What is abstraction and how does it relate to how computers store information?

Answers

Answer 1

Answer:

Definition - What does Abstraction mean?

Abstraction is a fundamental principle in some types of computer science. It is a key design aspect of object-oriented programming languages and application programming interfaces. It's also one of the least understood ideas in programming, partially for semantic reasons.

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Abstraction is commonly defined as the extraction of relevant information from a larger data set, where utilizing abstraction allows engineers and others to simplify a codebase.

Techopedia explains Abstraction

The reason this is confusing to many people is that abstraction doesn't “sound like” what it is, semantically. It sounds like making something more vague, because that's how we use it in general language.

However, in computer science, abstraction typically means simplification and separating the signal from the noise in order to make programming more efficient and effective.

Explanation:

Answer 2
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Related Questions

Which position(s) in the Load Parameter contains the information on what messages are to be displayed during IPL time

Answers

Answer:

the 27th axis of y

Explanation:

The following details are contained in the eight-character LOAD parameter: The I/O definition file (IODF) VSAM data set's hexadecimal device number is specified by the first four characters (characters 1 through 4 of the LOAD parameter).

What Load Parameter contains the information?

IPL message suppression, IPL prompting, IPL prompting for the system starting mode, and the debug mode for installation from disk can all be controlled using the IPL load option.

Not every disk connected to a CPU has loadable software on it. A disk that meets these requirements is commonly known as a "IPLable" disk, and the SYSRES volume is one such volume. A bootstrap module can be found on IPLable drives at cylinder 0 track 0.

Therefore, A notice or prompt should be displayed at IPL time, according to the seventh position.

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What TSO command recovers waste space that was formerly occupied by deleted or updated members and is now available for use again

Answers

Answer:

Z-command

Explanation:

In IBM cloud pack, this TSO command that performs the functions of recovery and reuse as we are given in the question above is called Z-command.

If we assume the modern view of existential import, why is the following syllogism invalid? No computer is made of clay. All computers are electronic devices. Some electronic devices are not made of clay.

Answers

Answer:

because the conclusion is not in agreement with the two premises.

Explanation:

Remember, the term syllogism refers to the form of reasoning that draws its conclusion based on the stated premises. In other words, a conclusion is reached if it satisfies all or part of the premises.

In this case, the statement "No computer is made of clay" and  "All computers are electronic devices" should be inferred to mean, No electronic devices are made of clay" not "Some electronic devices are not made of clay," since the two premises neither suggest that electronic devices are made from clay.

The reason why the given syllogism is invalid is because; The conclusion does not agree with the premise.

We are given two statements as premises;

1) No computer is made of clay

2) All computers are electronic devices

The third statement is the conclusion which states that;

3) Some electronic devices are not made of clay.

Now in syllogism, the conclusion must be in agreement with the two premises.

In this question, the conclusion doesn't agree with the premises because the conclusion says "some electronic devices are not made of clay". Whereas the premise says that no computer which is an electronic device is made of clay.

Since none of the premise suggests that any electronic device is made of clay, then the syllogism is invalid.

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Define the summary function, which takes as arguments a database (dict) and a dict of current stock prices. It returns a dictionary (dict or defaultdict) whose keys are client names (str) whose associated values are 2-tuples: the first index is a dictionary (dict or defaultdict) whose keys are stock names (str) and values are the number of shares (int) the client owns. The second index is the amount of money (int) the portfolio is worth (the sum of the number of shares of each stock multiplied by its current price). Assume each client starts with no shares of any stocks, and if a client owns 0 shares of a stock, the stock should not appear in the client’s dictionary. Recall positive numbers are a purchase of the stock and negative numbers a sale of the stock. E.g., if db is the database above, calling summary(db, {'IBM':65, 'Intel':60, 'Dell':55, 'Apple':70}) would return

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Hi :). (_define Your question to answer) ,

What is the difference between MySQL and MariaDB?

