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6)what are the various service of internet and protocols ICT-unit-1
The Internet offers a wide range of services that cater to communication, information sharing, entertainment, and business operations. Below are some of the key services provided by the Internet: 1. World Wide Web (WWW) The World Wide Web is a vast collection of interlinked documents, websites, and multimedia content accessible through web browsers like Chrome, Firefox, and Safari. Uses: Accessing websites, reading articles, watching videos, conducting research, and browsing online content. Protocols: Primarily uses HTTP (Hypertext Transfer Protocol) and HTTPS (for secure communication). 2. Email (Electronic Mail) Email allows users to send and receive messages electronically over the Internet. Uses: Communication between individuals or organizations, file sharing, and business correspondence. Protocols: SMTP (Simple Mail Transfer Protocol), IMAP (Internet Message Access Protocol), and POP3 (Post Office Protocol). 3. File Transfer (FTP) The File Transfer Protocol (FTP) allows users to ...
5)Roles of Servers in a Network ICT-unit-1
Roles of Servers in a Network Servers play a critical role in providing centralized services and managing network resources. Here are common types of servers and their functions: 1.File Server: Stores and manages files so that users (clients) can access, upload, and modify shared documents. In an office, employees access documents stored on the file server, which manages storage, security, and backups. 2. Web Server: Hosts websites and delivers web content (HTML pages, images, scripts) to users via the internet or intranet. A web server like Apache or Nginx hosts company websites, allowing users to browse them online. 3. Database Server: Manages databases and handles data storage, queries, and updates. It processes requests from clients who need to retrieve or modify data. A MySQL server handling requests for data in an e-commerce platform, such as customer information or product details. 4. Application Server: Runs and manages applications for users across the network. It...
4) how networks are structure and roles of the servers ICT-unit-1
Network Structures Networks can be structured in various ways, depending on their size, function, and complexity. Here are common types of network structures: 1. Peer-to-Peer (P2P) Networks: Structure: In a P2P network, all computers (nodes) are equal and directly connected to one another. There is no central authority or dedicated server. Each device (peer) acts as both a client and a server, sharing files, printers, or other resources with other peers. Example: Small home networks where devices share files directly. 2. Client-Server Networks: Structure: In a client-server network, there are dedicated **servers** that provide resources and services (like data, files, applications) to **clients** (computers or devices) that request these services. Servers handle resource management and centralize the control of data, while clients access these resources. Example: Corporate networks where workstations connect to a central server for file storage, email, or databases. 3. LAN (Local Area ...
3) Three benefits of using a network ICT-unit-1
Here are three key benefits of using a network: 1.Resource Sharing : Networks enable multiple users to share resources like files, printers, scanners, and internet connections. This eliminates the need for every individual to have their own dedicated resources, saving costs and improving efficiency. 2. Improved Communication : Networks allow for seamless communication between users, both within an organization and externally. Email, instant messaging, video conferencing, and other collaborative tools are facilitated by networks, enhancing teamwork and productivity. 3. Centralized Data Management : With a network, data can be stored and managed centrally, allowing for easier access, backup, and maintenance. This ensures consistency, security, and more efficient data management, as opposed to having data stored on individual devices.
2) Definition of the Internet ICT-unit-1
Definition of the Internet: The Internet is a global network of interconnected computers that enables the exchange of data and information across various systems and devices. It operates through a set of standardized protocols, most notably Transmission Control Protocol (TCP) and Internet Protocol (IP), which allow devices to communicate with each other across different networks. The Internet provides access to vast resources like websites, email, social media, cloud storage, and multimedia content. It is used for activities ranging from web browsing and online shopping to communication and entertainment. Interesting Facts About the Internet: Origin : The Internet evolved from a project called ARPANET, developed in the late 1960s by the U.S. Department of Defense, initially to connect research institutions. First Website : The first website, info.cern.ch, was created by Tim Berners-Lee in 1991, who also invented the World Wide Web (WWW). This site explained how the web worked. Gl...
1) Information and Communication Technology ICT-unit-1
Information and Communication Technology Information and Communication Technology (ICT) refers to the use of technology for managing and processing information and communication. It encompasses a broad range of tools, systems, and services, including hardware, software, networks, and devices that allow for the collection, storage, transmission, and manipulation of data. Key components of ICT include: 1. Computers and Hardware: Physical devices like computers, servers, routers, and mobile devices. 2. Software: Applications and systems that enable the processing of data and information (e.g., operating systems, databases, office productivity tools, and specialized applications). 3. Networks: Communication systems like the internet, intranets, and other wired or wireless networks that connect users and systems. 4. Telecommunication: Technologies for transmitting information, including telephones, video conferencing, and satellite communications. 5. Data Storage: Methods for storing large...