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Digital Electronics

Digital Electronics
Which of the following memories uses one transistor and one capacitor as basic memory unit

 DRAM
 Both SRAM and DRAM
 SRAM
 None

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Digital Electronics
The data bus width of a ROM of size 2048 × 8 bits is

 10
 16
 12
 8

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Digital Electronics
A half adder is a ________ circuit.

 Both A and B
 Combinational
 None
 Sequential

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Digital Electronics
The address bus with a ROM of size 1024 × 8 bits is

 16 bits
 12 bits
 8 bits
 10 bits

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Digital Electronics
A digital circuit that can store on bit is a

 registor
 XOR gate
 gate
 flip-flop

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Digital Electronics
The voltage levels for positive logic system

 must necessarily be positive
 must necessarily be 0 V and 5 V
 must necessarily be negative
 may be positive or negative

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