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Windows Vista Interview Questions !

>What is SMPS ?
Switch Mode Power Supplies are the current state of the art in high efficiency power supplies. Conventional series-regulated linear power supplies maintain a constant voltage by varying their resistance to cope with input voltage changes or load current demand changes. The linear regulator can, therefore, tend to be very inefficient. The switch mode power supply, however, uses a high frequency switch (in practice a transistor) with varying duty cycle to maintain the output voltage. The output voltage variations caused by the switching are filtered out by an LC filter.

>What is SDRAM ?
Short for Synchronous DRAM, a type of DRAM that can run at much higher clock speeds than conventional memory. SDRAM actually synchronizes itself with the CPU's bus and is capable of running at 133 MHz, about three times faster than conventional FPM RAM, and about twice as fast EDO DRAM and BEDO DRAM. SDRAM is replacing EDO DRAM in many newer computers.

>What is an Operating System?
An operating system is a program that controls the normal functions of your computer. There are two mainstream operating systems today - Windows and MacOS.

There are different versions of both operating systems, and it is important to determine which one you have before we can assist you.

If you have a Macintosh, go to the Finder (or click on the desktop in OS X). Select the Apple Menu, and choose About This Macintosh or About This Computer. The operating system version your computer is running will be displayed on the window that pops up. Mac OS X versions include 10.0, 10.1, 10.2, 10.3, 10.4 and 10.5.

If you have a PC, chances are you are running some form of Windows. If your computer starts up with a splash screen that says "Windows Vista" and have a round Start Button, then you are running Windows Vista. Other versions of Windows, identified by their splash screens, include Windows 98, Windows NT, Windows 2000, Windows Me, Windows XP, Windows Vista and Windows 7.

>Name a few ports in your computer ?
USB, IEEE 1394 ps/2 PS/2 ethernet port lpti vga line in microphone gamejack

>What is Last Known Good Configuration ?
The Last Known Good configuration" is one of the methods which are used to repair our computer system. In this method a restore of data from the backup is not required. This "last known good configuration" is a backup replica of the existing configuration which is stored on the registry key "HKLM\System\CurrentControlSet". This registry key is always updated whenever the system is shut down by the user after successfully and effectively logging on. Our system can be repaired by restoring information from this updated registry key. For instance in case when we install some driver which causes our operating system not to be loaded, this type of repair is helpful and useful.
So it is a very good practice to repair our system without any loss. So whenever we see our operating systemfails to load, simply press F8 and when the message "please select the operating system to start" appears, just select the Last Known Good Configuration. This option can be seen under the "Windows Advanced Options Menu". The Last Known Good Configuration is only useful in the case if we have not logged on yet. Whenever we logon and then shut down or even restart, all of the current configurations always become the "Last Known Good Configuration".

>What is windows Device Manager ?
Device Manager is an extension of the Microsoft Management Console that provides a central and organized view of all the Microsoft Windows recognized hardware installed in a computer.

Device Manager is used to manage the hardware devices installed in a computer like hard disk drives, keyboards, sound cards, USB devices, and more.

>What is MSConfig ?
msconfig.exe is a file which helps to edit and administer text configuration files such as win.ini and autoexec.bat.

Msconfig is used to control what programs and services start with your computer. Its very helpful in troubleshooting startup problems as well as poor performance and getting rid of spyware and viruses.

>What is the Blue Screen of Death and what could be it's causes ?
Sometimes bad or flaky memory (RAM memory, not your hard drive) can cause seemingly random system crashes. If you have just the right combination of programs open and system memory in use, and your computer tries to access a "bad spot" on a RAM chip, the results can be unpredictable. Or they can be the Blue Screen of Death. You can try replacing your RAM sticks one at a time to see if the problem goes away. This involves opening up the system unit and looking at scary wires and stuff, so for some people just living with the problem may be a workable option.

More likely, you have a software problem. Some programs just don't get along... they trample on each other's memory spaces and confusion (or the BSOD) results. And it seems that Windows just gets old and cranky the longer you have it installed. You may solve the problem by using the System File Checker, or if all else fails, by
re-installing the Windows operating system and/or your software packages. If the problem seems to be limited to one particular program, try re-installing just that one first.

Spyware or a computer virus can also make strange things happen.

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