a dma module is transferring characters to main memory from an external device transmitting at 9600 bits per second (bps). the processor can fetch instructions at the rate of 1 million instructions per second. by how much will the processor be slowed down due to the dma activity?
Answers
The DMA module is transferring characters to main memory from an external device transmitting at 9600 bits per second (bps). The processor can fetch instructions at the rate of 1 million instructions per second. This problem requires us to determine how much the processor will be slowed down due to the DMA activity.
What is DMA?DMA is an abbreviation for Direct Memory Access. DMA refers to a feature of computer systems that allows hardware subsystems to access main system memory (Random Access Memory), which is directly connected to the CPU. DMA channels are utilized to permit devices to read and write memory without having to engage the CPU for each access.
What is the solution?The formula for calculating processor speed loss due to DMA activity is as follows:
Processor Speed Loss = (DMA Transfer Rate / Processor Instruction Rate) * 100%
To compute the value of Processor Speed Loss, we must first determine the DMA Transfer Rate. Given that the external device is transmitting at a rate of 9600 bits per second (bps), we must convert it to bytes per second (Bps).
9600 bits per second = 1200 bytes per second (1 byte = 8 bits)Now we have everything we need to compute Processor Speed Loss:
Processor Speed Loss = (1200 / 1,000,000) * 100%Processor Speed Loss = 0.12%Therefore, the processor will be slowed down by 0.12% due to DMA activity.
Learn more about DMA: https://brainly.com/question/14282988
#SPJ11
Related Questions
Basic python coding, What is the output of this program? Assume the user enters 2, 5, and 10.
numA = 0
for count in range(3):
answer = input ("Enter a number: ")
fltAnswer = float(answer)
numA = numA + fltAnswer
print (numA)
Thanks in advance!
:L
Answers
Answer:
17.0
Explanation:
after first loop numA = 0.0 + 2 = 2.0
after second loop numA = 2.0 + 5 = 7.0
after third loop numA = 7 + 10 = 17.0
a ________can retrieve data from multiple fields in different tables in the data model
Answers
In a database, tables are used to organize and store data. Often, related data is distributed across multiple tables to ensure data normalization and avoid duplication.
However, there are scenarios where you need to retrieve data that spans across multiple fields in different tables. This is where a join operation becomes crucial. A join operation combines rows from different tables based on a common field or column. The join condition specifies how the tables should be connected. The most common type of join is the inner join, which returns only the matching records from both tables. Other types include the left join, which returns all records from the left table and the matching records from the right table, and the right join, which does the opposite.
Joins can involve multiple tables, allowing you to retrieve data from various fields across those tables. The result is a consolidated dataset that combines information from different sources. This is particularly useful when you need to analyze relationships, generate reports, or extract specific insights that require data from multiple tables. To perform a join, you typically specify the tables involved, the join condition, and the desired fields to retrieve. The join condition defines how the tables are related, usually by matching values in a common column or key.
Learn more about data retrieval across multiple tables here:
https://brainly.com/question/30169182
#SPJ11
The acquisition of a new machine with a purchase of 109,000, transportation cost 12,000,instillation cost 5,000 and special acquisition fees of 6000 could be journalized with a debit to the asset account for
Answers
$132,000
-------------------------------------------------------------------------------------------------------------
hope this helps!
What is the key or combination of keys used to enter the firmware setup utility program for my computer
Answers
The key or combination of keys used to enter the firmware setup utility program for a computer varies depending on the manufacturer and model of the computer. However, the most common keys are F2, Del, F1, F10, or Esc.
The key to press is usually indicated on the screen during the startup process, and it may be necessary to press it repeatedly until the firmware setup utility program appears.Some manufacturers also include a special button on the computer that can be used to access the firmware setup utility program. For example, some Lenovo laptops have a "Novo" button that can be used to enter the firmware setup utility program or the boot menu without going through the usual startup process.
Once you have accessed the firmware setup utility program, you can configure various settings related to your computer's hardware, such as the boot order, clock speed, and voltage settings. It is important to be careful when making changes in the firmware setup utility program, as incorrect settings can cause your computer to malfunction or even become unusable. Always make a note of the original settings before making any changes, and consult the manufacturer's documentation if you are unsure about any of the settings.
Learn more about firmware here,
https://brainly.com/question/18000907
#SPJ11
when an overridden method is called from within a subclass, it will always refer to the version of that method defined by the (a) super class (b) subclass (c) compiler will choose randomly (d) interpreter will choose randomly (e) none of the abvove.
