Satellite
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Satellite Internet uses small satellite dishes to transmit and receive data from geostationary satellites orbiting 22,300 miles above Earth's equator. Data is sent to and received from these satellites through radio waves, traveling to a Network Operations Center on the ground that connects to the Internet. Geostationary satellites orbit at the same speed as the Earth's rotation, making them appear stationary from the ground. Satellite Internet has applications including global positioning, weather monitoring, exploration of space, and navigation.
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Japanese GPS system/Quasi Zenith Satellite System
The Japanese GPS system, called QZSS, is a regional satellite navigation system developed by Japan to augment and enhance GPS coverage in the Asia-Oceania region. QZSS uses three satellites in geosynchronous orbits inclined at 43 degrees to ensure at least one satellite is always visible above Japan. The system is still under development, with the first satellite launched in 2010 and more launches planned to reach the full operational configuration of four satellites.
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Satellite
Course Name: Computer Networks
Course Code: CSE 317
Class Topic: Satellite
Submitted To: Pranab Bandhu Nath, Senior Lecturer, CSE Department, City University, Dhaka
Submitted By: Tahsina Tabassum, ID: 1915002503, Batch: 50th, Program: B.Sc. in CSE
Satellite system
Assignment Name: Satellite System
Department: Computer Science and Engineering
Course Name: Computer Networks
Course Code: CSE 317
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2. Mesh topology is mainly used for wireless networks and WAN implementations where communication failures are a concern. It can be either fully connected, where each computer connects to all others, or partially connected where computers connect most frequently.
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Star topology
1) The document discusses the star topology for computer networks, where each device connects to a central hub. Communication between devices must go through the hub.
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3) A disadvantage is that if the central hub fails, all connections are lost since the hub is a single point of failure.
Tree topology
1) The document discusses the tree topology for computer networks, which combines characteristics of bus and star topologies in a hierarchical structure with a root node and descendant nodes.
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Computer networks allow two or more computers to connect and communicate electronically. They establish an architecture that allows different devices to transfer information seamlessly. Computer network technology is implemented to physically connect computers and communication devices. The document then discusses six key ways computer network technology is used in the modern world: 1) Education through teleconferencing and online learning. 2) Security is crucial for computer networks to securely share confidential information. 3) Business use networks for tasks like design, writing, and payroll. 4) Social networks allow people to connect and share views. 5) Mobile users access the internet wirelessly on devices like smartphones. 6) Banking systems rely entirely on networks for online transactions.
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You will hear from Liz Willett, the Head of Nonprofits, and hear about what Walmart is doing to help nonprofits, including Walmart Business and Spark Good. Walmart Business+ is a new offer for nonprofits that offers discounts and also streamlines nonprofits order and expense tracking, saving time and money.
The webinar may also give some examples on how nonprofits can best leverage Walmart Business+.
The event will cover the following::
Walmart Business + (https://business.walmart.com/plus) is a new shopping experience for nonprofits, schools, and local business customers that connects an exclusive online shopping experience to stores. Benefits include free delivery and shipping, a 'Spend Analytics” feature, special discounts, deals and tax-exempt shopping.
Special TechSoup offer for a free 180 days membership, and up to $150 in discounts on eligible orders.
Spark Good (walmart.com/sparkgood) is a charitable platform that enables nonprofits to receive donations directly from customers and associates.
Answers about how you can do more with Walmart!"
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Satellite
- 1. Course Tittle: Computer Networks Theory Course Code: CSE317 Topics: Satellite Submitted to: Pranab Bandhu Nath Senior Lecturer,Dept of CSE City University, Dhaka. Submitted By: Name: Neheruma Sultana Riya ID:1834902578 Dept: CSE(Day) Batch:49th
- 2. Satellite: Satellite Internet is the ability to transmit and receive data from a relatively small satellite dish on Earth and communicate with an orbiting geostationary satellite 22,300 miles above Earth's equator. The orbiting satellite transmits (and receives) its information to a location on Earth called the Network Operations Center or NOC. The NOC itself is connected to the Internet, so all communication made from a satellite dish to the orbiting satellite will flow through the NOC before it reached the Internet. Satellite internet work: Satellite internet works by using radio waves to communicate with satellites orbiting the Earth. Data is sent and retrieved through a communication network that starts with your device and travels through your modem and satellite dish, out to a satellite in space, then back to Earth to ground stations known as network operations centers (NOC). And then, data travels back through this network—out to space and then back to your satellite dish on Earth—to deliver data on your device.
- 3. Geostationary Satellite: There is a location in space where you can place a satellite in orbit so that from the ground, the satellite appears stationary. What is happening is that the satellite is actually orbiting the Earth at the same speed the Earth is rotating. The satellite makes a complete orbit around the Earth in 24 hours, or exactly one day. Geostationary satellites are only located at 22,300 miles directly above the Earth's equator and nowhere else. Applications: Satellite internet uses a five-part relay system: 1. Internet-ready device 2. Modem/router 3. Satellite dish 4. Satellite in space 5. Network Operations Center (NOC) 6. Exploration of the solar system 7. Spacecraft have been sent to explore the space 8. Global positioning system 9. Weather satellites 10.Studying the universe 11.Navigation. 12.Climate & environmental monitoring 13.Safety. ... 14.Land stewardship. References: https://en.wikipedia.org/wiki/Communications_satellite