Answers

Answer:

Explained below

Explanation:

They are both server database.

MySQL Server database has two licensing options namely GPLv2 and Enterprise. Whereas, MariaDB Server database is one that has only one license which it is licensed to namely GPLv2.

Now, the license for both of them differs in that the one for MySQL Server database comes with some available features and support. Whereas, the one for MariaDB comes with the full-featured package.

A drop light that does not allow any electrical parts to come in contact with the outer casing of the device is called a:

Answers

Answer:

The right answer is "Double insulated light".

Explanation:

Double insulated led is mostly a sophisticated type of natural light that does not necessitate a terrestrial or planetary correlation. These illuminations could be based on these metals, are indicated in the electrical protection environmental standards that now the construction workers comply with, and therefore are readily accessible about every bedroom.

Nia is editing a row in an Access table. The row contains the Pencil icon on the left end of the record
this icon indicate?
A. The record is committed.
B. The record has not been written.
C. The record has been written.
D. Nia is editing the record currently.

Answers

Answer:

The answer is D

Explanation:

That little pencil reminds you that you are entering or editing the current record, and that the changes you are making are not yet saved. The little pencil disappears as soon as you move off the current record. Take that as confirmation that Access has saved your new record, or the changes you made to an existing one.

In the case above, The row has the Pencil icon on the left end of the record this icon indicate Nia is editing the record currently.

What is record?

A record is known to be the state or fact of an act been put down or is been recorded.

Note that In the case above, The row has the Pencil icon on the left end of the record this icon indicate Nia is editing the record currently as it shows the pen icon.

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Explain the development, design and implementation aspects of algorithms in the development of software.

Answers

Explanation:

Phases of software development are ;

1. Requirements analysis

2.Domain analysis

3.Client-oriented design

4.Implementation-oriented design

5.Implementation

6.Integration

7.Packaging.

Ongoing Activities in Software Development

1. Risk analysis

2. Planning

3.Verification

4.Documentation

create a function that draws a certain number of spaces, followed by a certain number of stars, followed by a newline.

Answers

Answer:

Explanation:

The following code is written in Python and creates a function called create_sentence which takes in 2 parameters which are the number of spaces and the number of stars. Then it uses these values to create the sentence and return it.

def create_sentence(spaces, stars):

   sentence = ""

   for x in range(spaces):

       sentence += " "

   for x in range(stars):

       sentence += "★"

   sentence += "\n"

   return sentence

Which feature of dart helps in making the code readable,maintainable and finds type error during compile time

Answers

Answer:

Sound

Explanation:

Dart is object oriented. It's sound feature helps to make codes more maintainable and readable. The sound type system means that one can never experience w state where where an expression would evaluate to a value that wouldn't match that expressions static type.

The sound system makes the code to be unambiguous. It makes the code to be easier to read as types cannot lie, also your code would be more maintainable since when a piece of code gets to be changed, you would be warned of other pieces that may have gotten broken.

It should be noted that the sound is the feature of dart helps in;

making the code readablemaintainable finds type error during compile time.

According to the question, we are to discuss the feature of dart helps in making the code readable and helps in detecting the error as at time if compilation.

As a result of this we can see that sound system makes the code to be unambiguous and it helps in making the code readable.

Therefore, sound is the feature of dart helps in making the code readable.

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All of the following are data providers included with .NET for accessing and manipulating data in databases, EXCEPT ____. Group of answer choices

Answers

Complete Question:

All of the following are data providers included with .NET for accessing and manipulating data in databases, EXCEPT ____.

Group of answer choices.

A. OLE DB

B. ODBC

C. SQL Server

D. Access

Answer:

D. Access

Explanation:

A database management system (DBMS) can be defined as a collection of software applications that typically enables computer users to create, store, modify, retrieve and manage data or informations in a database. Generally, it allows computer users to efficiently retrieve and manage their data with an appropriate level of security.

