COMPUTER SCIENCE AND ENGINEERING
UNIX
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Question
[CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
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file
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directory
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executables
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None of the above
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Detailed explanation-1: -Everything is a file is an idea that Unix, and its derivatives, handle input/output to and from resources such as documents, hard-drives, modems, keyboards, printers and even some inter-process and network communications as simple streams of bytes exposed through the filesystem name space.
Detailed explanation-2: -While it is reasonably safe to suppose that everything you encounter on a Linux system is a file, there are some exceptions. Directories: files that are lists of other files. Special files: the mechanism used for input and output. Most special files are in /dev, we will discuss them later.
Detailed explanation-3: -In Linux/Unix operating system everything is a file even directories are files, files are files, and devices like mouse, keyboard, printer, etc are also files.
Detailed explanation-4: -In Linux, as in MS-DOS and Microsoft Windows, programs are stored in files. Often, you can launch a program by simply typing its filename. However, this assumes that the file is stored in one of a series of directories known as the path. A directory included in this series is said to be on the path.