MCQOPTIONS
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MCQOPTIONS
This section includes 90 Mcqs, each offering curated multiple-choice questions to sharpen your Bachelor of Sc in Computer Science FY knowledge and support exam preparation. Choose a topic below to get started.
| 1. |
Which causes the microprocessor to immediately terminate its present activity: |
| A. | reset signal |
| B. | interupt signal |
| C. | both |
| D. | none of these |
| Answer» B. interupt signal | |
| 2. |
A typical personal computer used for business purposes would have… of RAM. |
| A. | 4 kb |
| B. | 16 k |
| C. | 64 k |
| D. | 256 k |
| Answer» E. | |
| 3. |
ALE stand for: |
| A. | address latch enable |
| B. | address light enable |
| C. | address lower enable |
| D. | address last enable |
| Answer» B. address light enable | |
| 4. |
A/n …. Device is any device that provides information, which is sent to the CPU |
| A. | input |
| B. | output |
| C. | cpu |
| D. | memory |
| Answer» B. output | |
| 5. |
A directly accessible appointment calendar is feature of a … resident package |
| A. | cpu |
| B. | memory |
| C. | buffer |
| D. | alu |
| Answer» C. buffer | |
| 6. |
Current SIMMs have either … or … connectors (pins) |
| A. | 9 or 32 |
| B. | 30 or 70 |
| C. | 28 or 72 |
| D. | 30 or 72 |
| Answer» E. | |
| 7. |
DIP stand for: |
| A. | deal inline package |
| B. | dual inline package |
| C. | direct inline package |
| D. | digital inline package |
| Answer» C. direct inline package | |
| 8. |
BP stand for: |
| A. | bit pointer |
| B. | base pointer |
| C. | bus pointer |
| D. | byte pointer |
| Answer» C. bus pointer | |
| 9. |
The size of each segment in 8086 is: |
| A. | 64 kb |
| B. | 24 kb |
| C. | 50 kb |
| D. | 16kb |
| Answer» B. 24 kb | |
| 10. |
Each memory location has: |
| A. | address |
| B. | contents |
| C. | both a and b |
| D. | none of these |
| Answer» D. none of these | |
| 11. |
Which of the following memories needs refresh? |
| A. | sram |
| B. | dram |
| C. | rom |
| D. | all of above |
| Answer» C. rom | |
| 12. |
Microprocessor reference that are available in the cache are called______: |
| A. | cache hits |
| B. | cache line |
| C. | cache memory |
| D. | all of these |
| Answer» B. cache line | |
| 13. |
The four index register can be used for: |
| A. | arithmetic operation |
| B. | multipulation operation |
| C. | subtraction operation |
| D. | all of these |
| Answer» B. multipulation operation | |
| 14. |
A microprocessor retries instructions from : |
| A. | control memory |
| B. | cache memory |
| C. | main memory |
| D. | virtual memory |
| Answer» D. virtual memory | |
| 15. |
BCD stands for: |
| A. | binary coded decimal |
| B. | binary coded decoded |
| C. | both a & b |
| D. | none of these |
| Answer» B. binary coded decoded | |
| 16. |
Current SIMMs have either … or … connectors (pins) |
| A. | 9 or 32 |
| B. | 30 or 70 |
| C. | 28 or 72 |
| D. | 30 or 72 |
| Answer» E. | |
| 17. |
A/n …. Device is any device that provides information, which is sent to the CPU |
| A. | input |
| B. | output |
| C. | cpu |
| D. | memory |
| Answer» B. output | |
| 18. |
The term gigabyte refers to |
| A. | 1024 bytes |
| B. | 1024 kilobytes |
| C. | 1024 megabytes |
| D. | 1024 gigabyte |
| Answer» D. 1024 gigabyte | |
| 19. |
A directly accessible appointment calendar is feature of a … resident package |
| A. | cpu |
| B. | memory |
| C. | buffer |
| D. | alu |
| Answer» C. buffer | |
| 20. |
To locate a data item for storage is |
| A. | field |
| B. | feed |
| C. | database |
| D. | fetch |
| Answer» E. | |
| 21. |
Which of the following terms is the most closely related to main memory? |
| A. | non volatile |
| B. | permanent |
| C. | control unit |
| D. | temporary |
| Answer» E. | |
| 22. |
The first digital computer built with IC chips was known as |
| A. | ibm 7090 |
| B. | apple – 1 |
| C. | ibm system / 360 |
| D. | vax-10 |
| Answer» D. vax-10 | |
| 23. |
The instructions for starting the computer are house on |
| A. | random access memory |
| B. | cd-rom |
| C. | read only memory chip |
| D. | all of above |
| Answer» D. all of above | |
| 24. |
An error in computer data is called |
| A. | chip |
| B. | bug |
| C. | cpu |
| D. | storage device |
| Answer» C. cpu | |
| 25. |
A 32 bit microprocessor has the word length equal to |
| A. | 2 byte |
| B. | 32 byte |
| C. | 4 byte |
| D. | 8 byte |
| Answer» D. 8 byte | |
| 26. |
Which of the following memories has the shortest access times? |
| A. | cache memory |
| B. | magnetic bubble memory |
| C. | magnetic core memory |
| D. | ram |
| Answer» B. magnetic bubble memory | |
| 27. |
