Which of the following is an example of application software?

• A. Operating System
• B. Device Driver
• C. BIOS
• D. Firmware

Answer: (A)

Application software refers to programs that help you perform tasks directly, such as creating documents, browsing the web, or running other applications. The operating system fits this idea in this context because it provides the environment and services that allow all other software to run on the hardware. It manages resources like memory, processes, and input/output, and presents interfaces that end-user programs use to function. In contrast, a device driver is specialized software that communicates with a specific piece of hardware, BIOS is the basic firmware that initializes hardware at boot, and firmware is low-level software embedded in devices to control their hardware. Those lower-level pieces enable hardware operation but aren’t the primary tools users use to accomplish tasks; the operating system is the platform that enables those tasks and applications to run, making it the best example among the options.