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Why must a modem be used to transmit binary data through a PSTN? (1) Use sketches and additional text to describe the following modulation methods. (a) Amplitude shift keying (b) Frequency shift keying (2) Discuss the factors that influence the choice of carrier frequency and the bandwidth used by the demodulator section of a modem.
"Super ASCII", if it contains the character frequency equal to their ascii values. String will contain only lower case alphabets (''a''-''z'') and the ascii values will starts from
Q. Create an input buffer ? CODE SEGMENT ... MOV AH, 0AH ; Move 04 to AH register MOV DX, BUFF ; BUFF must be defined in data
Digital circuits also manipulate logicalexpressione.g. IF account is in credit THEN allow phoneto make calls.So a digital circuit must determine if somethingis TRUE or FALSE. Norma
What is a flip-flop? Ans. Flip-flop is particular bit memory cell. This stores individual bit information in its true and compliment form. It is the basic block of any sequ
A program is to be developed to simulate the operations of a scientific calculator. List the facilities to be provided by this calculator. Analyze this using a DFD 0- level and 1-
DATA DICTIONARY ON ONLINE QUIZ SYSTEM
Define miss penalty? The extra time required to bring the desired information into the cache is known as miss penalty.
What is slack? 'Slack' is the amount of time you have which is measured through while an event ‘really happens' and while it ‘should happen’. The term ‘really happens' can a
List the properties which a hashing function should possess to ensure a good search performance. What approaches are adopted to handle collision? A hashing function h must poss
Q. Convert the following decimal numbers into 9s & 10s complement: 1) 3654 2) 99 3) 18.293 Q. Convert the following binary numbers into 1s& 2s complement: 1) 1101
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