why is computer system maintenance important​

Answer:

It all depends on what you are prepared to spend and what sort of system you install. I have both grid tie and stand alone systems installed at my home, and both work really well, although we initially had some inverter problems with the grid tie system until we decided to only use top shelf gear.

We have 6.6 kW grid tie system on the roof of the house which supplies around 3 times our requirements, and a 1.5 kW stand alone system that supplies the backyard workshop and pool pump. The grid tie system cost around $6500 to install, and the small stand alone system cost $4500 although this was designed and built by myself, so a purchased system may well be more (batteries are still expensive, but this price is coming down).

In the current configuration (top tier panels, Fronius grid tie inverter and Victron stand alone inverter and charge regulator), we have had no failures in several years, and power bills are something that happen to other people.

My advice is look at what your requirements are, then double that when you spec out your system and don’t go for the cheapest price. Buy your components based on the quality and reputation of the manufacturer, it will be expensive, but you will save money in the long run. A good manufacturer will guarantee their products for at least 12 years and you should expect to get at least 20 years of life out of them.

Explanation:

Solar energy is more than enough for any business or home, but if you want to know if it is cost effective, you need to run the numbers. It does have to be grid-tied though to provide electricity at night or when cloudy for multiple days. In most cases, batteries are not cost-effective at this time.

#keep learning!!

Answer:

FALSE IS THE ANSWER.

I HOPE IT IS HELPFUL

Answer: C. Boolean value

Explanation:

The options are:

A. input

B. output

C. Boolean value

D. conditional statement

Boolean data type refers to the data type which possesses two values which are true and false which shows two truth values of values.

The boolean expression results in a boolean value. Based on the question given, then the answer will be Boolean value. Therefore, the correct option is C.

Answer:

c

Explanation:

sorry if I was wrong

Answer:

put: forgot password to reset it

Answer:

Change your pass word

Open your Go ogle Account. You might need to sign in.

Under "Security," select Signing in to G oo gle.

Choose Password. You might need to sign in again.

Enter your new password, then select Change Password.

Answer:

import pandas as pd

pd.Dataframe(information)

Explanation:

Given :

Name Subject Marks

1 Anjan English 78

2 Shreya Science 87

3 Meena Science 81

4 Karan Maths 91

information = { 'Name' : ['Anjan', 'Shreya', 'Meena', 'Karan'], 'Subject' : ['English', 'Science', 'Science', 'Maths'], 'Marks' : [ 78, 87, 81, 91]}

The information in the table can be embedded in dictionary list as given above.

Using the pandas library in python :

The Dataframe method in pandas will create the table as shown by putting the variable as an argument in the DataFrame method.

Answer:

b. the top row of a table that shows titles for the cells below

Explanation:

A header row is the first row of a given table that shows titles of the cells below it. In many cases, the header row has different styles from the other rows in the table. A header row can be found in, among others, both Microsoft's Excel and Word applications.

In the attached figure, the first row with a darker shade of background color is the header row for the table.

Explanation:

hope it helps thank you❤

Answer:

Like ordinary random access memory (RAM), it can be repeatedly read, written to, and erased. Intended mostly for removable computer storage, DVD-RAM provides the capabilities of Rewriteable CD (CD-RW) - users can run programs from the discs, copy files to them and rewrite or delete them.

Explanation:

1) ethiCal : he is a good person to be socialized .

unethical : he should not trust the people so easily that he have never met and gave the password to them

2) ethical: she is a good girl to login in time and kepp only respected points

unethical : she should have Ateach her friends that they should not fight and discuss the right answer correctly

Answer:

We use the print() function to output data to the standard output device (screen). We can also output data to a file, but this will be discussed later. An example of its use is given below.

Answer:print()

Explanation:As said above. Print is what we use in python (:

Answer:

I would tell them " keep that attitude when the market crashes. "

Answer: Amazon Aurora

Explanation:

Amazon Aurora is a fully managed service which is vital in saving time through the automation of time consuming tasks like recovery, backup, provisioning, patching, repair, and failure detection.

Amazon Aurora also allows the encryption of databases through the use of keys that are managed through the AWS Key Management Service. Therefore, based on the information given the question, type of database service that the Architect should use is Amazon Aurora.

