To be an efficient programmer requires good knowledge of programming languages and their syntaxes along with a strong understanding of algorithms and data structures that can help in optimizing the code's performance, efficiency, and scalability.
Computer Software can be defined as any type of program or application designed for use on computers, tablets, smartphones etc., that helps perform various tasks such as word processing, spreadsheets, presentations, games, music and video editing. It is usually written in a programming language like Java, C++, Python, Ruby On Rails, Swift, Objective-C, or HTML5/CSS3 for web development purposes.