Looking for a good calculator that can not only do basic arithmetic but also can do a variety of functions such as unit conversion, solving equations, scientific computations and so on? If so, take a look at the free on-line service ‘ecalc’ ( http://www.ecalc.com/). For those of you who wish to use it off-line, the service offers a desktop version of the calculator as well.
Windows Sysinternals (http://technet.microsoft. com/en-us/sysinternals/default.aspx) is a suite of tools that help us manage Windows system with ease. The tool pack contains useful utilities such as Autoruns (for obtaining/managing the list of programs loaded when the Windows starts) and Process-monitor. Anyone can download and use these programs for free (http://live.sysinternals.com/). However, if you are troubleshooting an unknown machine and averse to install the tools, the sysinternals live service helps you run them directly from Windows explorer.
For this, enter ‘\\live.sysinternals.com’ into Windows explorer’s input box and press the Enter key. Now, you will find a set of folders (like Tools) that contain the various sysinternal tools listed on the Explorer window. To run a tool, access the appropriate folder and click on the tool’s icon.
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