Microprocessors

Exercise: Microprocessors

A computer program is used to read N and print the sum 1² + 2² + 3² +.....+ N². If N = 10, the print out will show the number

100

385

285

Answer: C

SUM = 1²+ 2² + 3³ + 4⁴ + 5² + 6² + 7⁷ + 8² + 9² + 10² = 385.

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Consider the following program in C



int k;
float a, b, c;
k = a* b* c / 100 + 2.5 / 2 - 0.3 * 9

if a - 5.0, b = 2.0 and c = 3.0 the final result k =

- 1

+ 1.15

- 1.15

Answer: B

k = 0 + 1 - 2 = - 1 because k is an integer.

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A microprocessor is generally

single chip SSI

single chip MSI

single chip LSI

any of the above

Answer: C

It is LSI chip.

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Consider the following statements about Java variables

Java variable must start with a letter or underscore or dollor sign.
Java variable can not start with a digit.
After the first character the variable can have any combination of letters or numbers.
Capitalization of letters must be consistent.

Which of the above are correct?

All

1, 2 and 3 only

2, 3, 4 only

1, 2 and 4 only

Answer: A

All these are correct for Java variables.

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Consider the following program in Basic


5 READ R 
10 D = 2 * R 
20 A = 3.1416 * D * D / 4 
30 PRINT A

Assuming that R = 3.0, the output A =

2.827

28.27

282.7

2827

Answer: B

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