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2 years ago

Describe the five components of a computer

Computers and Technology

1 answer:

Anna [14]2 years ago

7 0

Answer:

Input, Processing, Storage, Output and Communication devices.

Explanation:

Input devices of computer are like Keyboard, Mouse, Scanner. Output devices of a computer are printers, monitors, and headphones.

There are two storages of computer one of them is REM, which can be lost if computer shutdown/closes. Data stays written on the disk until it's erased or until the storage medium fails (more on that later). An example of a communication device is the microphone.

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Write a program that determines the value of the coins in a jar and prints the total in dollars and cents. Read integer values t

Shalnov [3]

Answer:

The programming language is not stated. To answer this question, I'll make use of python programming language.

The following units of conversions is used in this program

1 quarter = $0.25

1 dime = $0.10

1 nickel = $0.05

1 penny = $0.01

$1 = 100 cents

This program makes use of few comment (See explanation for line by line explanation)

Having listed the above, the program is as follows:

#prompt user for inputs

quarters = int(input("Number of Quarters: "))

dimes = int(input("Number of Dimes: "))

nickels = int(input("Number of Nickels: "))

pennies = int(input("Number of Pennies: "))

#Convert coins to dollars

dollar = 0.25 * quarters + 0.10 * dimes + 0.05 * nickels + 0.01 * pennies

print("Dollar Equivalent")

print(str(round(dollar,2))+" dollars")

cent = dollar * 100

print("Cent Equivalent")

print(str(round(cent,2))+" cents")

Explanation:

This first line is a comment

#prompt user for inputs

This line prompts user for value of quarters in the jar

quarters = int(input("Number of Quarters: "))

This line prompts user for value of dimes in the jar

dimes = int(input("Number of Dimes: "))

This line prompts user for value of nickels in the jar

nickels = int(input("Number of Nickels: "))

This line prompts user for value of pennies in the jar

pennies = int(input("Number of Pennies: "))

Using the coin conversion listed in the answer section, the user inputs is converted to dollars in the next line

dollar = 0.25 * quarters + 0.10 * dimes + 0.05 * nickels + 0.01 * pennies

The string "Dollar Equivalent" is printed using the next line

print("Dollar Equivalent")

This line prints the dollar equivalent of the converted coins

print(str(round(dollar,2))+" dollars")

Using the coin conversion listed in the answer section, the user inputs is converted to cents in the next line

cent = dollar * 100

The string "Cent Equivalent" is printed using the next line

print("Cent Equivalent")

This line prints the cent equivalent of the converted coins

print(str(round(cent,2))+" cents")

Please note that the dollar and cent equivalents are rounded to two decimal places. Even though, it's not a requirement of the program, it's a good programming practice

7 0

4 years ago

Why would a person who handles electronic components wear a grounded wrist strap

Otrada [13]

Normally, wrist straps like this are used to prevent static electric discharge, which can ruin electric components.

5 0

3 years ago

Which subexpression will be solved first in the given statement?

Crazy boy [7]

Answer:

If you dont buy terraria than im going to make mrbeast buy it for you

Explanation:

reeeeeeeeeeeeeeeeeeeee

4 0

4 years ago

Which term was used to define the era of the Internet, when the web became a "platform" for user-generated input, as opposed to

Pachacha [2.7K]

Hello, The answer to your question is:-

Option "Web 2.0"

Reference and proof:-

Web 2.0 refers to websites that emphasize user-generated content, ease of use, participatory culture and interoperability (i.e., compatible with other products, systems, and devices) for end users.

Hope it helps you...

Answered by Benjemin ☺️

✅

5 0

3 years ago

Consider a relation about people in the United States, including their name, Social Security number, street address, city, state

andreyandreev [35.5K]

Answer:

For constructing relational schema, consider the relation as:

Data Attributes for USPeople: name, Social Security number (SSN), street address, city, state,

ZIP code, area code, phone number

1. Functional Dependency (FD):

A functional dependency (FD) is a relationship between the primary key and non-key attributes of the relation. For finding FD, we need to know about the primary key (PK) which should be unique.

Social Security number (SSN) is the only attribute that holds unique value for relation. R, attribute for any relation Y is functionally dependent on attribute X (usually the PK), if for every valid instance of X, that value of X uniquely determines the value of Y.

Social Security number (PK) ->;name, street address, city, state, ZIP code, area code, phone number

2. keys for the relation

Primary key = Social Security Number (PK)

Foreign key = Area code

In the normalization process, we can separate address table (street address, city, state, ZIP code, area code)

Can an area code straddle two states?

Yes, it can straddle between two states; it might be in cities/regions that “lie” across two states. For example, Kansas City is in Missouri and Kansas. A lot of people share the same area code.

Can a ZIP code straddle two area codes?

Yes, it can straddle between two states; it might be in cities/regions that “lie” across two states.

Can same Social Security number is allotted to two people?

NO, everyone has a unique SSN number.

Can peoples living together have the same address or phone number?

Yes, people living in the same house share addresses or phone numbers.

4 0

3 years ago