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Capabilities of Computer System Video Lecture | SSC CGL Tier 2 - Study Material, Online Tests, Previous Year

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FAQs on Capabilities of Computer System Video Lecture - SSC CGL Tier 2 - Study Material, Online Tests, Previous Year

1. What are the main components of a computer system?
Ans. The main components of a computer system include the central processing unit (CPU), memory (RAM), storage (hard drive or SSD), input devices (keyboard and mouse), output devices (monitor and printer), and various peripheral devices such as USB ports and network adapters.
2. How does the CPU work in a computer system?
Ans. The CPU, or central processing unit, is the brain of the computer system. It performs all the calculations, logical operations, and data processing tasks. It fetches instructions from memory, decodes them, executes them, and then stores the results back into memory. The CPU consists of an arithmetic logic unit (ALU) for numerical operations and a control unit that coordinates the activities of different components.
3. What is the role of memory in a computer system?
Ans. Memory, also known as RAM (Random Access Memory), is a temporary storage space that holds data and instructions that the CPU needs to access quickly. It allows the CPU to read and write data at a fast speed, reducing the need to retrieve information from slower storage devices like hard drives. Memory is volatile, meaning it loses its contents when the computer is powered off.
4. How does storage work in a computer system?
Ans. Storage in a computer system refers to long-term data storage, typically provided by hard drives or solid-state drives (SSDs). Unlike memory, storage retains its data even when the computer is powered off. It allows users to store and retrieve large amounts of data, including operating systems, software, documents, and media files. Storage devices use magnetism or flash memory to store data persistently.
5. What are input and output devices in a computer system?
Ans. Input devices are used to enter data and commands into a computer system. Examples include keyboards, mice, touchscreens, scanners, and microphones. Output devices, on the other hand, display or provide the processed information to users. Common output devices include monitors, printers, speakers, and headphones. Input and output devices enable communication between users and the computer system.
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