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Digital Electronics

Digital Electronics
The fan put of a 7400 NAND gate is

2TTL
8TTL
5TTL
10TTL

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Digital Electronics
If two numbers in excess-3 code are added and the result is less than 9, then to get equivalent binary

 0110 is subtracted
 0110 is added
 0011 is subtracted
 0011 is added

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Digital Electronics
A multiplexer is a combinational logic circuit used to perform the operation

 AND-AND
 NOR-OR
 XOR-NAND
 AND-OR

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Digital Electronics
An EPROM is

 programmable and erasable
 non erasable
 volatile
 erasable but not programmable

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Digital Electronics
A computer has a word length of 8 bits (including sign). It is required to determine the range of integers that can be stored in the computer. If 2’s complement is used to represent the numbers, then the range will be

 -128 to 128
 -128 to 127
 -256 to 255
 -256 to 256

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

 XOR gate
 gate
 flip-flop
 registor

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