Answers
Option b is correct. When an overridden method is called from within a subclass, it will always refer to the version of that method defined by the subclass.
Subclasses are classes that can be created by adding new functionality to a parent class, such as new object variables or new methods. In terms of automata theory, a subclass expands the state transition table with new rows and states. However, by overriding (changing) existing functionality, the majority of OO programming languages also enable us to derive subclasses from parent classes. When implementing a class, all that is required to be specified is the new or updated functionality thanks to inheritance mechanisms between parent class and subclass.
Lines connected through a circle connect the subclasses HourlyEmployee and SalaryEmployee to the superclass Employee. The circled letter "d" stands for disjointness, which demands that the specification's subclasses be distinct. As a result, an entity can belong to only one of the specification's subclasses. An individual employee can only be paid either hourly wages or a salary; they cannot be paid both. The open sides of the inheritance (arch) symbols face the superclass.
To know more about subclass click on the link:
https://brainly.com/question/13790787
#SPJ4
Consider the following code.
public void printNumbers(int x, int y) {
if (x < 5) {
System.out.println("x: " + x);
}
if (y > 5) {
System.out.println("y: " + y);
}
int a = (int)(Math.random() * 10);
int b = (int)(Math.random() * 10);
if (x != y) printNumbers(a, b);
}
Which of the following conditions will cause recursion to stop with certainty?
A. x < 5
B. x < 5 or y > 5
C. x != y
D. x == y
Consider the following code.
public static int recur3(int n) {
if (n == 0) return 0;
if (n == 1) return 1;
if (n == 2) return 2;
return recur3(n - 1) + recur3(n - 2) + recur3(n - 3);
}
What value would be returned if this method were called and passed a value of 5?
A. 3
B. 9
C. 11
D. 16
Which of the following methods correctly calculates the value of a number x raised to the power of n using recursion?
A.
public static int pow(int x, int n) {
if (x == 0) return 1;
return x * pow(x, n);
}
B.
public static int pow(int x, int n) {
if (x == 0) return 1;
return x * pow(x, n - 1);
}
C.
public static int pow(int x, int n) {
if (n == 0) return 1;
return x * pow(x, n);
}
D.
public static int pow(int x, int n) {
if (n == 0) return 1;
return x * pow(x, n - 1);
}
Which of the following methods correctly calculates and returns the sum of all the digits in an integer using recursion?
A.
public int addDigits(int a) {
if (a == 0) return 0;
return a % 10 + addDigits(a / 10);
}
B.
public int addDigits(int a) {
if (a == 0) return 0;
return a / 10 + addDigits(a % 10);
}
C.
public int addDigits(int a) {
return a % 10 + addDigits(a / 10);
}
D.
public int addDigits(int a) {
return a / 10 + addDigits(a % 10);}
The intent of the following method is to find and return the index of the first ‘x’ character in a string. If this character is not found, -1 is returned.
public int findX(String s) {
return findX(s, 0);
}
Which of the following methods would make the best recursive helper method for this task?
A.
private int findX(String s) {
if (index >= s.length()) return -1;
else if (s.charAt(index) == 'x') return index;
else return findX(s);
}
B.
private int findX(String s, int index) {
if (index >= s.length()) return -1;
else return s.charAt(index);
}
C.
private int findX(String s, int index) {
if (index >= s.length()) return -1;
else if (s.charAt(index) == 'x') return index;
else return findX(s, index);
}
D.
private int findX(String s, int index) {
if (index >= s.length()) return -1;
else if (s.charAt(index) == 'x') return index;
else return findX(s, index + 1);
}
Answers
Is this for a grade?
Which action can reduce the risk of ESD damage when computer equipment is being worked on?
O working on a grounded antistatic mat
O keeping the computer plugged into a surge protector
O lowering the humidity level in the work area
O moving cordless phones away from the work area
Answers
Working on a grounded antistatic mat can reduce the risk of ESD (electrostatic discharge) damage when computer equipment is being worked on.
ESD stands for Electrostatic Discharge, which refers to the sudden flow of electricity between two objects with different electrical charges. ESD can occur when two objects with different electrical potentials come into contact, or when an object with a high static charge is brought close to a conductor. ESD can cause damage to electronic devices and components, as the sudden flow of electricity can disrupt or destroy their normal operation.