A data dictionary can be defined as a centralized collection of information on a specific data such as attributes, names, fields and definitions that are being used in a computer database system.

In a data dictionary, data elements are combined into records, which are meaningful combinations of data elements that are included in data flows or retained in data stores.

This ultimately implies that, a data dictionary found in a computer database system typically contains the records about all the data elements (objects) such as data relationships with other elements, ownership, type, size, primary keys etc. This records are stored and communicated to other data when required or needed.

Basically, when a database management system (DBMS) receives data update requests from application programs, it simply instructs the operating system installed on a server to provide the requested data or informations.

Some examples of data providers included with .NET for accessing and manipulating data in databases are;

A. OLE DB: this is an acronym for Object Linking and Embedding Database. OLE DB was designed and developed by Microsoft corporation and it comprises of various application programming interfaces (APIs) used for data access.

B. ODBC: it is an acronym for Open Database Connectivity and it was designed and developed by Microsoft corporation used for data access through structured query language (SQL).

C. SQL Server: it is a domain-specific language server designed and developed for managing the various data saved in a relational or structured database.

Statistics are often calculated with varying amounts of input data. Write a program that takes any number of integers as input, and outputs the average and max.

Answers

Answer:

Explanation:

The following code is written in Python. It is a function that takes in a list of ints as a parameter. It then creates two variables one for sum and for max. It then loops through the list adding all the values to sum and adding only the largest value to max. Then it creates a variable called avg which calculates the average by dividing the variable sum by the number of elements in the list. Finally, it returns both avg and max to the user.

def avg_and_max(my_list):

   sum = 0

   max = 0

   for x in my_list:

       sum += x

       if x > max:

           max = x

   avg = sum / len(my_list)

   return avg, max

_____ selectors are used to select elements based on elements that are adjacent to them in the document hierarchy.

Answers

Answer:

Sibling

Explanation:

Sibling elements that share the same parents are adjacent to each other The basics are one level higher The last item on the childless hierarchy is decent. The child is the immediate next itemso correct answer is sibling

What item appears in a user’s My Unresolved items after synchronization using Salesforce for Outlook? (2 answers)

Answers

The avialble options are:

1. Notes not associated to a record

2. Emails not associated to a record

3. Contacts not assigned to an account

4. Cases not assigned to a contact

Answer:

1. Contacts not assigned to an account

2. Emails not associated to a record

Explanation:

Given that any items that are not automatically assigned to Salesforce records are found in My Unresolved Items.

Hence, usually, Items such as Contacts, Events, Emails, and Tasks are found in a user's My Unresolved Items after synchronization using Salesforce for Outlook.

Thereby, in this case, the correct answers are:

1. Contacts not assigned to an account

2. Emails not associated with a record

A medical record that contains computer-generated reports, collects data, and shares data with outside agencies is a

Answers

Answer:

Electronic Health Record

Explanation:

ELECTRONIC HEALTH RECORD is a medical record which helps to collect patients data pertaining the patients medical information and history such as the patient diagnosis, the treatment that was given to the patient and the medication given to the patient, by then sharing the collected and store medical data or information with external agencies in order to reduce any medical mistakes that may want to arise and to as well provide high quality health care service to the patient as regards to the patient already stored medical history on the ELECTRONIC HEALTH RECORD.

Write a procedure that takes a positive integer as a parameter. If the number given to the procedure is no more than 30, the procedure should return the absolute difference between that number and 30

Answers

Question (continuation):

If the number is greater than 30, the procedure should return the number doubled.

