1answer.
Ask question
Login Signup
Ask question
All categories
  • English
  • Mathematics
  • Social Studies
  • Business
  • History
  • Health
  • Geography
  • Biology
  • Physics
  • Chemistry
  • Computers and Technology
  • Arts
  • World Languages
  • Spanish
  • French
  • German
  • Advanced Placement (AP)
  • SAT
  • Medicine
  • Law
  • Engineering
fgiga [73]
4 years ago
12

A computer has a two-level cache. Suppose that 60% of the memory references hit on the first level cache, 35% hit on the second

level, and 5% miss. The access times are 5 nsec, 15 nsec, and 60 nsec, respectively, where the times for the level 2 cache and memory start counting at the moment it is known that they are needed (e.g., a level 2 cache access does not even start until the level 1 cache miss occurs). What is the average access time?
Engineering
1 answer:
Andreyy894 years ago
4 0

Answer:

t=14ns

Explanation:

We make the relation between the specific access time and the memory percentage in each level, so

60\% \Rightarrow 60/100 = 0.60\\35\% \Rightarrow 35/100 = 0.35\\05\% \Rightarrow 05/100 = 0.05

t= 0.6(5) + 0.35(5+15) + 0.05(5+15+60)\\t= 0.6(5) + 0.35(20) + 0.05(80)\\t= 3 + 7 + 4\\t= 14 ns

Average Access Time is 14 nsec.

You might be interested in
Rear axles are usually lubricated by the same gear oil that lubricates the differential. True or false
KIM [24]

Answer:

true

Explanation:

8 0
2 years ago
Write a program that asks the user to input a vector of integers of arbitrary length. Then, using a for-end loop the program exa
ELEN [110]

Answer:

%Program prompts user to input vector

v = input('Enter the input vector: ');

%Program shows the value that user entered

fprintf('The input vector:\n ')

disp(v)

%Loop for checking all array elements

for i = 1 : length(v)

   %check if the element is a positive number

   if v(i) > 0

       %double the element

       v(i) = v(i) * 2;

   %else the element is negative number.

   else

       %triple the element

       v(i) = v(i) * 3;

   end

end

%display the modified vector

fprintf('The modified vector:\n ')

disp(v)

4 0
4 years ago
Consider a standard room thermostat. Determine the sensor, transducer, output, and control stages for this measurement system.
Anni [7]

Answer:

Sensor/transducer: bimetallic thermometer

Output: displacement of thermometer tip

Control Tstages: mercury contact switch (open:furnace off; closed:furnace on

Explanation:

for a standard room thermostat : This is the device that sets/determines the temperature of an enclosure.

Sensor/transducer: bimetallic thermometer: Bimetalic thermometer are used for measuring the temperature of the ambient air . bimetallic thermometer actually contains two metals. they undergo linear expansivity as the temperature of the room changes.in other words, they experience contraction and expansion with increase or decrease in temperature.The sensor is basically coupled with a transducer which turns the measured variable(Temperature)  into something else, such as a movement on a dial or an electrical signal

Output: displacement of thermometer tip

Controller: mercury contact switch (open:furnace off; closed:furnace on)

once the contact switch is open the furnace can go off. when the contact switch is closed, the furnace will come up.

3 0
3 years ago
WHAT IS THIS PLSSSSSS HELP
alekssr [168]

Answer:

It looks like... A machine that reads electric pulse and surge... Not sure though.

Explanation:

8 0
3 years ago
A pin-supported structure has unrestrained rotations at the support locations.a) True b) False
antoniya [11.8K]

Answer:

a)True

Explanation:

Yes it is true a pin support can not resist the rotation motion . It can resist only lateral or we can say that only linear motion of structure and can not resit angular moment of motion about hinge or pin joint.On the other hand a fixed support can resist linear as well rotation motion of structure.

6 0
3 years ago
Other questions:
  • Examining the qualifications of the<br> is one criterion for evaluating information sources.
    9·1 answer
  • Natural-draft furnaces are no longer available for new installations because they are _____.
    5·1 answer
  • The international standard letter/number mapping for telephones is: Write a function that returns a number, given an uppercase l
    6·1 answer
  • 4. (3 pts) Sketch cylinder/cylinder head configurations to show the differences between PFI and GDI gasoline injection systems.
    5·2 answers
  • Please help me in this assignment.
    13·1 answer
  • A.
    7·1 answer
  • Hot engine oil with heat capacity rate of 4440 w/k (product of mass flow rate and specific heat) and an inlet temperature of 150
    13·1 answer
  • In a creep test, increasing the temperature will (choose the best answer) A. increase the instantaneous initial deformation B. i
    5·1 answer
  • How to improve the speed of train passing through turnout​
    9·1 answer
  • Pls help me Extra points
    12·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!