Computer science and technology

1. CSE Presentation
Group no : 06
Presented by : Sojol Kumar Sarker
Roll : 220851
Registration no : 1087566
Presented to :
MD. Yahiya Bepari
Department of Economics
Pabna University of Science & Technology

2. Internet Architecture & Services

3. Today’s topics
• Overview of internet architecture & services
• Types of internet services
• Understanding of how internet services are provided & delivered

4. What is internet architecture?
Internet architecture refers to the structure, protocols, and components that
govern the functioning and connectivity of the global computer network. It
includes devices, transmission media, addressing systems, protocols like
TCP/IP, ISPs, and IXPs, enabling efficient data transmission and facilitating
global communication and information access.

5. What is internet service?
Internet service refers to the offering of connectivity to the Internet by
providers. It allows individuals and organizations to access online resources,
communicate, and use various digital services. This is achieved through
wired, wireless, or satellite connections, typically requiring a subscription or
fee. Internet service providers (ISPs) manage the infrastructure and provide
the necessary hardware, software, and network support to ensure reliable
Internet access for their customers.

6. Different type of internet services
• Dial-up: Uses a telephone line and a modem to connect to the internet.
It is slow and becoming less common.
• DSL (Digital Subscriber Line): Uses existing telephone lines to provide
high-speed internet access. It offers faster speeds compared to dial-up.
• Cable Internet: Uses coaxial cables to provide internet access. It offers
faster speeds than DSL and is widely available in urban areas.
• Fiber-optic Internet: Utilizes fiber-optic cables to transmit data at
extremely high speeds. It provides the fastest internet speeds and is
gradually being deployed in many locations.

7. • Satellite Internet: Connects to the internet through satellite signals. It is
suitable for remote or rural areas where other types of internet
connections are unavailable.
• Fixed Wireless Internet: Uses wireless signals to deliver internet access to
a specific location. It is typically provided by ISPs using antennas or radio
towers.
• Mobile Broadband: Provides internet access through cellular networks. It
allows devices such as smartphones, tablets, and laptops to connect to
the internet while on the go.

8. Types of Internet service

9. How internet services are provided and delivered
Internet services are provided by Internet Service Providers (ISPs), which are
companies that offer access to the internet. ISPs establish the necessary
infrastructure and network connectivity to enable internet access for their
customers. Here is a overview on how internet services are provided.
• Infrastructure Setup: ISPs invest in establishing the required infrastructure,
such as fiber-optic cables, data centers, satellite communication systems, or
wireless towers, depending on the type of service they offer.
• Network Connectivity: ISPs establish connections with other ISPs and
internet backbone providers to ensure access to a wider network. These
connections are made through peering agreements or leased lines.

10. • Access Technologies: ISPs employ various access technologies like DSL,
cable, fiber-optic, wireless, or satellite to provide connectivity to end-
users. The choice of technology depends on factors like availability,
location, and customer requirements.
• Subscription and Setup: Customers subscribe to an internet service plan
offered by an ISP. This may involve selecting a specific package based on
desired speed, data limits, or additional features. The ISP sets up the
necessary equipment, such as a modem or router, at the customer's
premises.
• Data Transmission: When a user requests to access a website or online
service, data is transmitted over the ISP's network infrastructure. This data
is broken down into packets and routed through various network nodes to
reach the intended destination.

11. • Network Management: ISPs are responsible for managing network
resources, ensuring reliable and efficient data transmission. They monitor
network performance, allocate bandwidth, and implement measures like
traffic shaping or data caps to maintain quality of service.
• Additional Services: ISPs may offer additional services like email accounts,
web hosting, virtual private networks (VPNs), or cloud storage, depending
on their service offerings

12. Q&A session

13. Thank you for your patience