introduction to computer networks pdf

... An Introduction to ATM Networks Harry Perros An Introduction to ATM Networks 8 view to facilitating the international exchange of goods and services, and to ... function is to transform the raw transmission link provided by the physical layer into a reliable communications link. This was deemed An Introduction to ATM Networks 24 This protocol is ... like to learn more about ATM networks. A pre-requisite for this book is basic knowledge of computer networking principles. The book is organized into the following four parts: Part One: Introduction...

Ngày tải lên: 22/02/2014, 05:20

Ngày tải lên: 09/08/2014, 11:21

... connected to the BS and relayed voice calls to it. In order to place a call from a fixed phone to an MTS terminal, the caller first called a special number to connect to an MTS operator. The caller ... transmission and the mobility of most wireless systems give rise to a Wireless Networks1 2 1 Introduction to Wireless Networks Although it has history of more than a century, wireless transmission has ... commerce are to be deployed over wireless networks. 1.2.5 Location/Routing Most wireless networks are also mobile. Thus, contrary to wireline networks, the assumption of a static network topology...

Ngày tải lên: 29/09/2013, 21:20

... figure below, use to dimension the sketch. Pick to modify the dimensions. Pick it as reference. Pick it as reference. Pick it as reference. 1 ME-430 Introduction to Computer Aided Design ... Click . 18 Click Apply button to change the color of part. Click Close button. Click to save the part. 3 Type in ARM_BRACK for the name ... placement surface. 16 Click to add a new color. To open Color Editor, pick . Pick . 13 ADDING THE ROUNDS Click the Round Tool icon . Enter 5 for the radius...

Ngày tải lên: 27/10/2013, 17:15

... only when you deploy to a private assembly that is stored together with the application. For shared assemblies that are available to all applications on the computer, you need to register the assembly ... solution to this dilemma is to stop using the computer s central Registry, to let all files carry information about themselves as part of the file, including version information, and to separate ... in forcing the client to restart the connection. You write the following code segment to connect to the database to solve the problem: Public Sub DBCon(ConStr As String) ' Connect to the database Try '...

Ngày tải lên: 11/12/2013, 14:15

... Introduction to Semiconductors & Diodes EE106 Analogue Electronics Supplementary Notes F. O’Malley April 2005 Silicon Energy Band Diagram ã When an electron jumps to the conduction ... connected to the n region, and the positive terminal is connected to the p region n-Type Semiconductors ã n-type material is formed by adding pentavalent (5 valence electrons) impurity atoms – ... in Semiconductors - Doping ã In an intrinsic semiconductor, there are relatively few free electrons – pure semi-conductive materials are neither good conductors nor good insulators ã Intrinsic...

Ngày tải lên: 13/12/2013, 23:15

... save the file to. Click on Desktop and select the folder you created on the desktop. Then click Save and the image will be saved to the directory on the desktop. To add the image to your page, ... Introduction to Netscape Composer đ Updated February, 00 Welcome to the Introduction to Netscape Composer. This handout is divided into five sections: Inserting ... connection to another Web page). Creating hyperlinks in Composer is very straightforward. ã Click the link icon in the button toolbar. A window will pop up asking you to enter text to display....

Ngày tải lên: 15/12/2013, 02:15

... a solution to the problem of how to adjust the weights from input to hidden units. An answer to this question was presented by Rumelhart, Hinton and Williams in 1986 (Rumelhart, Hinton, & ... pattern vector x p j the j th elementofthepth input pattern vector s p the input to a set of neurons when input pattern vector p is clamp ed (i.e., presented to the network) often: the input ... is multiplied with n, leading to a very large network, which is slow and dicult to train. The Jordan and Elman networks provide a solution to this problem. Due to the recurrent connections, a...

Ngày tải lên: 20/12/2013, 19:15

... ở một nơi nào đó th to n bộ hệ thống cũng bị ngừng. thống dây cáp mạng có thể chọn hoặc Ring Topology hoặc Linear Bus Topology. ARCNET là mạng dạng kết hợp Star/Bus Topology. Cấu hình dạng ... token qua các trạm và đường truyền bus. Chuẩn 802.5 dùng cho mạng dạng xoay vòng và trên cơ sở dùng tín hiệu thǎm dò token. Mỗi trạm khi nhận được tín hiệu thǎm dò token thì tiếp nhận token ... là Token Ring . Nguyên tắc của mạng Token Ring được định nghĩa trong tiêu chuẩn IEEE 802.5. Mạng Token Ring có thể chạy ở tốc độ 4Mbps hoặc 16Mbps. Phương pháp truy cập dùng trong mạng Token...