Answer:

DESFRAGMENTAR

Explanation:

es el proceso de reorganizar los datos almacenados en el disco duro para que los datos relacionados se vuelvan a juntar, todos alineados de manera continua.

Answer:

metropolitan area network (MAN)

Explanation:

A local area network (LAN) refers to a group of personal computers (PCs) or terminals that are located within the same general area and connected by a common network cable (communication circuit), so that they can exchange information from one node of the network to another. A local area network (LAN) is typically used in small or limited areas such as a set of rooms, a single building, school, hospital, or a set of well-connected buildings.

On the other hand, a metropolitan area network (MAN) spans a geographic area like a city, is larger than a local area network (LAN) and smaller than wide area network (WAN).

Basically, a metropolitan area network (MAN) is formed by an aggregation of multiple local area network (LAN) that are interconnected using backbone provided by an internet service provider (ISP). A metropolitan area network (MAN) spans for about 5 kilometers to 50 kilometers in size.

Answer:

Algorithm

Explanation:

Answer:

Two uses of the mortise chisel are;

1) Mortise chisel are used for cutting across the grain of the wood directly   and also

2) To lever waste materials out of the cut area and smoothen the cut area

Explanation:

A mortice is a recessed hole created in a part that is meant to accommodate a complementary projection part, which will enable the fastening of the two parts together

A mortise chisel are chisels used for the chopping out mortise joints, and are designed such that the heavy impact of a mallet

Answer:

000000000000000000000000000001111111111111111111

Answer:

Step 1 : Start

Step2 : Input first number, num1

Step3 : Input second number, num2

Step4 : product - - > num1 * num2 (product of num1 and num2)

Step5 : Input product, myanswer

Step6 : comparison - - - > correct or incorrect based on myanswer and product

Step6: print(comparison)

Step7: End

Explanation:

Algorithm is a sequence of instructions a computer is expected to follow to solve a particular problem.

Required :

Two inputs ; num1 and num2

Expected output

Algorithm :

Step 1 : Start

Step2 : Input first number, num1

Step3 : Input second number, num2

Step4 : product - - > num1 * num2 (product of num1 and num2)

Step5 : Input product, myanswer

Step6 : comparison - - - > correct or incorrect based on myanswer and product

Step6: print(comparison)

Step7: End

The two numbers to multiply are entered ; the product is calculated by the program ; the the user inputs his or her own expecteted product ;

Both are compared and the output of the comparison is displayed (either correct oe incorrect)

Answer:

Explanation:

[tex]{hope it helps}}[/tex]

The one that is missing in the list of information given is author’s sources. The correct option is D.

A "citation" is the way you tell the readers that some of the information in your work came from another source.

It also provides your readers with the information they need to locate that source on the reference or Works Cited page. A citation must be enclosed by parentheses.

It properly credits the authors of the phrases or concepts that you used in your paper. It enables those reading your work to find your sources and learn more about the ideas you present in your paper.

In the given list to cite a book, i.e. Author, title, date, publisher, the one that is missing and should be incorporated is author's source.

Thus, the correct option is D.

For more details regarding citation, visit:

https://brainly.com/question/1272936

#SPJ2

Answer:

hard copy attachments

Explanation:

Communication can be defined as a process which typically involves the transfer of information from one person (sender) to another (recipient), through the use of semiotics, symbols and signs that are mutually understood by both parties.

One of the most widely used communication channel or medium around the world is an e-mail (electronic mail).

An e-mail is an acronym for electronic mail and it is a software application or program designed to let users send and receive texts and multimedia messages over the internet.

The following documents or files such as soft copy attachments, web links and web pages may be sent from one user to another through the use of an email.

However, hard copy attachments cannot be sent via email because they're physical documents and as such requires that they be delivered physically to the recipient.

In conclusion, you can only send soft copy documents that you cannot feel or touch with your hands over the internet and via email. Thus, an email is only designed to accept soft copy documents or files (attachments) but certainly not hard copy documents (attachments) in our technological era.

