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Write explanatory notes on Hard disk drive controller.
Hard disk drive controller: It converts instructions from software running upon the computer to the electrical signals needed to operate the hard disk. The function of a disk controller is track and sector selection, disk drive selection and head loading, parallel to serial conversion and to parallel of data and error checking. The data recorded in a magnetic disk is the combination of data and clock. Thus, data read should be separated from the clock information. The data processed through a CPU or stored in the main memory is into the byte form. The bytes to be recorded upon a magnetic disk should be converted in serial format.
Determine the Service and Backwash Rates The system on site is a pressure sand filter, with a service curve. The filter is backwashed using the feed pump, at a higher flow rat
State and prove parallelogram law of forces and explain it''s applications
Q. What is current gain in RC coupled amplifier? Current gain is the ratio of the output current to the input current. we represent it as A i . A i =I o /I s it can
Q. A transmission line with air dielectric is 25 m long. Find, in wavelengths, how long the line is at frequencies of 1 kHz, 10 MHz, and 100 MHz.
(i) Sketch a fully-labelled electro-pneumatic circuit showing your actuators in the START position and employ metered out speed control with mono-stable 5/2 DCV's having solenoid a
Q. For a 10-bit R-2R ladder-network D/A converter with an MSB resistor value of 10 k, what is the value of the LSB resistor?
please explain phasor diagram and equivalent circuit
The contents of compressed gas cylinders can range from highly flammable substances, such as hydrogen, propane and ethane (acetylene), to toxic gases, such as chlorine, sulphur dio
Consider the arrangement shown in Figure. A conductor bar of length l is free to move along a pair of conducting rails. The bar is driven by an external force at a constant velocit
Q. What is meant by regulation? The output of most power supplies should be a constant voltage. Unfortunately, this is difficult to achieve. There are two factors that can caus
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