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Digital Computer Electronics

Digital Computer Electronics
The simplified form of the Boolean expression (X + Y + XY)(X + Z) is

X + Y + Z
XY + YZ
XZ + Y
X + YZ
None of these

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Digital Computer Electronics
For an input pulse train of clock period T, the delay produced by an n stage shift register is

2nT
(n-l)T
nT
None of these
(n+l)T

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

None of these
OR
AND
XOR
XAND

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Digital Computer Electronics
With a JK master-slave flip-flop the master is cocked when the clock is _____ and the slave is triggered when the clock is _____

high, low
None of these
set, reset
set, race
race, no change

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Digital Computer Electronics
The _____ is ultraviolet-light-erasable and electrically programmable. This allows the user to erase and store until programs and data are perfected.

None of these
ROM
RAM
PROM
EPROM

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Digital Computer Electronics
A _____ TTL device can sink up to 16mA and can source up to 400 MA.

Low-power
Schottky
None of these
Standard
high-power

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