Answer:

The procedure written in C++ is as follows:

void absdiff(int num){

   if(num<=30){

       num = abs(num - 30);

   }

   else{

       num*=2;

   }

   cout<<num;

}

Explanation:

This defines the procedure

void absdiff(int num){

This checks if the integer parameter is not more than 30.

   if(num<=30){

If yes, the absolute difference between 30 and the number is calculated

       num = abs(num - 30);

   }

If otherwise

   else{

The number is doubled

       num*=2;

   }

This prints the processed result

   cout<<num;

}

See attachment for complete program that includes the main

What is the first thing that the criminalist must do after visualizing a print but before making any further attempts at preserving it

Answers

Answer:

Take a photograph

Explanation:

Prints, such as fingerprint, bare foot prints and others are evidences at crime scene that a criminalist can use when carrying out examination, analysis so that a link between the scene, the victim as well as the offender can be created. Once a print is visualized by a criminalist, then the next thing is to take take a photograph of it, then further attempt to preserve it can then be made. The photographs can also stand as physical evidence.

Ask the user to type in an integer greater than 50 and assign it to a variable called x. Write a program to calculate the sum of squares of positive integers. The loop should stop when the sum is greater than x. At the end of the loop print how many numbers were used to calculate the sum. For example, if x is 100, sum will be 91, and six numbers (1 to 6) were used to calculate sum.

Answers

Answer:

The solution in Python is as follows:

num = int(input("Number: "))

if num>50:

    sum = 0

    count = 0

    for i in range(1,num):

         count = count + 1

         sum = sum + i**2

         if sum > num:

              sum = sum - i**2

              count = count - 1

              break;

   

    print("Sum: "+str(sum))

    print("Numbers: "+str(count))

else:

    print("Number must be greater than 50")

Explanation:

The condition stated in the question do not conform with the example. The question says, the loop should stop when sum > x.

But:

When x = 100 and sum = 91, the program loop should not stop because 91 is not greater than 100.

However, I'll answer based on the example given in the question.

This prompts user for number

num = int(input("Number: "))

The following if condition is executed if number is greater than 50

if num>50:

This initializes sum to 0

    sum = 0

This initializes count to 0

    count = 0

The iterates through the inputted number (e.g. 100)

    for i in range(1,num):

This increases the count

         count = count + 1

This calculates the sum of square of the positive integer

         sum = sum + i**2

The following removes excess number from the sum

         if sum > num:

              sum = sum - i**2

              count = count - 1

              break;

This prints the calculated sum    

    print("Sum: "+str(sum))

This prints the count of number used

    print("Numbers: "+str(count))

The following is executed if user input is less than 50

else:

    print("Number must be greater than 50")

To find any information on the Internet, we enter specific keywords into a search engine. What happens next

Answers

Answer:

Answer A

Explanation:

Full virtualization is ideal for ___________. Migration capacity Computer system sharing,isolate users Disaster recovery Data replication

Answers

Answer:

Computer system sharing, isolate users

Explanation:

Full virtualization is ideal for "Computer system sharing, isolate users." This is evident in the fact that Full virtualization is a technique in which data are shared between operating systems and their hosted software. This strategy is then carried out from the top of the virtual hardware.

Also, the full virtualization strategy in computer service requests is distinguished from the physical hardware that enables them.

Hence, in this case, the correct answer is "Computer system sharing, isolate users."

What tab on the Ribbon would you select to create a Photo Album?
Design
Animation
Home
Insert

Answers

Answer:

It would be the last one Insert

Explanation:

I just know

Split the worksheet into panes at cell G1.

Answers

Answer:

1. Select below the row where you want the split, or the column to the right of where you want the split.

2. On the View tab, in the Window group, click Split.

Explanation:

The Matlab Script should:1. Clear the command window2. Clear the workspaceQuestion 1: Why do we clear the command window and workspace at the beginning of a script

Answers

Answer:

This is done for the simple reason of having more space to work on

Explanation:

This is done for the simple reason of having more space to work on. By clearing the command window and workspace you provide yourself with sufficient space to create new commands without the clutter of the previous commands. This also prevents your focus from shifting towards old commands and allows you to simply focus on the commands you are currently working on. This does not clear all variables from the script, it only clears the current screen but the previous commands can still be accessed by using the up-arrow key

Organizational Units are Active Directory __________ into which you can place users, groups, and computers. policies domains buckets containers

Answers

Answer:

containers

Explanation:

Organizational units are used to segment or assign objects in the Active Directory into their different locations. Just like files are arranged in folders, so also can objects in the Active Directory such as users, groups, and computers be assigned to different locations. It is like a container where objects are stored.

