Set-I

1 What is CPU overclocking? Explain its advantages and disadvantages in detail.     

Ans 1.

Definition of CPU Overclocking

CPU overclocking refers to the process of increasing the clock speed of a computer’s central processing unit (CPU) beyond its factory-set specifications. The clock speed, measured in GHz, determines how many operations the CPU can perform per second. By overclocking, users force the CPU to run at higher speeds, thereby potentially improving the computer’s performance in tasks such as gaming, video editing, and other CPU-intensive operations.

Advantages of CPU Overclocking

Overclocking can offer significant benefits, especially for tech enthusiasts and professionals

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2. Explain Different Types of Expansion Slots

Ans 2.

Introduction to Expansion Slots

Expansion slots are connectors on a computer’s motherboard that allow additional components or cards to be installed, enhancing the system’s functionality. These slots serve as interfaces for connecting hardware components like graphics cards, sound cards, network cards, and storage controllers. The types of expansion slots have evolved over time to meet the increasing demands of modern computing.

1. Peripheral Component Interconnect (PCI) PCI is one of the earliest types of expansion slots, introduced in the early 1990s. It provides a parallel connection for peripherals and supports

3. a. Describe construction of a hard drive with diagram.
4. List the tips for troubleshooting switch power supply.

Ans 3a.

Construction of a Hard Drive

Introduction to Hard Drive Construction

A hard drive, also known as a Hard Disk Drive (HDD), is a data storage device that uses magnetic storage to store and retrieve digital information. It consists of several key components housed in a protective casing, enabling efficient data storage and retrieval.

Key Components of a Hard Drive

The construction of a hard drive revolves around its primary components, each playing a critical

3b. Introduction to Switch Power Supply Issues

A switched-mode power supply (SMPS) is commonly used in computers and other electronic devices. It converts electrical power efficiently but can encounter issues affecting system functionality. Troubleshooting an SMPS requires systematic steps and attention to safety.

Common Troubleshooting Tips

1. Check Power Connections: Ensure that the SMPS is properly connected to the power

Set-II

4. Explain Blu Ray disk in brief. What are the software standards followed by Blu Ray disk?

Ans 4.

Introduction to Blu-Ray Disc

Blu-ray Disc (BD) is an optical disc storage format designed to store high-definition video and large amounts of data. Developed as a successor to DVDs, Blu-ray discs offer significantly higher storage capacity, with single-layer discs storing up to 25 GB and dual-layer discs holding up to 50 GB. They use a blue-violet laser with a shorter wavelength than the red laser used in

5. Discuss functioning of Compatibility mode, Nibble mode and EPP mode in parallel port.

Ans 5.

Introduction to Parallel Ports

Parallel ports are a type of interface used for connecting peripherals, such as printers and external drives, to a computer. They transmit multiple bits of data simultaneously over parallel lines, making them faster than serial ports for certain tasks. Over time, parallel ports evolved to support various modes of operation to enhance functionality and compatibility.

Compatibility Mode

Compatibility mode, also known as Standard Parallel Port (SPP) mode, is the most basic

6. Discuss maintenance and troubleshooting of a Keyboard.

Asn 6.

Introduction to Keyboard Maintenance

The keyboard is one of the most used peripherals in a computer system and is prone to wear and tear over time. Proper maintenance and timely troubleshooting are essential to ensure its longevity and smooth functioning. A keyboard’s issues can range from stuck keys to complete non-responsiveness, often caused by dirt, spills, or electronic malfunctions.

Regular Maintenance of a Keyboard

1. Cleaning the Surface: Regularly clean the keyboard’s surface with a soft cloth to remove