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What is Direct memory access?
Direct memory access (DMA) is a process wherein an external device takes over the control of system bus by the CPU.DMA is for high-speed data transfer by/to mass storage peripherals, for example: hard disk drive, CD-ROM, magnetic tape and sometimes video controllers. For illustration, a hard disk may boast a transfer rate of 5 M bytes per second, that is 1 byte transmission every 200 ns. To generate such data transfer through the CPU is both unnecessary and undesirable.
A four-pole, three-phase inductionmotor is energized from a 60-Hz supply. It is running at a load condition for which the slip is 0.03. Determine: (a) The rotor speed in r/min.
The covers of electrical machines are made of (A) Soft magnetic materials. (B) Hard magnetic materials. (C) Super conductors. (D) Semicond
Q. Explain about Common Control Switching System? Common Control Switching System: A functional block diagram of a common control switching system is displayed in Figure. Contr
Explain mechanisms of propagation of radio communication. Radio communication deals with electronic radiation of electromagnetic energy from one point to another through atmosp
Explain data addressing modes available in microprocessors? Data addressing modes available in microprocessors are given below: Direct Mode Indirect Mode Register Dire
Solenoids find application in a variety of electrically controlled valves. The magnetic structure shown in Figure is a simplified representation of a solenoid in which the flux in
Q. What is the basic working of Decoders? An n-bit binary code is capable of encoding up to 2 n distinct elements of information. A decoder is a combinational network that decode
hint on clamping as a project topic
Question: (a) With the help of a clearly labeled diagram explain the functioning of a basic thermocouple. (b) Briefly explain the principle and operation of strain gauges
Q. Can you explain Twos complement addition? 2's Complement Addition Two's complement addition follows the same rules as binary addition. For example, 5 + (-3) = 2
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