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Q. Explain the External Data Bus?
External Data Bus: A bus which connects a computer to peripheral devices. 8088 microprocessor has 16-bit registers, 16-bit internal data bus in addition to the 20-bit address bus that allows processor address up to 1 MB of memory.
Subtract Contents of Memory and Borrow from Accumulator The contents of the memory pointed by the HL register pair and the borrow flag are subtracted from the contents
Q. Explain Amplitude-shift keying? A carrier's amplitude is keyed between two levels (binary 1 and 0) in binary ASK. Figure shows the functions of a coherent ASK communication
what is the difference between the continuous time system and discrete time system and their advnatages?
How the interrupts can be masked/unmasked in 8086? The 8086 interrupt priorities are concerned; software interrupts have the highest priority, followed by NMI followed by INTR.
Q. What are the necessary conditions to maintain sustained oscillation? The use of positive feedback that results in a feedback amplifier having closed-loop gain |Af| greater t
what is pole core and pole shoe in a dc machine
Q. Current-carrying conductors? Current-carrying conductors, when placed in magnetic fields, experience mechanical force. Considering only the effect of the magnetic field, the
1) only one pair of slip rings are required (to energise the rotating field coil) regardless of the number of phases produced by the alternator (three phases is common because of t
Q. Enumerate different types of errors in measurement. How can these errors be minimized. Sol. Types of errors: Errors may arise from different sources and
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