Experiment 1 - Decoders‚ Encoders Objectives: To design a 2-4 decoder To design a 4-2 encoder To use a 7442 IC for BCD to decimal conversion Required IC’s: 7408 AND Gate 7432 OR Gate 7400 NAND Gate 7404 INV Gate 7474 D Latch 7442 BCD to Decimal converter Theory: Decoders The basic function of a decoder is to detect the presence of a particular combination of bits at the inputs and indicate the presence of that particular set of bits by outputting a specified
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NT1210 Mid-Term Exam Study Sheet Chapter 1 1.Kilobye (KB)‚ Megabyte(MB)‚Gigabyte(GB)‚ Terabyte (TB) –Approx. number of bytes in each 2.Capacitor charge to represent 0 or1 3. Convert binary to decimal 4.Hexadecimal 5.Disk drive – platters‚ tracks‚ sectors Chapter 2 6.Digital voice calls 7.Video compression 8.Web address – identify protocol‚ server‚ web page 9.Internet core 10.Device drivers 11.Network topologies Chapter 3 12.Networking standards 13.De Facto standard 14
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logic 1 or logic 0. Since many quantities cannot be represented by two states‚ more than one binary digit can be used to represent a number. For example the number 2510 (twenty five base 10) can be represented by the binary number 110012. It is easy to convert back and forth from binary to decimal by remembering that each digit in a binary number simply corresponds to a power of 2‚ as every digit in a decimal number corresponds to a power of 10. Using the previous example: 101 | | 100 | | 24 |
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3. Convert the binary number 1010110.1001 to decimal. 64 32 16 8 4 2 1 .5 .25 .125 .0625 1 + 0 + 1 + 0 + 1 + 1 + 0. 1 + 0 + 0 + 1 64 + 16 + 4 + 2 + .5 + .0625 = 86.5625 4. Convert the decimal number 1938.257 to hexadecimal. 1938 914 402 156 18 2 -1024 -512 -256 -128 64 32 -16 8 4 -2 1. 914 402 156 18 2 0 1 1 1 1 0 0 1 0 0 1 0 Binary
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fighting bits‚ decimal numbers‚ and countless methods and processes to convert from one to the other. While the methods may be confusing‚ the mathematics behind them is the same for all. In this paper‚ you will learn some of the simpler ways to figure out many of the subnetting questions that you will find on the industry certification tests. Unlike some of the more complex methods‚ these methods use subtraction‚ addition‚ multiplication‚ and division—no converting from binary or decimal. As a matter
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rigid disks? A. Operating frequency B. Area C. Access times D. None of the above ANS: 13. Interfaces to memory and I/O devices are made through A. Central Switch B. Buses C. Data links D. All of the above ANS : 14. What converts data from electrical to other forms of energy in an I/O module? A. Convertor B. Transformer C. Transducer D. Arbiter ANS : 15. Which of the following is not a function of the OS A. Program execution B. Error correction C. Data/Instruction
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tangent of two variables * atan — Arc tangent * atanh — Inverse hyperbolic tangent * base_convert — Convert a number between arbitrary bases * bindec — Binary to decimal * ceil — Round fractions up * cos — Cosine * cosh — Hyperbolic cosine * decbin — Decimal to binary * dechex — Decimal to hexadecimal * decoct — Decimal to octal * deg2rad — Converts the number in degrees to the radian equivalent * exp — Calculates the exponent of e * expm1 — Returns
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13. What are the applications of computers? 14. Specify the reasons to use computers. 15. Define Clients and Servers. 16. Convert the hexadecimal value (2AC) to their binary equivalent. 17. Convert the octal value (127.54) to their decimal equivalent. 18. Convert the hexadecimal value (2B.C4) to their decimal equivalent. 19. Convert (77) 10 to (?) 4. 20. Convert (1715) 10 to (?) 12. UNIT – II 21. What is meant by Installation and Assembling? 22. Define Operating System. 23. Differentiate
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NT1210 Quiz 1 1. How many bits are in a byte? A. 8 B. 4 C. 2 D. 1 2. Electronic devices today use what numbering system? A. Decimal B. Octal C. Binary D. Electronic 3. Convert this decimal number to binary: 97 A. 01100001 B. 01100000 C. 10000001 D. 10010001 4. Convert this binary number to decimal: 00010000 A. 32 B. 24 C. 12 D. 16 5. Unlike earlier telecom networks‚ most modern networks are _____ end-to-end. A. cellular B. analog C. data D. digital 6. What is the typical
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Computer Science PLUS I Volume 1 : Concepts Government of Tamilnadu © Government of Tamilnadu First Edition – 2005 Chairman Syllabus Committee Dr. Balagurusamy E‚ Vice Chancellor‚ Anna University‚ Chennai Co-Ordinator Textbook Writing Dr. Sankaranarayanan V‚ Director‚ Tamil Virtual University‚ Chennai Authors Dr. Elango S‚ Government Arts College‚ Nandanam‚ Chennai Dr. Jothi A‚ Former Professor‚ Presidency College‚ Chennai Mr. Malaiarasu P ‚ Government Arts College‚ Nandanam‚ Chennai Dr. Ramachandran
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