To prevent ESD, it is important to take appropriate precautions such as:
Using ESD-safe equipment and materials.Properly grounding yourself and electronic devices.Avoiding activities that can generate static electricity.Wearing ESD-safe clothing and shoes.Using ESD-safe workstations and storage containers.Maintain a safe level of humidity.ESD can also cause a failure in electronic devices and components, which can be dangerous and costly.
Learn more about ESD here:
https://brainly.com/question/10800815
#SPJ4
Why might you want to collect multiple items in the Office Clipboard?
Answers
Answer:
So you have more items to work with.
Explanation:
Which of the following forms of cryptography is best implemented in hardware?
Asymmetric
Symmetric stream
Symmetric block
Public key
Answers
The best form of cryptography to be implemented in hardware is Symmetric block cryptography.
So, the correct answer is C.
This is because symmetric block algorithms, like AES, offer fast and efficient encryption and decryption, making them well-suited for hardware implementation.
In comparison, asymmetric algorithms, such as public key cryptography, require more processing power due to their complex key management systems.
Additionally, symmetric stream ciphers may not be ideal for hardware as they encrypt data bit-by-bit, which could lead to slower performance. Therefore, symmetric block cryptography is the optimal choice for hardware implementation due to its balance of speed, efficiency, and security.
Hence the answer of the question is C.
Learn more about cryptography at
https://brainly.com/question/88001
#SPJ11
how are web design & web development different from each other?
Answers
Answer:
Developers are people who build a website's core structure using coding languages, while designers are more visually creative and user-focused. Developers use their programming knowledge to breathe life into the designer’s creative vision.
You could think of developers as construction workers, and web designers as architects – both necessary, but different, skill sets.
I hope this helped :D
Explanation:
Which of the following statements is true about a class' member function definition?
a) A function definition provides a class name, return type, arguments, and the function statements.
b) A function definition provides the function name, return type,and arguments.
c) A programmer first defines a function and then declares the member functions.
d) A modulus operator is used preceding the functions name in a function definition.
Answers
b) A function definition provides the function name, return type,and arguments.
A function definition in a class typically includes the function name, return type, and arguments. However, it does not necessarily provide the class name or the function statements. Therefore, statement (b) is the correct option. In a class, the programmer usually first declares the member functions and then defines them separately. The function definition contains the implementation of the function, including the statements that define its behavior. It does not involve a modulus operator preceding the function name.
Learn more about function definition here:
https://brainly.com/question/30610454
#SPJ11
write a query to retrieve the empfname and emplname in a single column as ""fullname"". the first name and the last name must be separated with space.
Answers
The following is the query to retrieve the first name and the last name in a single column as the full name from the table in database named " namesInfo".
SELECT CONCAT(empfname, ' ', emplname) AS fullname FROM namesInfo;
CONTACT is a function in a database that accepts multiple columns or strings as arguments and concatenates them to create a single column or string value. A comma is placed between the arguments.
In the above query, the function CONTACT is used to display the first name and the last name as a single full name. In order to separate the first name and the last name in the resulting full name column, a space character, in single quotes (' '), is used between the arguments of the CONTACT function in the query.
You can learn more about SQL query at
https://brainly.com/question/25694408
#SPJ4
features and benefits of an ipad
Answers
An iPad is like a phone but bigger. I mean, you can carry it anywhere, and its keyboard is better than iPhone's small keyboard. Apps with small controls can now be more playable. Even though a pc has better quality and more controls in my opinion Ipad is better because you can take them anywhere unlike your pc which is stuck in one place.
A rental car company charges $35.13 per day to rent a car and $0.10 for every mile driven. Qasim wants to rent a car, knowing that: He plans to drive 475 miles. He has at most $160 to spend. What is the maximum number of days that Qasim can rent the car while staying within his budget?
Answers
The maximum number of days Qasim can rent the car is 3 days.
How to find the the maximum number of days that Qasim can rent the car while staying within his budget?Since rental car company charges $35.13 per day to rent a car and $0.10 for every mile driven and Qasim wants to rent a car, knowing that: He plans to drive 475 miles. He has at most $160 to spend.
Let d be the amount of days it will cost to rent the car.
Now since it costs $35.13 per day to rent the car, we have that the cost per day is $35.13 × d
Also, we need to find the amount it costs to drive 475 miles.
Since it costs $0.10 per mile and Qasim drives 475 miles, the total cost for the mile is $ 0.10 per mile × 475 miles = $47.5
So, the total cost of the rental is T = 35.13d + 47.5
Now, since we are to stay within Qasim's budget of $160, we have that
T = 35.13d + 47.5 = 160
So, we solve for d in the equation.
