller-ID Blocking
    One trick to defeat Caller-ID blocking is to forward your phone line to a friend who lives in another LATA. When your friend receives the anonymous phone call, ...
  • Race Condition
    A race condition occurs when multiple processes access and manipulate the same data concurrently, and the outcome of the execution depends on the particular ord...
  • What is Twitter and How Does It Work?
    Twitter is a social networking site that relies on micro-blogging for communication. By typing short, 140 character messages users can communicate with their fo...
  • How to Block Incoming Calls
    Blocking incoming calls can sometimes be quite important for many reasons. Someone may be troubling you over the phone, harassing you, giving blank calls and yo...