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Digital Electronics
Digital Electronics
While using a frequency counter for measuring frequency, two modes of measurement are possible. 1. Period time 2. Frequency mode There is a ‘cross-over frequency’ below which the period mode is preferred. Assuming the crystal oscillator frequency to be 4Mhz the crossover frequency is given by
8 Mhz
1 Khz
2 Mhz
2 Khz
8 Mhz
1 Khz
2 Mhz
2 Khz
Answer
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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 1’s complement is used to represent the numbers, then the range will be
-256 to 255
-256 to 256
-128 to 127
-127 to 127
-256 to 255
-256 to 256
-128 to 127
-127 to 127
Answer
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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 127
-256 to 255
-128 to 128
-256 to 256
-128 to 127
-256 to 255
-128 to 128
-256 to 256
Answer
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Digital Electronics
X = 01110 and Y = 11001 are two 5-bit binary numbers represented in 2’s complement format. The sum of X and Y in 2’s complement format using 6 bits is
001000
100111
101001
0001111
001000
100111
101001
0001111
Answer
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Digital Electronics
Which one of the following is correct sequence of the numbers represented in the series(2)3, (10)4, (11)5, (14)6, (22)7,…………….
2, 3, 4, 5, 6, ….
2, 4, 6, 8, 10, …..
2, 4, 6, 10, 12, …
2, 4, 6, 10, 16……..
2, 3, 4, 5, 6, ….
2, 4, 6, 8, 10, …..
2, 4, 6, 10, 12, …
2, 4, 6, 10, 16……..
Answer
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