When the organizational unit is set up, by default, the users and computers account are created into which new users and computers are placed.

The following program calculates yearly and monthly salary given an hourly wage. The program assumes a work-hours-per-week of 40 and work-weeks-per-year of 50. Insert the correct number in the code below to print a monthly salary. Then run the program. The monthly salary should be 3333.333... .

Answers

Answer:

The program implemented in Python is as follows:

hourly=float(input("Hourly Wage: "))

print("Annual Rate: "+str(hourly * 40 * 50))

print("Monthly Rate: "+str(round((hourly * 40 * 50/12),2)))

Explanation:

The question is incomplete as the missing code is not given. However, I've written the program from scratch in python.

This prompts the program user for the hourly Wage;

hourly=float(input("Hourly Wage: "))

This calculates and prints the annual rate

print("Annual Rate: "+str(hourly * 40 * 50))

This calculates and prints the monthly rate

print("Monthly Rate: "+str(round((hourly * 40 * 50/12),2)))

Note:

The annual rate is calculated by multiplying the hourly wage to number of hours per week (40) to number of weeks per year (50)

The monthly rate is calculated by [tex]annual\ rate/12[/tex]

please help me please i really need helpp so i can pass

Answers

Answer:

Piezoelectric gauge is used to convert charge into measureable electric signal.

Universal serial bus interface allows a computer and flash drive to exchange information.

Analytical balance is used to measure mass

Ultrasonic flow sensors measure the seed of water using ultrasonic waves.

Explanation:

Analytical balance is used to measure mass. An analytical balance is a device that can measure the mass of an object  accurately. It can also measure very small amount of mass with a range between 0.1mg - 0.01mg.

Universal serial bus interface allows a computer and flash drive to exchange information. A Universal Serial Bus (USB) is an interface that allows communication between peripheral devices and a computer. It connects peripheral devices such as mouse, keyboards, printers, scanners, external hard drives and flash drives with the computer.

Piezoelectric gauge is used to convert charge into measureable electric signal. A piezoelectric gauge has a piezoelectric sensor that uses piezoelectric effect to measure changes in pressure, temperature, force and convert these changes into electrical charge.

Ultrasonic flow sensors measure the speed of flowing liquid using ultrasonic waves. It uses sound waves to determine the speed of the liquid.

Reading Materials Design and implement a set of classes that define various types of reading material: books, novels, magazines, technical journals, textbooks, and so on. Include data values that describe various attributes of the material, such as the number of pages and the names of the primary characters. Include methods that are named appropriately for each class and that print an appropriate message. Create a main driver class to instantiate and exercise several of the classes.

Answers

Answer:

Answered below

Explanation:

//The designs are implemented in Kotlin.

//Book class

class Book (val title: String,

val type: String,

val numberOfPages: Int,

val author: String ,

val yearPublished: Int ) {

fun bookDescription( ){

print("Book title is $title. Written

by $author and published

in $yearPublished" )

}

}

//Driver class

class Main {

fun main( ) {

val novel: Book = Book("Animal Farm", "novel", 200, "Orwell", 1990 )

println(novel.title)

println(novel.author)

val description = novel.bookDescription( )

println(description)

val magazine: Book = Book("Forbes", "magazine", 50, "Michael", 1995)

}

}

The process of auditing the source code for an application to verify that the proper security controls are present, that they work as intended, and that they have been invoked in all the right places is known as

Answers

Answer:

Security code review.

Explanation:

The process of auditing the source code for an application to verify that the proper security controls are present, that they work as intended, and that they have been invoked in all the right places is known as security code review.