35.13d + 47.5 = 160
35.13d = 160 - 47.5
35.13d = 112.5
d = 112.5/35.13
d = 3.2 days
d ≅ 3 days
So, the maximum number of days Qasim can rent the car is 3 days.
Learn more about number of days here:
https://brainly.com/question/1575227
#SPJ1
What is a conditional statement? What is another name for conditional statement? Give 2 examples of conditional statements?
Please give a correct answer. Will give brainliest, 5 star and 100 points for the correct answer else will take it back.
Answers
Answer:
A conditional statement instructs a system to do action based on whether a condition is true or false. This is frequently expressed as an if-then or if-then-else expression. A conditional statement is applied to predicate choices on circumstances. When there is no condition around the instructions, they run sequentially. If you add a condition to a block of statements, the execution flow may alter depend on the outcome of the condition. It is also known as a one-way selection statement because we utilize the if condition, provide the argument, and if the argument is passed, the relevant function is performed; else, nothing happens.
Examples of conditional statements:
1) int time = 20;
if (time < 16) {
System.out.println("Have a good day.");
} else {
System.out.println(" Enjoy your evening.");
}
2) using namespace Conditional;
static void Main(string[] args)
{
// This method determines what a user should do for the day based on the weather condition
public void Weather(string myWeather)
{
// 1st condition
if (myWeather == "Sun")
{
// Decision
Console.WriteLine("Go to the beach");
}
// 2nd condition
else if (myWeather == "Rain")
{
Console.WriteLine("Go to the library")
}
// 3rd condition
else if (myWeather == "Cloudy")
{
Console.WriteLine("Go to the park")
}
else
{
//otherwise
Console.WriteLine("Rest at home")
}
}
}
Please help for MAXIMUM POINTS!
Jarod’s boss sends him an e-mail about a task that she wants him to complete. In the email she asks that he collect the clothing size information of all 900 employees in his company and then place a branded clothing order with their supplier. After sending the email, his boss schedules a meeting with Jarod for the next day so that he can ask her any questions that he may have. What are four things that Jarod can do to ensure that he collects all the information he needs to do the task well?
Answers
Which object is a storage container that contains data in rows and columns and is the primary element of Access databases? procedures queries forms tables
Answers
Answer:
tables
Explanation:
For accessing the database there are four objects namely tables, queries, forms, and reports.
As the name suggests, the table is treated as an object in which the data is stored in a row and column format plus is the main element for accessing the database
Therefore in the given case, the last option is correct
Answer:
D. tables
Explanation:
took the test, theyre right too
PLEASE HELP!! Which of the following computing devices would best address the needs for a CYBER SECURITY ANALYST?
Answers
Answer:high end laptop.
Explanation:
What happened when the disk you inserted is not readable by this computer?
Answers
When the disk you have inserted is not readable by the computer, it means that the computer is unable to access or retrieve any data from the disk.
This can happen due to several reasons. One possibility is that the disk is corrupted or damaged. In such cases, the computer may display an error message stating that the disk is unreadable or cannot be recognized. Another possibility is that the disk format is not supported by the computer's operating system. Different operating systems have different file systems, and if the disk is formatted in a file system that is not compatible with the computer, it won't be readable. Additionally, if the disk is encrypted or password-protected, the computer won't be able to read it without the correct credentials. In conclusion, when the disk you inserted is not readable by the computer, it could be due to disk corruption, incompatible file system, or encryption/ password protection.
To know more about Operating system , Visit:
https://brainly.com/question/29532405
#SPJ11
Program and data of secondary storage are also transferred in the memory unit before being used by the computer. is it true or false
Answers
Answer:
it's true. that's the way it works
This version of the web evolved to support more dynamic content creation and social interaction.
Answers
Websites that emphasize user-generated content, usability, participatory culture, and interoperability for end users are known as "Web 2.0" sites.
A Web 2.0 enables users to communicate and work together as co-creators of user-generated content in a virtual community through social media discussion. This contrasts with the original generation of Web 1.0-era websites when users were only able to passively consume material. Social networking and social media sites, blogs, wikis, folksonomies, video and image sharing websites, hosted services, web apps, platforms for collaborative consumption, and mashup applications are a few examples of Web 2.0 elements.
Learn more about web 2.0 https://brainly.com/question/12105870?
#SPJ4
Which of the following best describes today’s average gamer?
