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1. A computer cannot work without----
- A. Hard disk
- B. Hard disk
- C. Hard disk
- D. Hard disk
Answer: Option C
Explanation:
A computer cannot work without power, an operating system (OS), and programs. Power is essential for all electronic components to operate, while an OS manages the hardware and provides a user interface. Without programs, a computer has no instructions to perform any tasks, from booting up to running applications.
- Power: Just like any other electronic device, a computer needs electricity to run its hardware.
- Operating System (OS): This software manages the computer's resources, allowing it to boot up and run other applications.
- Programs: A computer program is a set of instructions that tells the computer what to do. Without a program, the computer cannot perform any specific task.
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