The main purpose of security code review is to ensure that all the necessary security measures or procedures are adopted (available), to confirm the level of accuracy of its operations, and verify that all loopholes for unauthorized access or use by attackers is prevented.

Hence, various software developers employ the security code review process in order to ensure that the integrity and safety of their software applications or programs are present.

Code review is the process for auditing the source codes and is a an application that is used for verification of the proper security control that are present and that they are intended to use.

The code review is to assure the quality of the software and verity the activity that checks the program mainly for viewing the parts of code.

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Timothy is an architect. He needs to create a prototype of a new apartment that his firm is building. Which multimedia software would he use? A. image editing program B. painting program C. animation program D. digital video program E. 3D modeling program

Answers

E. 3D modeling program! This will always been used for architectural designing, a software example would be Archicad.


Jim wants to enlarge a black-and-white photograph with a warm-black tone. What type of black-and-white paper emulsion should Jim use for this
process?
A chlorobromide
B. bromide
C. chloride
D platinum

Answers

Answer:

A. Chlorobromide

Explanation:

I took the test and got it right. (Plato)

The type of black-and-white paper emulsion should be used by Jim is chlorobromide. Thus, option (A) is correct.

What is emulsion?

A sort of colloid called an emulsion is created by mixing two liquids that wouldn't typically mix. A dispersion of the other liquid is present in one liquid in an emulsion.

Emulsions frequently occur in foods like egg yolk, butter, and mayonnaise. Emulsification is the process of combining liquids to create an emulsion.

According to the above scenario, Jim wishes to expand a warm-toned black-and-white photograph. For this purpose, he should use chlorobromide for black-and-white paper emulsion.

Paper covered with a chemical compound that is light-sensitive, which is inferred as photographic paper. When exposed to light, it captures the latent image.

Therefore, it can be concluded that option (A) is correct.

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Roller coasters accelerates from initial speed of 6.0 M/S2 final speed of 70 M/S over four seconds. What is the acceleration? Which of these is a trinomial?O A. 2x - 7O B. 5xyO c. 2y2 + 7yO D. 2x3 7y3 + 14 7. Mrs. Bauer and her family went to dinner. Their dinner bill was $56.50 before tax and tip. An 8% sales tax needs to be applied and then they decided to leave a 15% tip. What is their total bill after the tax and then tip is applied? please help on the last question im gonna do 40 points HELP PLEASE IF GET RIGHT I WILL GIVE BRAINLIST In your opinion, how did music influence the life of the Medieval and Renaissancecomposers? Can you help me plz i learning it today Considering both short-term and long-term consequences, how did the nature of warfare change as a result of the Civil War? Select the linking verb and the predicate noun or predicate adjective. Solve the following two equations. Show all of yoursteps in the line paper provided. Be ready to share yourwork!Equation #1: 3x + 11 = 11Equation #2: 3(x 3) = 45 What do we call a cloud that forms right on the surface of the Earth? * which sentence best completes the diagram? PLEASE HELP !! What is the solution to the equation 6m - 60?O m- 10Om=50Om=88Om=360 dilate the point (2,3) by a scale factor of 3 using (-1,0) as the center of dilation.please help! if an explanation for the answer is provided i'll be sure to give brainliest! What do you think when you hear DNA? 13pts How successful were governmentefforts to promote settlement of theGreat Plains? Give examples tosupport your answer. Think About: the growth in population on theGreat Plains the role of railroads in theeconomy the Homestead Act 9Mi amigo y yo(ver) la televisin.10T(compartir) el postre. HELP I WILL GIVE YOU BRAINLIST PLS HELPWhat do you think is the most interesting career within the field of 2D art? Why? I need help...Briefly discuss the following events that took place during Jackson's Presidency: Carin has 2/3 of a bottle of paint. She uses 1/6 of a bottle to paint one model airplane. How many model airplanes can carin paint with 2/3 of a bottle of paint. Answer