Iqbal Rahman discusses different types of computer networks. He explains that a computer network is a collection of computers connected together through wired or wireless media to share data and information. Rahman then describes different network topologies including bus, star, ring, mesh, peer-to-peer, linear, and tree. He analyzes the advantages and disadvantages of bus, star, and ring topologies. Finally, Rahman lists some common network tools used such as hubs, switches, routers, cables, and network interface cards.

1. Iqbal Rahman
Program Studi S1 Sistem Informasi
Fakultas Sains dan Teknologi
Universitas Islam Negeri Sultan Syarif Kasim Riau
http://sif.uin-suska.ac.id/
http://fst.uin-suska.ac.id/
http://www.uin-suska.ac.id/

2. Understanding the Network
 Informatics experts understanding the
network is the set between two or more
computers connected to each other, with
cable or wireless transmission media.
 According to us understanding the
computer network is a collection of
computers that mutual tehubung through
wired and wireless media that can share
data and information.

3. Network Characteristics
 Speed
 Flexibility
 Interface Transparency
 Reliability
 Adaptability
 Security

4. TYPE NETWORK

5. Geographically
A. Local Area Network (LAN)
B. Metropolitan Area Network (MAN)
C. Wide Area Network (WAN)
D. Internet
E. WIRELESS

6. Based on Data Transmission Media
 Wired Network
 Wireless Network (Wifi)

7. Based on Information / Data Source
Distribution
1. Centralized Network
2. Distributed Networks

8. Network Topology

9. Topologi Bus

10. Advantages & Disadvantages of Bus Topology
Excess Bus Topology:
1. Installation costs can be considered very cheap
2. because it uses only a few cables.
3. The addition of new client / workstation can be
4. done easily.
5. The topology is very simple and easy to apply
Disadvantages of Bus Topology:
1. If one of the cables on the bus network topology is
broken or problematic, it may interfere with other
workstation / client computers.
2. The process of sending (sending) and receiving
(receiving) data is less efficient, usually data collisions
often occur in this topology.
3. Topology that is very old and difficult to develop.

11. Topologi Star

12. Advantages & Disadvantages of Star Topology
Excess Star Topology, namely:
1. If one of the computers has problems, the network on this
topology is still running and does not affect other computers.
2. Flexible
3. Level of security can be quite good than the bus topology.
4. Ease of problem detection is quite easy if there is damage to
the network.
The shortcomings of Star Topology are:
1. If the switch / hub that notabenya as a central point have
problems, then all the computers connected to this topology
also have problems.
2. It takes quite a lot of cables, so the expenses incurred are
quite expensive.
3. The network is highly dependent on the central terminal.

13. Topologi Ring

14. Advantages & Disadvantages of Ring
Topology
Excess Ring Topology :
 It has better performance than bus topology.
 Easy to implement.
 Reconfiguring and installing new devices can be fairly easy.
 The installation cost is quite cheap.
Lack of Ring Topology :
 Communication performance in this topology is judged by the
number of points or nodes.
 Troubleshooting can be fairly complicated.
 If one of the connections breaks, then the other connection also
break up.
 If one of the connections breaks, then the other connection also
break up...

15. Other Topologies
 Topologi Mesh
 Topologi peer to peer
 Topologi Linier
 Topologi Tree
 Topologi Hybrid

16. Network Tools
 Hub
 Swicth
 Router
 UTP cable
 RJ45
 Modem
 NIC
 Repeater