Ngày tải lên: 21/12/2013, 21:15

... second to last equation to get the second to last unknown. This is repeated until the entire system is solved. An Introduction to Linear Algebra Barry M. Wise and Neal B. Gallagher Eigenvector ... way to calculate X + . x y p Figure 2. The Projection of the vector y onto the vector x. We may also be interested in the projection of a point y onto a subspace. For instance, we may want to ... is the zero matrix to within machine precision. Vector Spaces and Subspaces Before continuing on it is useful to introduce the concept of a vector space. The most important vector spaces are denoted...

Ngày tải lên: 17/01/2014, 04:20

... difficult as the problem of factoring a large integer into its prime factors Another intractable problem that appears to have useful properties that we can use to build a cryptosystem upon is the difficulty ... â2001 6 Concepts in Cryptography 3 Example: RSA ã based on difficulty of factoring a large integer into its prime factors ã ~1000 times slower than DES ã considered secure ãde facto standard ã patent ... opportunity to see first-hand what it takes to develop a cryptographic algorithm. The development process is inherently complex, and the only realistic way to reduce the risk is to open up the...

Ngày tải lên: 17/01/2014, 07:20

... Specification Creation Module 12: Introduction to Functional Specifications Module 12: Introduction to Functional Specifications 448 Module 12: Introduction to Functional Specifications ... to include a chart that translates mandated project variables into explicit design goals. Use prototypes in the functional specification and the review process. Prototypes are invaluable tools ... snapshot Prototyping is a technique used to validate the functional specification by allowing the team and the customer to visualize different aspects of the solution. Prototypes help clarify...

Ngày tải lên: 17/01/2014, 09:20

... 1 ME-430 INTRODUCTION TO COMPUTER AIDED DESIGN TORSIONAL ANALYSIS Using Pro/MECHANICA Pro/ENGINEER Wildfire 2.0 Dr. Herli Surjanhata The U-Joint shown in the figure below is made of steel. A torsion ... done to bring the failure index to below 1.0 in the entire model. Save the results windows as u_joint. Click . 21 Set the Display type to Graph. Set the Quantity to ... surface where torsion will be applied. Step 6: Create a cylindrical coordinate system on the top of the U-Joint. Click on . 30 Change the Type to Capping Surface....

Ngày tải lên: 19/01/2014, 05:20

... is used to refer to the content of a variable variable1=${variable2} ã The braces are essentially used to delimit the variable name. ã The command to assign the value of today variable to x variable ... customize the environment. ã Some of the environment variables are: ã HOME: Stores the location of the HOME directory of a user ã PATH: Contains a list of colon-delimited path names of directories ... false statement is identical to the while true statement. Environment Variables ã All exported variables are environment variables, some of which are meaningful to the shell. ã By changing...

Ngày tải lên: 21/01/2014, 17:20

... due at the beginning of every laboratoryperiod.Thelaboratoryinstructorwilllook to seeifthestudentsattempted to answerallofthe prelaboratory questions and a score will be ... completion.Chem63laboratoryinstructors willinitialthe datasheetsforthelaboratoryreportsattheendofthelaboratoryperiod.Theseoriginaldatasheetsare to be turned in as ... the student’s laboratory report. The complete laboratory report includes the prelaboratory questions and the original laboratory report sheets. Students are to work by themselves inst...

Ngày tải lên: 24/01/2014, 04:20

Ngày tải lên: 21/02/2014, 22:20

... network protocols and services.  Mechanisms to protect networks.  Security tools. Overview of This Course  TCP/IP Suite  Vulnerabilities and solutions  Security protocols built on top of TCP/IP  ... response to ping  Improper response to ARP queries  Improper response to DNS queries  Source routing to suspicious node  Employing a honeypot  Network latency monitoring  Time-domain reflectometers  ... devices (software+hardware) that can be plugged into a computer network to eavesdrop on computers in the network.  Sniffing requires physical access to network medium.  It is a passive activity,...

Ngày tải lên: 14/03/2014, 22:20

Ngày tải lên: 15/03/2014, 09:20

Ngày tải lên: 15/03/2014, 09:20

Ngày tải lên: 16/03/2014, 11:20