What is the features and functions of dos?

DOS (Disk Operating System) is a command-line operating system that provides a basic environment for managing files and executing programs. Key features include file management commands (such as COPY, DELETE, and RENAME), support for batch processing through batch files, and a simple interface for interacting with hardware and system resources. DOS operates primarily in a single-user mode, allowing users to navigate directories and manipulate files on storage devices. Its functions also include memory management and basic peripheral control, making it foundational for early computing.