 ## CuriousTab

Digital Computer Electronics (Computer Science) Question and Answers-Page first

# Digital Computer Electronics problems

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• 1. Conversion of decimal number 1310 to it's octal number equivalent is

• Options
• A. 158
• B. 178
• C. 138
• D. 118
• E. None of the above

•

• 2. With an RS latch a high S and low R sets the output to _____ ; a low S and a high R _____ the output to low.

• Options
• A. No change, set
• B. Race, high
• C. high, reset
• D. set, reset
• E. None of the above

•

• 3. Conversion of decimal number 6110 to it's binary number equivalent is

• Options
• A. 1100112
• B. 110011102
• C. 1111012
• D. 111112
• E. None of the above

•

• 4. De Morgan's second therm says that NAND gate is equivalent to a bubbled _____ gate.

• Options
• A. AND
• B. XAND
• C. XOR
• D. OR
• E. None of the above

•

• 5. How many bits are required to encode all twenty six letters ten symbols, and ten numerals?

• Options
• A. 5
• B. 6
• C. 2
• D. 3
• E. None of the above

•

• 6. An inverter is also called a _____ gate.

• Options
• A. NOT
• B. OR
• C. AND
• D. NAND
• E. None of the above

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• 7. The ASCII

• Options
• A. is a subset of 8-bit EBCDIC
• B. is used only in Western Countries
• C. is version II of the ASC Standard
• D. has 128 characters, including 32 control characters
• E. None of the above

•

• 8. Flip-flop outputs are always

• Options
• A. complimentary
• B. the same
• C. independent of each other
• D. same as inputs
• E. None of the above

•

• 9. Conversion of binary number 10010012 to hexadecimal is

• Options
• A. 4016
• B. 3916
• C. 4916
• D. 4216
• E. None of the above

•

• 10. A p- channel enhancement type MOSFET performs much the same function as a PNP transistor, except that

• Options
• A. it operates much faster
• B. it is considerably larger
• C. it is controlled by voltage rather than by current, so that it requires very little current at the control terminal
• D. it is controlled by current rather than by voltage like a bipolar transistor.
• E. None of the above

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