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Digital Computer Electronics

Digital Computer Electronics
If a microcomputer has a 64K memory, what are the hexadecimal notations for the first and last memory location?

None of these
0, 64
0000, FFFF
0000, EEEE
0000, 9999

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Digital Computer Electronics
Conversion of an octal number 1068 to binary number is

11001102
None of these
100001102
11100102
10001102

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Digital Computer Electronics
De Morgan's second therm says that NAND gate is equivalent to a bubbled _____ gate.

OR
XAND
XOR
None of these
AND

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Digital Computer Electronics
Which of the following boolean algebra statements represent commutative law

A+AA
None of these
(A+B)+CA+(B+C)
A+BB+A
(B+C)(A.B)+(A.C)

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Digital Computer Electronics
The digits used in a binary number system are _____ and _____

1 and 2
9 and 0
3 and 4
None of these
0 and 1

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Digital Computer Electronics
How many full and half-adders are required to add 16-bit numbers?

16 half-adders, no full-adders
8 half-adders, 8 full-adders
4 half-adders, 12 full-adders
None of these
1 half-adders, 15 full-adders

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