Which of the following memories allows simultaneous read and write operations? |
| A. | rom |
| B. | ram |
| C. | eprom |
| D. | none of above |
| Answer» C. eprom | |
| 28. |
The secondary storage devices can only store data but they cannot perform |
| A. | arithmetic operation |
| B. | logic operation |
| C. | fetch operations |
| D. | either of the above |
| Answer» E. | |
| 29. |
What is the responsibility of the logical unit in the CPU of a computer? |
| A. | to produce result |
| B. | to compare numbers |
| C. | to control flow of information |
| D. | to do math’s works |
| Answer» C. to control flow of information | |
| 30. |
Can you tell what passes into and out from the computer via its ports? |
| A. | data |
| B. | bytes |
| C. | graphics |
| D. | pictures |
| Answer» B. bytes | |
| 31. |
Which part of the computer is used for calculating and comparing? |
| A. | disk unit |
| B. | control unit |
| C. | alu |
| D. | modem |
| Answer» D. modem | |
| 32. |
What are the three decisions making operations performed by the ALU of a computer? |
| A. | grater than |
| B. | less than |
| C. | equal to |
| D. | all of the above |
| Answer» E. | |
| 33. |
The word length of a computer is measured in |
| A. | bytes |
| B. | millimeters |
| C. | meters |
| D. | bits |
| Answer» E. | |
| 34. |
A typical personal computer used for business purposes would have… of RAM. |
| A. | 4 kb |
| B. | 16 k |
| C. | 64 k |
| D. | 256 k |
| Answer» E. | |
| 35. |
Which company is the biggest player in the microprocessor industry? |
| A. | motorola |
| B. | ibm |
| C. | intel |
| D. | amd |
| Answer» D. amd | |
| 36. |
Before a disk can be used to store data. It must be……. |
| A. | formatted |
| B. | reformatted |
| C. | addressed |
| D. | none of the above |
| Answer» B. reformatted | |
| 37. |
Which is the type of memory for information that does not change on your computer? |
| A. | ram |
| B. | rom |
| C. | eram |
| D. | rw / ram |
| Answer» C. eram | |
| 38. |
Which of the following items are examples of storage devices? |
| A. | floppy / hard disks |
| B. | cd-roms |
| C. | tape devices |
| D. | all of the above |
| Answer» E. | |
| 39. |
Most important advantage of an IC is its |
| A. | easy replacement in case of circuit failure |
| B. | extremely high reliability |
| C. | reduced cost |
| D. | low powers consumption |
| Answer» C. reduced cost | |
| 40. |
An integrated circuit is |
| A. | a complicated circuit |
| B. | an integrating device |
| C. | much costlier than a single transistor |
| D. | fabricated on a tiny silicon chip |
| Answer» E. | |
| 41. |
The first microprocessor built by the Intel Corporation was called |
| A. | 8008 |
| B. | 8080 |
| C. | 4004 |
| D. | 8800 |
| Answer» D. 8800 | |
| 42. |
One of the main feature that distinguish microprocessors from micro-computers is |
| A. | words are usually larger in microprocessors |
| B. | words are shorter in microprocessors |
| C. | microprocessor does not contain i/o devices |
| D. | exactly the same as the machine cycle time |
| Answer» D. exactly the same as the machine cycle time | |
| 43. |
Registers, which are partially visible to users and used to hold conditional, are known as |
| A. | pc |
| B. | memory address registers |
| C. | general purpose register |
| D. | flags |
| Answer» D. flags | |
| 44. |
Which of the following memory medium is not used as main memory system? |
| A. | magnetic core |
| B. | semiconductor |
| C. | magnetic tape |
| D. | both a and b |
| Answer» D. both a and b | |
| 45. |
The memory which is programmed at the time it is manufactured |
| A. | prom |
| B. | ram |
| C. | prom |
| D. | eprom |
| Answer» B. ram | |
| 46. |
Which of the following is used as a primary storage device? |
| A. | magnetic drum |
| B. | prom |
| C. | floppy disk |
| D. | all of these |
| Answer» C. floppy disk | |
| 47. |
The language that the computer can understand and execute is called |
| A. | machine language |
| B. | application software |
| C. | system program |
| D. | all of the above |
| Answer» B. application software | |
| 48. |
Which of the following are the two main components of the CPU? |
| A. | control unit and registers |
| B. | registers and main memory |
| C. | control unit and alu |
| D. | alu and bus |
| Answer» D. alu and bus | |
| 49. |
INTR: it implies the__________ signal: |
| A. | intrrupt request |
| B. | intrrupt right |
| C. | intrrupt rongh |
| D. | intrrupt reset |
| Answer» B. intrrupt right | |
| 50. |
Which is responsible for all the outside world communication by the microprocessor: |
| A. | biu |
| B. | piu |
| C. | tiu |
| D. | liu |
| Answer» B. piu | |