Computers work by processing data through a combination of hardware and software. Hardware, the physical components, includes the central processing unit (CPU), memory, and storage, which perform calculations, store data, and execute instructions.
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MCQ
1. What does RAM stand for in computing?
A) Random Access Memory
B) Running Application Module
C) Readily Available Machine
D) Rapid Action Movement
Answer: A) Random Access Memory
Explanation: Random Access Memory (RAM) is a type of computer memory that can be accessed randomly. It stores the data and instructions that the CPU needs in real time.
2. Which of the following is an input device?
A) Printer
B) Monitor
C) Keyboard
D) Speaker
Answer: C) Keyboard
Explanation: A keyboard is an input device used to enter data into the computer. Other options like printers, monitors, and speakers are output devices.
3. What does the hard drive do in a computer?
A) Processes data
B) Stores data permanently
C) Displays data
D) Makes the computer look nice
Answer: B) Stores data permanently
Explanation: The hard drive is the data storage device in a computer, used for storing data permanently. Unlike RAM, the data in a hard drive remains even when the computer is turned off.
4. What is software?
A) The physical parts of a computer
B) A set of instructions that tells the computer what to do
C) A type of computer cable
D) A special kind of computer screen
Answer: B) A set of instructions that tells the computer what to do
Explanation: Software refers to the programs and operating information used by a computer. It is what tells the hardware how to perform tasks.
5. Which of the following is NOT an example of an operating system?
A) Windows
B) Linux
C) Word
D) macOS
Answer: C) Word
Explanation: Word is a word processing software, not an operating system. Operating systems like Windows, Linux, and macOS manage the computer’s hardware and software resources.
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