controls the flow of data between computers * Protocols will determine the speed of transmission‚ error checking method‚ size of bytes and whether synchronous or asynchronous * Examples of protocols are: TCP/IP‚ token ring‚ CSMA/CD * Every communication system has 5 basic requirements: * Data Source: where the data originated * Transmitter: device used to transmit data * Transmission Medium: Cable or non-cable * Receiver: Device used to receive data * Destination:
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essentially a special shift register that loads data in parallel and then shifts it out bit by bit at a specific rate. The receiver‚ on the other hand‚ shifts in data bit by bit and then reassembles the data. The serial line is ’ 1’ when it is idle. The transmission starts with a start bit‚ which is ’O’‚ followed by data bits and an optional parity bit‚ and ends with stop bits‚ which are ’1’. The number of data bits can be 6‚7‚ or 8. The optional parity bit is used for error detection. For odd parity‚ it is
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source/destination network‚ before another terminal TE is connected. Bearer service comprises all services that enable transparent transmission of data between the interfaces to the network. Interfaces like U‚ S‚ and R in case of ISDN have not been defined for all networks‚ so it depends on the specific network which interface is used as a reference for transparent transmission of data. In classical GSM model‚ bearer services are connection oriented and circuit -or packet- switched. These services only
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relationship between the transmission of the car‚ its size (class)‚ the year of manufacture‚ the number of cylinders and engine displacement and fuel efficiency. Cars that can drive more miles per gallon of fuel used will be the most fuel-efficient. Inversely‚ cars that consume a lot of fuel will not be fuel-efficient. Question 1- ------------------------------------------------- Transmission vs. Fuel Efficiency In order to analyze the relationship between the transmission cars and fuel efficiency
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communication media. Analog and Digital Data Transmission There are a number of differences between analog and digital transmission‚ and it is important to understand how conversions between analog and digital occur. Now with the digital age taking over‚ many people think that analog transmission methods are no longer used. This is a big misconception and certainly not true. To understand analog‚ let’s first look at this form of transmission. An analog wave form or analog signal is characterized
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in realtime applications including telephone voice and real-time video 3. List out some of the control functions of LAPF core Frame delimiting‚ alignment and transparency Frame multiplexing/demultiplexing using the address field Detection of transmission errors Congestion control functions 4. What is called a cell in ATM In ATM‚ the information flow on each logical connection is organized into fixed size packets called cells 5. What are the planes in protocol reference model User plane Control
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Fig. 2.1.1. Here there are five basic components: • Source: Source is where the data is originated. Typically it is a computer‚ but it can be any other electronic equipment such as telephone handset‚ video camera‚ etc‚ which can generate data for transmission to some destination. The data to be sent is represented by x(t). COMMUNICATION MEDIUM Figure 2.1.1 Simplified model of a data communication system • Transmitter: As data cannot be sent in its native form‚ it is necessary to convert it into
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Third generation-C3 (1968–1982) Main article: Chevrolet Corvette (C3) [pic] [pic] 1971 Corvette Stingray Convertible The third generation Corvette‚ patterned after the Mako Shark II concept car‚ was introduced for the 1968 model year and was in production until 1982. C3 coupes featured the first use ofT-top removable roof panels. It introduced monikers that were later revived‚ such as LT-1‚ ZR-1‚ and Collector Edition. In 1978‚ the Corvette’s 25th anniversary was celebrated with a two-tone
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something lightweight since they will run better on an electric battery than a bigger vehicle will. A car with a manual transmission is better for an electric car since cars with electric motors do not necessarily need a transmission. A manual car uses a controller rather than a transmission to make the car run backwards and forwards. In addition‚ an automatic transmission will waste too much of your car’s energy. The car you choose should also have enough room for an electric battery. You
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Benchmarks……………………………………………………………………4 4. Subprojects…………………………………………………………………………………...4 2. DESIGN PROCEDURE…………………………………………………………………………5 1. Biosensors……………………………………………………………………………………5 2. Analog ECG Circuitry……………………………………………………………………….5 3. Data Transmission between Wrist and the Walking Stick…………………………………..9 2.4 A/D conversion of Analog ECG signal to Digital ECG signal………………………………10 2.5 Heart Attack Detection…………………………………………………………………….....11 2.6 Emergency Calling…………………………………………………………………………
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