MS DOS is an operating system that has a /an:

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RRB NTPC - 2019

Computer Awareness

MS DOS is an operating system that has a /an:

This question was previously asked in

RRB NTPC 2019 CBT 1 Question Paper (8-Mar-2021) (Shift 2)

Command Line Interface

Voice Line Interface

Graphical User Interface

Open Source Origin

The correct answer is

Command Line Interface

MS DOS Interface Type Explained

MS DOS (Microsoft Disk Operating System) is a foundational operating system primarily known for its method of user interaction.

Understanding the MS DOS Interface

The core characteristic of MS DOS is its reliance on a text-based system where users type commands to interact with the computer. This type of interface is known as a Command Line Interface (CLI).

Command Line Interface (CLI): Users interact by typing commands into a prompt (e.g., C:\>) and receiving text-based responses. This was the standard for early operating systems.
Voice Line Interface: MS DOS did not possess any voice recognition or interaction capabilities.
Graphical User Interface (GUI): GUIs use visual elements like icons, windows, and menus, navigated with a mouse. MS DOS predates widespread GUI use; systems like Windows later introduced GUIs.
Open Source Origin: MS DOS was proprietary software developed by Microsoft, not open source.

Therefore, MS DOS is characterized by its Command Line Interface.

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