The average age is eighteen, and many more males play than females.
The average age is thirty, and only slightly more males play than females.
The average age is thirty, and many more males play than females.
The average age is eighteen, and only slightly more males play than females.
Answers
Exception in invoking authentication handler User password expired. The Appliance was deployed more than 90 days ago with default settings.
Answers
Answer:
This error message indicates that the user's password has expired, and it needs to be reset to access the appliance. It also suggests that the appliance was deployed more than 90 days ago with default settings, which may have caused the password expiration.
To resolve this issue, follow these steps:
Log in to the appliance using the administrator account or an account with administrative privileges.
Navigate to the user management section and find the user whose password has expired.
Reset the user's password to a new one that meets the password complexity requirements.
Ask the user to log in with the new password and change it to a more secure one.
If the appliance was deployed with default settings, review and update the password expiration policy to avoid similar issues in the future.
It's important to regularly review and update security settings on your appliance to prevent security vulnerabilities and ensure the safety of your data
How do I convince my mom to buy a gaming computer for me? She says we already have 3 other computers/laptops in the house to use but they are all owned by someone else and I want my own.
Answers
Answer: ??
Explanation: explain to her that you don't have your own. keep asking and convince her you're doing good in school, (if u are) and that you listen and you should be responsible to have your own
Select the correct answer.Priyanka wants to send some important files to her head office. Which protocol should she use to transfer these files securely?A.HTTPB.FTPSC.FTPD.DNS
Answers
Answer: FTP
Explanation: FTP stands for file transfer protocol.
Random.choice will choose a number between 1 and 100. True False
Answers
Answer: False.
Explanation: Random.choice can choose between any 2 numbers.
Answer:
The person above me is right
Explanation:
Edge 2022
When first designing an app, all of the folldwing are important EXCEPT
A. debugging
B. determining how a user would interact with the app.
C. determining the purpose of the app
D. identifying the target audience
Answers
Answer:
B
Explanation:
Determining how the user could interact with the app varies person to person, the others are essential to creating apps though.
State one criteria that makes a piece of malware a virus.
Answers
Answer: Self replication
Explanation: Malware is a catch-all term for any type of malicious software, regardless of how it works, its intent, or how it's distributed. A virus is a specific type of malware that self-replicates by inserting its code into other programs.
4. Write a MATLAB code implementing the Inverse Matrix Method. Check your answer with ""Left Division"". Attach after this sheet: (4 points) (both cases where Vs = 5and 7 V) a) m-file b) output NOTE: R1 = R2 = 10092 and R3 = R4 = 20092.
Answers
The Inverse Matrix Method is a technique used in solving systems of linear equations. The method involves finding the inverse of the coefficient matrix and multiplying it by the constant vector to obtain the solution vector.
Here is the MATLAB code implementing the Inverse Matrix Method:
% Define the resistance values
\(R_1 = 10092;\\R_2 = 10092;\\R_3 = 10092;\\R_4 = 10092;\)
% Define the voltage source values
\(Vs_1 = 5;\\Vs_2 = 7;\)
% Define the matrix and vector equations
\(A = [1/R_1+1/R_2, -1/R_2; -1/R_2, 1/R_2+1/R_3+1/R_4];\\V = [Vs_1;/R_1; Vs_2/R_3];\)
% Solve for the current values using the inverse matrix method
\(I = A^{-1} * V;\)
% Display the current values
\(disp(I)\)
% Check the current values using the left division
I_left = \([1/R_1 + 1/R_2, -1/R_2; -1/R_2, 1/R_2 + 1/R_3 + 1/R_4] [Vs_1/R_1; Vs_2/R_3];\)
% Display the left division results
disp(I_left);
The resistance and voltage source values are defined first in this code. We then use these numbers to define the matrix and vector equations. The A matrix represents the current equation coefficients, while the V vector represents the voltage values. We then solve for the current values using the inverse matrix approach \((A^{-1} * V)\).
Finally, we check the current values using left division ([A\b] in MATLAB), which should give us the same results.
Learn more from MATLAB:
https://brainly.com/question/15076658
#SPJ11
What are the three phases of an iterative development process?
A.
design, analyze, generate
B.
plan, analyze, evaluate
C.
analyze, implement, delivery
D.
design, prototype, evaluate
Answers
Answer: D. - design, prototype, evaluate
Explanation: Took a Edmentum/Plato Quiz
Answer:
D - Design, Prototype, Evaluate
Explanation:
PLATO