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Questions and Answers
What defines two computers as interconnected?
What defines two computers as interconnected?
They are able to exchange information.
Which of the following is a mode of communication in computer networks?
Which of the following is a mode of communication in computer networks?
What are the two reference models mentioned for computer networks?
What are the two reference models mentioned for computer networks?
The OSI reference model and the TCP/IP reference model.
What is NOT a performance indicator of computer networks?
What is NOT a performance indicator of computer networks?
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E-commerce provides the convenience of shopping from home with online _______.
E-commerce provides the convenience of shopping from home with online _______.
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Which technology can be used for connection in computer networks?
Which technology can be used for connection in computer networks?
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What is a key feature of the client-server model in networks?
What is a key feature of the client-server model in networks?
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A peer-to-peer system has fixed clients and servers.
A peer-to-peer system has fixed clients and servers.
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What is a popular use of home networks?
What is a popular use of home networks?
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What is one of the social issues mentioned related to networking?
What is one of the social issues mentioned related to networking?
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Study Notes
What is a Computer Network?
- A computer network is a collection of interconnected autonomous computers that are able to exchange information.
- Autonomous means that one computer cannot control the actions of another.
- Information can be transmitted through mediums like copper wire, fiber optics, microwaves, or communication satellites.
Uses of Computer Networks
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Business Applications:
- Resource Sharing: Programs, equipment, and data can be shared across a network, saving money and increasing reliability.
- Client-Server Model: A central server provides resources to clients, enabling efficient management and easier scalability.
- High Reliability: Having multiple access points to data can improve reliability and make the system more resilient to potential failures.
- Scalability: Network performance can be increased by adding more resources to the network system.
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Home Applications:
- Accessing Remote Information: Networks provide access to online resources like news, websites, and other information sources.
- Person-to-person Communication: Networks facilitate communication through emails, instant messaging, video conferences, and online newsgroups.
- Interactive Entertainment: Networks enable consumers to enjoy streaming content like videos, live television, and games.
- Electronic Commerce (e-commerce): Networks provide a platform for buying and selling goods and services directly online.
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Mobile Network Users:
- Mobile devices like laptops and PDAs can connect to networks, enabling mobile commerce or "m-commerce."
Social Issues & Challenges
- Communication Conflicts: Unrestricted communication on platforms like newsgroups can lead to disagreements and potentially inappropriate content.
- Employee vs. Employer Rights: Issues arise regarding monitoring employee activities and privacy concerns in the workplace.
- Anonymous Communication: Networks can enable anonymous messaging, raising ethical concerns about accountability and potential misuse.
- Spam and Viruses: Unwanted commercial emails and malicious software can spread through networks.
- Copyright Violations: Easy sharing of music and videos through networks can lead to copyright infringement.
Network Hardware
- Will be covered in later sections.
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Description
Explore the fundamentals of computer networks, including their definition, components, and practical applications in both business and home settings. Learn how interconnected systems operate to share resources efficiently and enhance reliability and scalability.
