21. |
In unsigned number addition, the status of which bit is important?
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Answer:
Option (b) |
22. |
Which instructions have no effect on the flags of PSW?
|
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Answer:
Option (d) |
23. |
8051 has on cheap ROM size of
|
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Answer:
Option (a) |
24. |
8051 has RAM size of
|
||||||||
Answer:
Option (c) |
25. |
8051 has ........... no. of timers
|
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Answer:
Option (b) |
26. |
8051 has ..................no. of I/O pins
|
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Answer:
Option (c) |
27. |
8051 has .......... no of serial ports
|
||||||||
Answer:
Option (a) |
28. |
8051 has .............no of interupts
|
||||||||
Answer:
Option (d) |
29. |
A micro controller has which of the following devices on cheap
|
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Answer:
Option (d) |
30. |
A general purpose microprocessor normally needs which of the following devices to be attached to it
|
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Answer:
Option (d) |