All questions of Computer Fundamentals /Terminologies for Bank Exams Exam

B) AGP (Accelerated Graphics Port) is a parallel expansion card standard designed specifically for attaching a video card to a computer system to assist in the acceleration of 3D computer graphics. It was first introduced in 1997 by Intel and has since become widely adopted in the industry.

AGP provides a direct connection between the video card and the system's memory, allowing for faster data transfer and improved performance in graphics-intensive applications. It offers higher bandwidth and lower latency compared to other expansion card standards such as PCI (Peripheral Component Interconnect).

AGP operates at different speeds, including AGP 1x, AGP 2x, AGP 4x, and AGP 8x. Each speed represents the maximum amount of data that can be transferred per second. The higher the speed, the faster the data transfer and the better the graphics performance.

AGP also supports features such as sideband addressing and pipelining, which further enhance its performance. Sideband addressing allows the video card to send commands and data to the system's memory independently of the main bus, reducing latency and increasing overall efficiency. Pipelining allows multiple data transfers to occur simultaneously, improving overall throughput.

One of the key advantages of AGP is its dedicated bandwidth for graphics data. Unlike other expansion card standards that share bandwidth with other devices on the system bus, AGP provides a dedicated channel for graphics data, ensuring that the video card has the necessary resources to deliver high-quality graphics in real-time.

In conclusion, AGP is a parallel expansion card standard designed specifically for attaching a video card to a computer system to accelerate 3D computer graphics. It offers higher bandwidth, lower latency, and dedicated resources for graphics data, resulting in improved performance in graphics-intensive applications.

Actuator

An actuator is a device that performs a specific action or outputs a signal in response to a signal from a computer or another control system. It is an essential component of many automated systems and plays a crucial role in converting electrical or digital signals into mechanical motion or physical action.

Function

Actuators serve the purpose of converting energy into mechanical motion. They receive input signals from a computer or control system and translate them into physical actions such as opening or closing valves, moving motors, adjusting positions, or activating other devices. The actuator essentially acts as the "muscle" of the system, carrying out the desired actions based on the instructions received.

Types of Actuators

There are various types of actuators used in different applications, each with its own specific characteristics and purposes. Some common types of actuators include:

1. Electric Actuators: These actuators use electrical energy to generate mechanical motion. They are commonly used in robotics, industrial automation, and other applications that require precise control and high-speed movement.

2. Hydraulic Actuators: These actuators use hydraulic pressure to generate mechanical motion. They are often used in heavy-duty applications that require high force and large movements, such as in construction equipment or aerospace systems.

3. Pneumatic Actuators: These actuators use compressed air or gas to generate mechanical motion. They are commonly used in applications that require quick and responsive movements, such as in automation systems or control valves.

4. Piezoelectric Actuators: These actuators use the piezoelectric effect to generate mechanical motion. They are often used in micro and nano-positioning applications, where precise and small-scale movements are required.

Applications

Actuators find applications in various industries and sectors, including:

- Robotics and automation: Actuators are used in robotic systems to control the movement of arms, legs, grippers, and other parts.

- Manufacturing and industrial processes: Actuators are used to control valves, pumps, motors, and other equipment in industrial processes.

- Aerospace and aviation: Actuators are used in aircraft control systems to move control surfaces, adjust flaps, and perform other critical functions.

- Automotive: Actuators are used in various parts of a vehicle, such as the engine, transmission, braking system, and suspension.

- Healthcare: Actuators are used in medical devices and equipment, such as prosthetics, surgical robots, and automated drug delivery systems.

In conclusion, an actuator is a device that receives signals from a computer or control system and converts them into mechanical motion or physical actions. It plays a vital role in various industries and applications, enabling automation, precise control, and efficient operation of systems and equipment.

Explanation:
An applet is a small program generally written in the Java programming language that was specifically designed to provide interactivity on web pages. Below are some key points to understand this concept:

What is an Applet?
- An applet is a small application that runs within a larger software environment, typically in a web browser.
- It is executed within a web page and can perform various functions such as animations, calculations, and user interactions.

Java Programming Language:
- Applets are primarily written in the Java programming language, which is known for its platform independence and security features.
- Java applets can be easily embedded into HTML documents and run on any platform that supports Java.

Interactivity on Web Pages:
- The main purpose of an applet is to provide interactive features on web pages, allowing users to engage with the content in a dynamic way.
- This interactivity enhances user experience and makes the web page more engaging and user-friendly.

Usage of Applets:
- Applets were popular in the early days of the internet for creating interactive elements such as games, animations, and interactive forms.
- However, with the advancement of web technologies, the usage of Java applets has declined in favor of other web development techniques.
In conclusion, applets are small Java programs that were commonly used to provide interactivity on web pages. They played a significant role in enhancing user experience on the web in the past.

Access Point
An access point is a device that creates a wireless local area network (WLAN) in an office or large building. It acts as a central hub that connects wireless devices to the network and allows them to communicate with each other and access the internet.

Function
- An access point typically connects to a wired network, such as an Ethernet network, and then broadcasts a wireless signal for devices to connect to.
- It provides a secure and reliable connection for wireless devices, such as laptops, smartphones, and tablets, to access the network and the internet.

Types of Access Points
- Standalone Access Points: These are individual devices that are connected to a wired network and provide wireless connectivity.
- Controller-Based Access Points: These access points are managed by a central controller, which helps in managing multiple access points from a single interface.
- Cloud-Managed Access Points: These access points are managed through a cloud-based platform, allowing for remote management and monitoring.

Benefits of Access Points
- Increased Mobility: Access points provide wireless connectivity, allowing users to move around freely within the network's coverage area.
- Scalability: Access points can be easily added to expand wireless coverage in an office or building.
- Improved Connectivity: Access points help improve network connectivity by providing a strong and reliable wireless signal.
In conclusion, access points play a crucial role in creating and maintaining wireless networks in offices and large buildings, providing a reliable and secure connection for wireless devices to access the network and the internet.