Question Detail

An exception condition in a computer system caused by an event external to the CPU is known as ?

Halt
Process
Interrupt
None of above

Answer: Option C

Explanation:

In my own experience I found very few questions with answer "None of above", if you do not know the answer then its always better to guess among other (If there is no negative marking) ;)

1. An instruction code must specify the address of the ?

Operand
Opecode
Both of above
None of above

Answer: Option A

2. A microprogram is sequencer perform the operation ?

Read
Write
Read and Write
Read and Execute

Answer: Option D

3. Which interrupt establishes a priority over the various sources to determine which request should be entertained first ?

Polling
Daisy chaining
Priority interrupt
All of above

Answer: Option C

4. Which technique is used that identifies the highest priority resource by means of software ?

Daisy chaining
Polling
Priority
Chaining

Answer: Option B

5. A keyboard has which type of asynchronous transfer mode ?

Serial
Parralel
Optimal
Joint

Answer: Option A

Explanation:

In serial transfer each bit is sent one after the another in a sequence of event and requires just one line.