C952 - Computer Architecture fully solved
What access does a register file operate under to properly function?
read and write access
what is the binary representation of instructions?
machine language
Which feature of the IBM 360/91 was incorporated into the majority of
microprocessors developed in the 21st century?
Algorithm innovations allowed the improved parallel execution of instructions.
Which key design element changed in 2005 to drive continued improvements in
computing capability?
Multiprocessor architecture
Which term refers to the same instruction applied to multiple data streams?
SIMD
What makes vector code better than conventional code?
the frequency of pipeline hazards is lower
Which two elements are required to implement R format arithmetic logic unit
operations?
ALU and register file
Which component of a computer moderates the actions of other components?
control
Overflow occurs when:
-you add two integer values with the same left most bit and end up with a different left
most bit
-when you subtract a value with a different leading bit than the other value, and the
result is the first value's sign
What is the approximate range of an unsigned 64 bit integer?
0 to 18,446,744,073,709,551,615
DRAM
memory built as an integrated circuit with 50 nanosecond access times
SRAM
faster than dram and less dense than dram, it is an integrated circuit
cache memory
A small, fast memory that acts as a buffer for a slower, larger memory.
How is the integer 255 represented in memory?
0000 0000 0000 0000 0000 0000 1111 1111
What does extending to 16 bits yield given -5 in 8-bit 2's complement 11111011?
11111111 11111011
How many minutes does it take to wash, dry, and fold four loads of laundry using
a pipelining approach, given the following information?
One washer takes 30 minutes
One dryer takes 40 minutes
One folder takes 20 minutes
210 minutes.
, Whole duration of one task is 90 minutes, longest part of task is 40 minutes (x 3 for
other loads) + 90 = 210
The manufacturing process for producing a widget has five steps and each step
in the process takes one day.
What is the average number of days needed to manufacture each widget using a
pipelined process to produce 10 widgets?
1.4
Which locality principle states that if a data location is referenced then it will tend
to be referenced again soon?
temporal
What does each bank of modern DRAMS consist of?
rows
What is meant by pipelining in computer architecture?
It employs an implementation technique where multiple instructions are overlapped in
execution.
What is superscalar as it relates to parallelization?
A technique that enables the processor to execute more than one instruction per clock
cycle by selecting them during execution
The value of b is stored in r1, c is stored in r2, and a is stored in r0.
Which set of ARM instructions will accomplish a = b & c?
AND r0, r1, r2
Registers X1, X2, X3 have corresponding data stored in each location:
X1: A
X2: B
X3: C
Which set of ARM instructions will accomplish A=B+C?
ADD X1, X2, X3
The variables f and g are assigned to the registers X3 and X4, respectively in
these ARM instructions.
Loop: SUBS XZR, X3, X4
B.GE Exit
LSL X3, X3, 1
B Loop
Exit:
What are the corresponding statements in the C language?
while (f < g) { f = f << 1; }
Given this set of ARM instructions, where b is at offset 0, e is at offset 8, and a is
at offset 24:
LDUR X1, [X0,#0]
What access does a register file operate under to properly function?
read and write access
what is the binary representation of instructions?
machine language
Which feature of the IBM 360/91 was incorporated into the majority of
microprocessors developed in the 21st century?
Algorithm innovations allowed the improved parallel execution of instructions.
Which key design element changed in 2005 to drive continued improvements in
computing capability?
Multiprocessor architecture
Which term refers to the same instruction applied to multiple data streams?
SIMD
What makes vector code better than conventional code?
the frequency of pipeline hazards is lower
Which two elements are required to implement R format arithmetic logic unit
operations?
ALU and register file
Which component of a computer moderates the actions of other components?
control
Overflow occurs when:
-you add two integer values with the same left most bit and end up with a different left
most bit
-when you subtract a value with a different leading bit than the other value, and the
result is the first value's sign
What is the approximate range of an unsigned 64 bit integer?
0 to 18,446,744,073,709,551,615
DRAM
memory built as an integrated circuit with 50 nanosecond access times
SRAM
faster than dram and less dense than dram, it is an integrated circuit
cache memory
A small, fast memory that acts as a buffer for a slower, larger memory.
How is the integer 255 represented in memory?
0000 0000 0000 0000 0000 0000 1111 1111
What does extending to 16 bits yield given -5 in 8-bit 2's complement 11111011?
11111111 11111011
How many minutes does it take to wash, dry, and fold four loads of laundry using
a pipelining approach, given the following information?
One washer takes 30 minutes
One dryer takes 40 minutes
One folder takes 20 minutes
210 minutes.
, Whole duration of one task is 90 minutes, longest part of task is 40 minutes (x 3 for
other loads) + 90 = 210
The manufacturing process for producing a widget has five steps and each step
in the process takes one day.
What is the average number of days needed to manufacture each widget using a
pipelined process to produce 10 widgets?
1.4
Which locality principle states that if a data location is referenced then it will tend
to be referenced again soon?
temporal
What does each bank of modern DRAMS consist of?
rows
What is meant by pipelining in computer architecture?
It employs an implementation technique where multiple instructions are overlapped in
execution.
What is superscalar as it relates to parallelization?
A technique that enables the processor to execute more than one instruction per clock
cycle by selecting them during execution
The value of b is stored in r1, c is stored in r2, and a is stored in r0.
Which set of ARM instructions will accomplish a = b & c?
AND r0, r1, r2
Registers X1, X2, X3 have corresponding data stored in each location:
X1: A
X2: B
X3: C
Which set of ARM instructions will accomplish A=B+C?
ADD X1, X2, X3
The variables f and g are assigned to the registers X3 and X4, respectively in
these ARM instructions.
Loop: SUBS XZR, X3, X4
B.GE Exit
LSL X3, X3, 1
B Loop
Exit:
What are the corresponding statements in the C language?
while (f < g) { f = f << 1; }
Given this set of ARM instructions, where b is at offset 0, e is at offset 8, and a is
at offset 24:
LDUR X1, [X0,#0]
