PTIK Pertemuan 5 RZK

Summary

This video introduces computer networks as systems of interconnected computers using communication protocols. It covers various types of networks based on geographic scope, including Local Area Networks (LAN), Metropolitan Area Networks (MAN), and Wide Area Networks (WAN), each with unique advantages and communication methods. The video also discusses configurations like peer-to-peer and client-server networks, emphasizing their functionalities and limitations. Lastly, it reviews transmission media, including cable types and wireless technology, highlighting their characteristics, benefits, and challenges, making it a comprehensive guide to understanding computer networking.

Takeaways

• 😀 Computer networks consist of interconnected computers using communication protocols.
• 😀 Advantages of computer networks include sharing hardware, data, and information efficiently.
• 😀 LAN (Local Area Network) connects computers in a limited area, like homes or offices, using cables or wireless connections.
• 😀 MAN (Metropolitan Area Network) spans 10 to 50 km, connecting multiple LANs with optical fiber or wireless media.
• 😀 WAN (Wide Area Network) covers larger distances, linking cities, countries, or continents, often forming the internet.
• 😀 Peer-to-peer networks have equal status among computers but are less secure and not suitable for larger networks.
• 😀 Client-server networks centralize management with a server providing services to clients, improving security and data management.
• 😀 Various transmission media are used in computer networks, including copper cables, fiber optics, and wireless technology.
• 😀 Twisted pair cables come in two types: STP (shielded) and UTP (unshielded), each with distinct advantages and disadvantages.
• 😀 Wireless technology enables communication without cables, using electromagnetic waves, though it may face issues like signal delay and security.

Q & A

What is a computer network?

A computer network is a collection of computers connected to one another using communication protocols to facilitate two-way communication and data exchange.

What are the main types of computer networks based on geographical coverage?

The main types are Local Area Network (LAN), Metropolitan Area Network (MAN), and Wide Area Network (WAN).

What is a Local Area Network (LAN) and what are its advantages?

A LAN connects computers within a limited area, such as a home or office, allowing for resource sharing, data backup, and efficient communication without incurring phone costs.

How does a Metropolitan Area Network (MAN) differ from a LAN?

A MAN covers a larger area, typically 10 to 50 kilometers, and connects multiple LANs, often using fiber optic cables for data transmission.

What characterizes a Wide Area Network (WAN)?

A WAN connects networks over vast distances, such as cities or countries, and is composed of multiple LANs and MANs, using technologies like satellites for high-speed data transfer.

What are the two primary network configurations mentioned?

The two configurations are Peer-to-Peer and Client-Server.

What are the advantages and disadvantages of a Peer-to-Peer network?

Advantages include lower costs and ease of implementation. Disadvantages involve lower security and potential performance issues as more users join the network.

What is the role of a server in a Client-Server network?

In a Client-Server network, the server provides services and resources to clients, managing data and ensuring security.

What types of transmission media are used in computer networks?

Transmission media include various types of cables (like coaxial, twisted pair, and fiber optic) and wireless technologies that utilize electromagnetic waves.

What are some advantages of using wireless technology in networks?

Wireless technology offers easy installation, mobility, and quick setup, allowing devices to connect without physical cables.