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How sensors uses in real time process control
Sensors send data (through an analogue to digital converter - ADC) to a microprocessor or computer that decides whether or not to take action (based on comparison with stored data). If a change is required to be made, computer/microprocessor transmits signals (through a digital to analogue converter - DAC) to devices being controlled and alters their status (for example turn a heater on if a temperature sensor indicates that a temperature is too low) - actuators are often used to open valves, turn on equipment etc. As this is continuously monitored, eventually the temperature will equal the stored value in computer/microprocessor - this will then cause the heater to be turned off.
Why does IPV6 use separate extension headers? Explain. The extension headers in Ipv6 are utilized for economy and extensibility. Partitioning the datagram functionality in sepa
Q. Define Resolution versus Accuracy in mouse? Resolution of mouse is known in CPI (Counts per Inch) it implies that number of signals per inch of travel. This implies the mou
What is MASK OPERATION The mask operation is similar to selective-clear operation except which the bits of Aare cleared only where there are corresponding 0's in register B. th
How many AND gates are required to realize Y = CD+EF+G ? Ans. Y = CD + EF + G for realize this two AND gates are needed (for CD and EF).
Q. Define Strategy Procedure? The strategy procedure is called when loaded into memory by DOS or whenever controlled device request service. The major purpose of the strategy i
What are disadvantages of EPROM? The chip must be physically removed from the circuit for reprogramming and its whole contents are erased by the UV light.
Explain the method to identify the Object Classes You would always be careful while identifying relevant object classes from application domain. Objects may include physical e
Discuss the advantages of store program control (SPC) automation in telephone switching. Advantages of SPC: (i) Simple to control (ii) Simple to maintain (iii) Fine-
The ISCII is an 8-bit code which contains standard ASCII values till 127 from 128-225 it contains characters necessary in ten Brahmi-based Indian scripts. It is defined in IS 13194
Common channel signalling ? Common channel signalling requires no additional transmission help or facilities.
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