Computer fundamental MCQ Questions and answers- Technical Aptitude

The MS-DOS operating system is a command-driven interface, single-tasking operating system. MS-DOS allows the user to navigate, open, and otherwise manipulate files on their computer from a command line instead of a GUI like Windows.

Mac OS was an early desktop operating system that included an integrated graphic user interface with point-and-click features in Mac OS. It was also the underlying basic operating system on which early versions of Windows ran as a GUI.

The most recent version of the Mac OS is based on the Unix operating system. UNIX is an operating system which was first developed in the 1960s, and has been under constant development ever since. By operating system, we mean the suite of programs which make the computer work. It is a stable, multi-user, multi-tasking system for servers, desktops and laptops.

The Unix operating system was initially created in the early 1970s at AT & T Bell Labs. The history of Unix dates back to the mid-1960s. When the Massachusetts Institute of Technology, AT & T Bell Labs and General Electric were jointly developing an experimental time-sharing operating system called Multics for the GE-645 mainframe.

The essential difference between an operating system like Linux and one like Windows is that any programmer can modify Linux code, which is not permitted with Windows. Linux is Open Source and is free to use. Windows is not open source and is not free to use.

Availability of technical support is not an advantage of open-source operating systems over proprietary versions. Usability , Whilst some open source software is easy to use, many programmes are created to meet the needs of the developer, without considering usability.

Windows uses icons to graphically represent items, such as programs and folders. This is part of Windows GUI or graphical user interface. Icons appear everywhere throughout Windows, and are really just pictures that depict the type of items they represent. The Windows desktop contains a range of desktop icons.

The main purpose of the offline device is save computer time. Offline device is a device which is not connected to CPU. When a computer or other device is not turned on or connected to other devices, it is said to be "offline".

Multitasking refers to the ability of an operating system to have more than one program open at one time.

Data flow means flow of data within a system machine where as Data transmission takes place with in different machines.