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interview questions

What is BIOS (Basic Input and Output Software)? Ans.   BIOS stands for Basic Input and Output Software . The BIOS is software that controls the most fundamental operations of a computer and a BIOS is necessary in order to start a computer. Without a BIOS, a computer would not know how to communicate with its hard disk and other devices. The BIOS is stored on a  ROM (Read-Only Memory)  computer chip inside the computer. Many computers in the past few years use "Flash EPROM" chips, which means the BIOS chip can be reprogrammed with an updated BIOS. A BIOS may need to be updated to fix bugs, such as the year 2000 bug, or an update may be necessary in order to support new hardware protocols.  What is Cascade? Ans.  An arrangement of Windows so each window is neatly stacked with only the title bar of each window is showing. What is Command? Ans.  An option form an application's menu, or a command typed in by the user, such as at a DOS prompt or at ...
2.1 Red Hat Red Hat is a billion dollar commercial Linux company that puts a lot of effort in developing Linux. They have hundreds of Linux specialists and are known for their excellent support. They give their products (Red Hat Enterprise Linux and Fedora) away for free. While Red Hat Enterprise Linux (RHEL) is well tested before release and supported for up to seven years after release, Fedora is a distro with faster updates but without support. 2.2 . Ubuntu Canonical started sending out free compact discs with Ubuntu Linux in 2004 and quickly became popular for home users (many switching from Microsoft Windows). Canonical wants Ubuntu to be an easy to use graphical Linux desktop without need to ever see a command line. Of course they also want to make a profit by selling support for Ubuntu. 2.3. Debian There is no company behind Debian. Instead there are thousands of well organised developers that elect a Debian Project Leader every two years. Debian is seen as one of the m...

WHAT IS MAYA SOFTWARE

Autodesk  Maya  /ˈmɑːjə/, commonly shortened to  Maya software , is a 3D computer graphics  software  that runs on Windows, macOS and Linux, originally developed by Alias Systems Corporation (formerly Alias. | Wavefront) and currently owned and developed by Autodesk, Inc.

COMPUTER TRICKS GENERALLY USE IN DAILY LIFE

·          माऊस व्हील एक तीसरा बटन माऊस व्हील एक तीसरे बटन की तरह काम करता है। किसी भी लिंक पर माऊस व्हील को क्लिक करने से वह जालपृष्ठ सीधे एक नए टैब में खुल जाता है। किसी भी खुले हुए टैब पर माऊस व्हील क्लिक करने पर वह टैब बन्द हो जाता है। २६ दिसंबर २०११ ·          बड़ा टेक्स्ट एक साथ सेलेक्ट करने के लिये किसी भी टैक्स्ट एडिटर में बड़ा टेक्स्ट एक साथ सेलेक्ट करने के लिये टैक्स्ट के प्रारंभ में एक क्लिक करें और फिर शिफ्ट दबाकर अंत में एक बार क्लिक करें। इससे टेक्स्ट को आसानी से सेलेक्ट किया जा सकता है। १९ दिसंबर २०११   ·          यू-ट्यूब पर प्रदर्शित वीडियो की गुणवत्ता कम ज्यादा कर के   हम उसके लोड होने का समय भी कम ज्यादा कर सकते हैं। और वीडियो को थोड़ा अच्छा या थोड़ा खराब देख सकते हैं। गुणवत्ता जितनी अच्छी होगी लोड होने में उतना अधिक समय लगेगा। वीडियो की गुणवत्ता प्लेयर के निचले दाएँ हिस्से में एक संख्या के रूप में लिखी होती है और उसी जगह क्लिक...

SWITCH (ITS WORKING)

·          A switch connects multiple computers together in a LAN. After the first data transfer, it creates a “switch table” which matches ports to connected devices by their MAC addresses. ·          Switches, unlike hubs, are able to differentiate between computers as the first time data passes through the switch, it looks to see which MAC addresses are connected to which ports and remembers the layout. ·          What Is It Good For? ·          Creating a LAN. Hubs used to be recommended for this because they were cheaper than switches, but switches are far superior as they minimize the traffic on a network, decrease bandwidth usage, and only send data to the intended computers. ·          For instance Computer A wants to send data to Computer C. The switch...

ROUTER HOW ITS WORK

A  ROUTER is a device that sends packets of data between different networks. A packet is data which also contains the address of the destination.  to send the packet between routers until it reaches its destination. This is how your LAN connects to the wider Internet. So when you enter a search term on Google, your router directs this packet to Google’s servers for processing.   Routers may seem complicated and beyond your understanding, but they're actually quite simple. Take mail as an example. If you want to send a letter to one of your housemates, you might just address it with “Room A”. But what happens if you want to send a letter to your best friend who lives in “Room A” of a different house? You would need more information to differentiate. So you add a zip code. But they live in a different state, which you can’t easily get to. So you hand it over to your friendly mail carrier and using the address and zip code, the...