Latest Quiz CS302

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GMT - 3 Hours Latest Quiz CS302

Post by winnersgroup on Tue Feb 08, 2011 3:50 pm

Quiz sc302 by hafiz azam





1.

Which of the following is the drawback of DRAM?
·

Discharging of the capacitor over a period of time.


·


All the information stored in terms of binary bits would be lost


·


if capicitor is not recharged


·





2.


With a 100 KHz clock frequency, eight bits can be serially entered into a shift register in
·

80 micro seconds ·

8 micro seconds ·

80 mili seconds ·

10 micro seconds ·



3.


A multiplexer with a register circuit converts
·

Serial data to parallel ·

Parallel data to serial ·

Serial data to serial ·

Parallel data to parallel



4.


32-bit data word consists of:
·

2 bytes ·

2 bytes ·

2 nibbles ·

4 nibbles



5.


A stage in the shift register consists of
·

a latch

6.


A divide-by-10 Johnson counter requires
·

ten flip-flops ·

our flip-flop ·

five flip-flops ·

five flip-flops ·



7.


write data to the memory, the write cycle is initiated by
·

assigning the values to variables. ·

reserving the space for variables. ·

applying the data signals.



8.


The bit capacity of a memory that has 1024 addresses and can store 8 bits at each address is:
·

8 ·

1024 ·

4096 ·

8192



9.


To parallel load a byte of data into a shift register, there must be




·

0ne clock pulse ·

one clock pulse for each 1 in the data ·

eight clock pulse ·

one clock pulse for each 0 in the data



10.


The 64-cell array organized as 8 x 8 cell array is considered
·

as an 64 byte memory ·

as a 16 byte memory ·

as an 8 byte memory ·

as an 4 byte memory
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GMT - 3 Hours Re: Latest Quiz CS302

Post by winnersgroup on Tue Feb 08, 2011 3:52 pm

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