3. The mechanism that is used to detect/avoid/correct data transmission collision in Layer 2 is called Carrier sense multiple access (CMSA). CMSA is a Media Access Control protocol that listens for signals (senses) on the network medium (carrier) before transmitting data. The rule is that only one device can transmit data at a time. Before a device begins to transfer data, CSMA will listen for any transmissions on the network. If CSMA notices there is a transmission, then CSMA will wait for that
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Assignment 7 Siddhant Sharma 2013160 a) Division of Assignment In Assignment 6, we used an ADC to convert values that the LDR and NTC thermistor measured and make LEDs light up according to the particular threshold values. Here, we are required to take a user driven input from the terminal, check if the input is valid, and then see whether the LED light from the LDR or NTC is on or off. We do this using a UART library. We connect the MCU via a cable to a serial USB port, here : USB0. For taking
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Task 1: Speech is the ability humans have developed to communicate between themselves with the sound produced by their mouth and nose. There are two types of speech sounds: The voiced and unvoiced one. A voiced sound is created when air pass through our vocal cord in direction of the mouth. This air vibrates in a certain frequency, normally between 50 and 400 Hz that produces the sound heard and desirably understood by the receiver ears. This frequency is controlled by varying the shape of the air
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to (01110)3 to get the equivalent ternary number as (12210)3 = (156)10. By performing exactly reverse process, we can reconvert the received m digit ternary message to its equivalent binary form. That is first we scan the given ternary number from its most significant (leftmost) digit position in a digit by digit manner, and convert the part of the so far scanned ternary digits to its equivalent binary representation. Because of Binary to ternary conversion of data we have the advantage of reduction
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Task Two How Genetic information is stored in a sequence of Nitrogenous bases in DNA DNA is the principle molecule responsible for carrying genetic information within almost all living organisms for their development. They also provide some of the apparatus by which the instructions are carried out. This excludes viruses, as they use RNA, to carry their genetic information. (Image 1: DNA molecule, nucleotide, base pairing. Reference: http://www.britannica.com/EBchecked/topic/422006/DNA-sequencing
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TASK 1 Comparing light and electron microscope Note:- A microscope is an instrument used for viewing a tiny object that cannot be seen with our naked eyes. The microscope is an important instrument found in the laboratory. We have two types of microscope. Light Microscope and Electron Microscope. The light Microscope is one which can be illuminated by light while an electron microscope is one which can be illuminated by electron. Electron microscope is expensive and not portable compared to the light
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Q10.1 Magnetic tapes provide sequential access so it has to start and stop and reverse the head direction to search for the data. While the disk is rotating continuously and it can provide random access of data so the read write operation is easier in disks than the magnetic tape. Read/Write operation in hard disk most hard disk consist of several coaxial platters, these platters continuously move around the axis. the collection of number of platters forms a cylinder the read/write head is over the
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Questions relating to Sanders and Hunter Chapt 7 1. The 31P spectrum of phosphate changes as the pH of the solution is changed, because it changes what is in the solution. It can make the phosphate change from its anionic form to its cationic form which changes the spectra because it reflects the molecular structure. 2. The time scale of the instrument is what determines whether the signals are averaged or separate, if it is in slow exchange the signals are spate and if they are in fast exchange
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4.3 Functional Requirement The main inputs, outputs and major functions of the system are as follows. Inputs: Administrator enters his user id and password. Users enter their user id and password. Users advertise the details of the vehicle. User can also search for vehicle(s) of his choice. User can provide feedback. User calculate Minimum Selling Price(MSP). User search for service stations. Processing: Administrator verifies whether the advertisements is legitimate. Once the
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Research: Amazon sells a phone called the LG Optimus Exceed 2 (Verizon Prepaid) 31.16 *including shipping* ships in 1-2 business day ships anywhere in the US with access to Wi-Fi you can call and text anyone anywhere perfect for talking to friends and colleagues. SMU offers public computer use as well as SMU Community use. All computers have Microsoft Word, Excel, and PowerPoint. These computers can also be used to access the internet as long as it is for academic purposes. Plan 1: Bradford can
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