1 IS 450/650‚ Fall 2013‚ Computer Networks and the Internet Today: • Roster • Syllabus Overview (Syllabus on Blackboard) • Chapter 1 Announcements & Reminders: • 450-1 Homework 1 Due Tuesday 9/17 at 23:59. • 450-1 (TR) Test 1 Tuesday 10/1 • 450-1 (TR) Test 2 Thursday 11/7 • 450-1 (TR) Final Exam Thursday 12/19 8-10 a.m. • Suggestion: start homeworks early and send e-mail if you get stuck. Cell phones & laptops off. Reminder: if printing the notes‚ consider printing 4-up (4 pages
Free OSI model Internet Protocol Suite
The naming of some devices designates the functional layer such as “Layer Two Switch” or “Layer Three Switch”. Router functions focus on “Layer Three”. User workstations and servers are often identified with “Layer Seven”. HUB Hub is a hardware device that contains multiple‚ independent ports that match the cable type of the network. Most common hubs interconnect Category 3 or 5 twisted-pair cable with RJ-45 ends‚ although Coax BNC and Fiber Optic BNC hubs also exist. Ethernet Hubs An
Premium Ethernet Network topology Coaxial cable
2011 The Disadvantages of Social Network Sites It is true that social network sites are growing at an alarming rate and that there are many advantages and disadvantages in using social network sites. If one understands these advantages and attempts to avoid the disadvantages‚ then one can use these sites to improve their knowledge‚ increase personal relationships with Family and friends‚ and create a functioning secure social network on-line. Because social network sites play such an important and
Premium Facebook Social network service
References: 3. Ahmed Jisrawi‚ "GSM 900 Mobile Jammer"‚ undergrad project‚ JUST‚ 2006. 6. Pozar‚ D.‚ Microwave Engineering‚ John Wiley and Sons‚ 2005.
Free Mobile phone GSM Cellular network
and easy access Internet are now quite common people nowadays. It does not matter what kind of the profession is‚ social networks is used daily by people around the world. Even though today social networking is very famous among teenagers‚ it is also has bad effect on teenagers. Social networking can affect the mental of teenagers. It gives influence to teenagers. For example‚ many couples have met each other through Facebook‚ fell in love and also broke up through this social network. Things
Premium Social network service Facebook Internet
Chapter 3 Mobile Radio Propagation: Large-Scale Path Loss 1. (a) Explain the advantages and disadvantages of the 2-ray ground reflection model in the analysis of path loss. (b) What insight does the 2-ray model provide about large-scale path loss that was disregarded when cellular systems used very large cells? 2 .In a 2-ray ground reflected model‚ assume that must be kept below 6.261 radians for phase cancellation reasons. Assuming a receiver height of 2 m‚ and given a requirement that be less
Premium Radio Decibel Amplifier
Network-attached storage (NAS) is file-level computer data storage connected to a computer network providing data access to a heterogeneous group of clients. NAS not only operates as a file server‚ but is specialized for this task either by its hardware‚ software‚ or configuration of those elements. NAS is often manufactured as a computer appliance – a specialized computer built from the ground up for storing and serving files – rather than simply a general purpose computer being used for the role
Premium Computer Computer data storage Hard disk drive
interactions that occur in today’s business world. He suggests a new structure‚ called a network‚ that he believes is a better description of business interactions in some situations. Market‚ Hierarchy and Network In a market‚ there are buyers and sellers and the relationship between buyers and sellers
Premium Computer network Economics Economy
CHAPTER 22 Wireless Sensor Networks: Principles and Applications Chris Townsend‚ Steven Arms‚ MicroStrain‚ Inc. 22.1 Introduction to Wireless Sensor Networks Sensors integrated into structures‚ machinery‚ and the environment‚ coupled with the efficient delivery of sensed information‚ could provide tremendous benefits to society. Potential benefits include: fewer catastrophic failures‚ conservation of natural resources‚ improved manufacturing productivity‚ improved emergency response‚ and
Premium Network topology Sensor node Computer network
1. How would creating a new coordinating position between the CEO and the location managers help the business to grow I would delegate some of the responsibilities that I felt the new location manager should be able to handle. I would first sit down with Lei and Dalman to discuss which duties should fall under the location managers position. I feel task like assisting the store managers with problem solving‚ and weekly meetings should fall under the new location manager position. I feel that
Premium Management Marketing Problem solving