NETWORK

(Computer Network)

• Polinus Harita
• Yemima Gowasa
• Ifati Hulu
• Samotokhi Giawa

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Supporting Lecturer: Haniati Gowasa,S.Pd.,M.Pd

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Kelompok 6

Agenda

Definition

Topologies

History

Types

Devices

Benefits & Summary

Enables users to share files, printers, internet connections, and communicate more easily.

Definition of Computer Network

"A computer network is a collection of computers and other devices connected together to share data, information, and resources through communication media."

What it does

What it does

Education, business, government, offices, and daily life. The Internet is the largest example.

ARPANET project launched by the U.S. Department of Defense became the foundation of the modern internet.

History of Computer Networks

1960s

(Tahun 1960-an)

Early Era

(Era Awal)

Modern Era

(Modern Dulu)

As technology advanced, computer networks became widely used in schools, offices, and homes.

Networks were mainly used for military and research purposes only.

Types of Computer Networks

LAN

(Local Area Nerwork)

WAN

(Wide Area Network)

MAN

(Metropolita Area Network)

• Limited coverage area
• High data transfer speed
• Relatively low cost

• Covers a whole city
• Connects multiple offices
• E.g. city-wide network

• Global coverage
• Connects countries
• The Internet is the biggest example

Layout or structure of connections between devices

Network Topologies

✔ Saves cable, easy to install

✘ If main cable fails, network stops

✔ Organized data flow

✘ One failure disrupts whole network

✔ Easy maintenance, stable connection

✘ Requires more cables

✔ Very reliable connection

✘ Expensive installation cost

Network Devices

ROUTER (Perute)

Menghubungkan satu jaringan ke jaringn lain.

SWITCH (Mengalihkan)

Menghubungkan beberapa perangkat dalam sebuah jaringan.

HUB (Pusat)

Mendistribusikan jaringan ke perangkat.

MODEM (Modem)

Mengubah sinyal digital menjadi sinyal analog dan sebaliknya.

NETWORK CABLE (Kabel Jaringan)

Berfungsi sebagai media komunikasi untuk transfer data.

ACCESS POINT (Titik Akses)

Menyediakan koneksi nirkabel/Wi-Fi.

Benefits, Advantages & Disadvantages

BENEFITS

ADVANTAGES

DISADVANTAGES

• Easier communication
• Faster data sharing
• Cost efficiency
• Easy access to information
• Supports collaboration

• Fast data exchange
• Improves work efficiency
• Allows resource sharing

• Vulnerable to viruses & hackers
• Requires maintenance costs
• Dependence on network systems

Conclusion & Suggestions

Computer networks should be used wisely and securely in order to avoid misuse and protect important data.

A computer network is an important technology that allows computers and devices to connect and exchange information. Computer networks are divided into several types such as LAN, MAN, and WAN. Networks also use various supporting devices such as routers, switches, and modems. With computer networks, communication and information exchange become easier, faster, and more efficient.

Conclusion (Kesimpulan)

Suggestion (Saran)

THANK YOU

FOR YOUR ATTENTION

Questions? We're happy to discuss!

(Ada pertanyaan? Kami senang Berdiskusi!)

Group 6 | Informatics English | Niasraya University | 2026