Q. The high voltage level of a digital signal in positive logic is

View solution

Q. A 7477 decoder drives

View solution

Q. BCD numbers are useful whenever

View solution

Q. The decimal equivalent of ABC₁₆ is

View solution

Q. In parallel in-parallel out shift register all bits are loaded and read simultaneously.

View solution

Q. One XOR gate can work as

View solution

Q. A Charge Couple Device (CCD) is a

View solution

Q. In an R-S latch, race condition occurs when

View solution

Q. The logic operation that will selectively clear bits in register A in those positions where these are 1 's in the bits of register B is given by

View solution

Q. The 2's complement representation of the decimal number -4 is

View solution

Q. The following program starts at location 0100H

L X ISP, 00FF - the content if accumulator
LXIH, 0701 - when the program counter
MVI A, 20 H - reaches 0109 H is

S U BM

View solution

Q. In 8085 microprocessor, what is the length of PC (program counter)?

View solution

Q. In decimal system the base of radix is

View solution

Q. The subtraction of a binary number Y from another binary number X, done by adding the 2's complement of Y to X results in a binary number without overflow. This implies that the result is

View solution

Q. The decimal equivalent of the binary number 10110.0101011101 is

View solution

Q. In standard TTL the totem pole stage refers to

View solution

Q. In 8085 microprocessor the value of the most significant bit of the result following the execution of any arithmetic or Boolean instruction is stored in

View solution

Q. A two-input OR gate is designed for positive logic. However, it is operated with negative logic. The resulting logic operation will then be

View solution

Q. A clock signal driving a 6-bit ring counter has a frequency of 1 MHz. How long is each timing bit high?

View solution

Q. A twisted ring counter consisting of 4 FF will have

View solution