is there a way to us 2 dstv smartcards with one subcription at once?

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What is meant by commutation?

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what is setup time and hold time ?

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Define mean life of a carrier.

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Draw the block diagram of a 128 line EPABX and explain its operation?

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What is the main purpose of power electronics?

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Where the two port networks is used ?

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with a neat sketch, show all the interconnections required between a 8085 processor and a RAM of size 4KB mapped in the range 2000H-2FFFH.

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interface an 8-pin switch with 8085 microprocessor located at 0AAH and LEDs at port 55H, draw the circuit diagram. Write down a program to read the switches and do the following: > if the parity of the switch is odd, start counting upward until it reaches 0FFH. > if the parity of the switch is even, start counting downwards until it reaches 00H.

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Define why r-c filters are suitable only for light loads?

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how shift register is shifting bits?

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draw the interface diagram of 8085 microprocessor having input ports at 23H, 2FH, EFH, and output ports at 44H, 2FH, EFH, and FFH using NAND gates only.

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