Computer Architecture Quiz

The amount of ROM needed to implement a3-bit multiplieris

• 346 Bits

• 12 Bits

• 10 Bits

• 384 Bits

The decimal value 2.02 in IEEE single precision floating point representation has

• fraction bits of 00000… 00000000000… 000000 and exponentvalue of 0;

• fraction bits of 00000… 00000000000… 000000 and exponent value of 1;

• fraction bits of 10000… 00000010000… 000000 and exponent value of 1;

• no exact representation;

Register renaming is done in pipelined processors

• asan alternative to registering allocation at compile time

• for efficient access to function parameters and local variables

• to handle certain kinds of hazards

• as part of address translation

Increasing the RAM of a computer typically improves performance because

• Virtual memory increases

• Larger RAMs are faster

• Fewer page faults occur

• Fewer segmentation faults occur

In 2′ s complement addition, the overflow

• is flagged whenever there is carry from signbit addition

• cannot occur when a positive value is added to a negative value

• is flagged when the carries from the sign bit and the previous bit match

• none of the above

The number of bytes required to represent the decimal number1856357 in packed BCD(Binary Coded Decimal) form is

• 4 Bytes

• 2 Bytes

• 1 Bytes

• None of the mentioned

X=01110andY=11001aretwo 5-bit binary numbers represented in two' s complement format. The sum of X and Y represented in two' s complement format using 6 bits is:

• . 010101

• 000000

• 11111

• 000111

Decimal 43 in Hexadecimal and BCD number system is respectively

• 0100 0011

• 0100 0000

• 0100 1111

• 0000 0000

Which of the following addressing modes is not supported by 8085?

• Immediate

• Direct

• Register Indirect

• Register-to-register

Which is the most appropriate match for the items in the first column with the items in the second column

• P-3 , Q.1 , R-2

• P-2, Q.3 , R-1

• P-3 , Q.2 , R-1

• P-1 , Q.3, R-2