Operation Systems Interview Questions and Answers - DoAnswers.com

An operating system (OS) is a software program that manages the hardware and software resources of a computer. A key component of system software, the OS performs basic tasks, such as controlling and allocating memory, prioritizing the processing of instructions, controlling input and output devices, facilitating networking, and managing files. Operating systems provide a software platform on top of which other programs, called application programs, can run. The application programs must be written to run on top of a particular operating system. Your choice of operating system, therefore, determines to a great extent the applications you can run. For PCs, the most popular operating systems are DOS, OS/2, and Windows, but others are available, such as Linux. As a user, you normally interact with the operating system through a set of commands. For example, the DOS operating system contains commands such as COPY and RENAME for copying files and changing the names of files, respectively. The commands are accepted and executed by a part of the operating system called the command processor or command line interpreter. Graphical user interfaces allow you to enter commands by pointing and clicking at objects that appear on the screen.

OS Interviews are getting tough these days as the technology grows faster. To get through the OS interview one needs to update him/herself in a regular manner. Having said that, just before the interview, it is very important to have a quick glance of the reputed OS questions and answers to make yourself comfortable during the interview process. This is where DoAnswers.com helps you in renewing yourself on OS and various other technologies interview preparation.

MS DOS Interview Questions and Answers

MSDOS is a disk operating system for the IBM range (or compatibles) of computers. The MSDOS system resides on diskette (3.5" or 5.25") and the system files may be transferred to a hard disk unit. An operating system is a program which allows competing programs to share the resources of the computer (memory, disk, devices like printers and modems, and processing time). The operating systems first job is to initialise the hardware of the computer system, before running application programs. For personal computers, MSDOS is a single user, single tasking operating system. Single user means only one person uses the computer at a time. Single tasking means that it essentially only runs one application program at a time, and has no inherent support for running more than one application program simultaneously. An operating system provides mechanisms for running programs, handling errors, controlling devices, configuring the computer system, and for MSDOS, a user interface (sometimes called a shell).

MS DOS Interviews are getting tough these days as the technology grows faster. To get through the MS DOS interview one needs to update him/herself in a regular manner. Having said that, just before the interview, it is very important to have a quick glance of the reputed MS DOS questions and answers to make yourself comfortable during the interview process. This is where DoAnswers.com helps you in renewing yourself on MS DOS and various other technologies interview preparation.

Unix OS Interview Questions and Answers

An operating system co-created by AT&T researchers Dennis Ritchie and Ken Thompson. Unix is well known for its relative hardware independence and portable application interfaces. Lots of big companies are using Unix servers for its reliability and scalability. Some of the popular Unix flavours are: Linux, Solaris, HP-UX, AIX, etc. The Open Group holds the definition of what a UNIX system is and its associated trademark in trust for the industry. The UNIX* operating system was designed to let a number of programmers access the computer at the same time and share its resources. The operating system coordinates the use of the computer's resources, allowing one person, for example, to run a spell check program while another creates a document, lets another edit a document while another creates graphics, and lets another user format a document -- all at the same time, with each user oblivious to the activities of the others. The operating system controls all of the commands from all of the keyboards and all of the data being generated, and permits each user to believe he or she is the only person working on the computer. This real-time sharing of resources make UNIX one of the most powerful operating systems ever.

Unix OS Interviews are getting tough these days as the technology grows faster. To get through the Unix OS interview one needs to update him/herself in a regular manner. Having said that, just before the interview, it is very important to have a quick glance of the reputed Unix OS questions and answers to make yourself comfortable during the interview process. This is where DoAnswers.com helps you in renewing yourself on Unix OS and various other technologies interview preparation.

Windows Interview Questions and Answers

Microsoft Windows is a family of operating systems by Microsoft. They can run on several types of platforms such as servers, embedded devices and, most typically, on personal computers. Microsoft first introduced an operating environment named Windows in November 1985 as an add-on to MS-DOS in response to the growing trend of graphical user interfaces (GUI) popularized by the Macintosh. Microsoft Windows eventually came to dominate the world's personal computer market.

Microsoft Windows Interviews are getting tough these days as the technology grows faster. To get through the Microsoft Windows interview one needs to update him/herself in a regular manner. Having said that, just before the interview, it is very important to have a quick glance of the reputed Microsoft Windows questions and answers to make yourself comfortable during the interview process. This is where DoAnswers.com helps you in renewing yourself on Microsoft Windows and various other technologies interview preparation.