Answer:

Following are the code to the given question:

Explanation:

<html>

<body>

<p align="center" >VOCATIONAL SUBJECT</p>

<table align="center" border="2">

 <tr>

   <td rowspan="2">YEAR</td>

   <td colspan="5">Vocational course</td>

 </tr>

<tr>

   <td rowspan="1">IT</td>

   <td rowspan="1">CS</td>

   <td rowspan="1">EL</td>

</tr>

    <tr>

   <td colspan="1">2016</td>

   <td colspan="1">66</td>

   <td colspan="1">68</td>

   <td colspan="1">60</td>

 </tr>

 <tr>

   <td colspan="1">2017</td>

   <td colspan="1">77</td>

   <td colspan="1">78</td>

   <td colspan="1">80</td>

 </tr>  

 <tr>

   <td colspan="1">2018</td>

   <td colspan="1">60</td>

   <td colspan="1">67</td>

   <td colspan="1">70</td>

   </tr>

</table>

</body>

</html>

Answer:

The program in Python is as follows:

def interest(P,R,T):

    [tex]I = P * R * T/100[/tex]

   return I

P = float(input("Principal: "))

R = float(input("Rate (%): "))

T = float(input("Time (years): "))

print(interest(P,R,T))

Explanation:

Required

Simple interest program using function

This defines the function

def interest(P,R,T):

This calculates the simple interest

   [tex]I = P * R * T/100[/tex]

This returns the calculated interest

   return I

The main begins here

These get inputs for principal, rate and time

P = float(input("Principal: "))

R = float(input("Rate (%): "))

T = float(input("Time (years): "))

This calls the interest function

print(interest(P,R,T))

Answer:

A. after you've created the presentation.

Explanation:

A power point presentation is defined as a presentation program where one can create any presentation or design any layout like the photo album slide show to present it to others.

Once the album is created in the PowerPoint, it can be changed by going to the slide show and editing the content of the photo album of the slide show. Thus it is easier to make any changes in the design of the photo album slide show after the presentation have been created.

Answer:

1.25 per unit

Explanation:

Number of units to sell = 100,000

Price per unit = 2

Fixed expense = 75000

At break even point :

Revenue = total expenses

Total expenses = fixed cost + variable cost

Let variable cost = x

Revenue = units to sell * price per unit

Revenue = 100,000 * 2 = 200,000

Hence,

Fixed cost + variable cost = Revenue

75000 + x = 200,000

x = 200, 000 - 75000

x = 125,000

Variable cost = 125,000

The variable expense per unit is thus :

Variable expense / number of units

125,000 / 100,000 = 1.25 per unit

Answer:

They are inappropriate

fallouts: Access denial and data theft

Explanation:

Dos ( denial of service ) and DDos ( distributed denial of service ) are inappropriate for legitimate organizations to use against each other. because DOS or DDos attacks are attacks on the server of an organization by sending an unusual amount of traffic to the server, thereby denying the devices and users connected to the server access to the server.

Access denial and data theft are the fallouts associated with DOS  and DDos attacks

Answer:

In theory yes it is gonna be pretty hard but it is very possible

Answer: Private addresses cannot directly communicate to hosts outside the local subnet.

Explanation:

Automatic Private IP Addressing (APIPA) allows assigning an IP address by a computer system automatically when there's no availability of a Dynamic Host Configuration Protocol (DHCP) server to perform the function.

Since after the configuration of the APIPA, all systems are able to communicate with each other, but there's trouble configuring Internet access, then private addresses cannot directly communicate to hosts outside the local subnet.

Explanation:

The machine-level language is a language that consists of a set of instructions that are in the binary form 0 or 1. As we know that computers can understand only machine instructions, which are in binary digits, i.e., 0 and 1, so the instructions given to the computer can be only in binary codes.

Answer:

The benefits of using the command line interface for setting up a file server are;

1) The command line interface (CLI) is faster than other interfaces and can easily handle tasks which are repeating such as creating folders for users on the server

2) The CLI requires less time for processing with the CPU, and it takes up less memory such that the file Server is not slowed down during the file setup process

3) The system resources required are few

The drawbacks are;

1) The CLI is confusing to those who are not exposed to programming as the commands the user needs to learn to before they can setup setup the new file server

2) The users needs to be very accurate in terms of spelling errors as that will lead to failure of the program, there are no spell check, and a mistype can lead to the entire coding process being restarted from the beginning

Explanation: