The statement "ROM is a non-volatile memory" is true of ROM.
What is ROM?ROM, an acronym for Read-Only Memory, denotes a form of memory that solely permits reading operations, devoid of any writing capability. It serves the purpose of preserving programs and data that are indispensable for initializing a computer system, such as the BIOS (Basic Input/Output System).
The BIOS, an application securely residing in ROM, carries out the crucial task of loading the operating system into the computer's RAM upon powering it on.
ROM essentially comprises an arrangement of transistors, organized in a grid-like structure. Each transistor possesses the ability to exist in either an activated or deactivated state. The intricate arrangement of these activated and deactivated transistors symbolizes the specific data that is immutably stored within ROM.
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Complete question:
Which statement about ROM is true?
(i) It is a volatile memory.
(ii) It is a non-volatile memory.
(iii) It is both a volatile and a non-volatile memory.
Which of the following pieces of equipment has a 3-P ,30 -A rated combination magnetic motor starter ?
aA.3/4 -hp motor
B.ATC PANEL
C.water heater
D.single pole switch
a) A.3/4 -hp motor has a 3-p, 30 -A rated combination magnetic motor starter
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___________ is a global issue and there is a requirement to find out the interdependencies among the customers and suppliers.
Answer:
Supply chain disruption is a global issue and there is a requirement to find out the interdependencies among the customers and suppliers.
Explanation:
The context suggests we are discussing some type of challenge involving the relationships between customers, suppliers and a larger supply chain. A "global issue" involving "interdependencies among the customers and suppliers" points to potential supply chain disruption or issues in a supply network.
Since there is a "requirement to find out the interdependencies" between customers and suppliers, this suggests we need to identify and analyze how they are connected and dependent upon each other in order to resolve the broader "global issue." This information could then be used to make changes, build resilience or manage risks in the supply chain.
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Answer:
Internet is global issues
Which of these measurements could be the measurement for a D sizing drawing
A.8 1/2 * 11in
B.11. * 17in
C. 14 * 20in
D. 20 * 26in
Out of the given options, the measurement that could be suitable for a D sizing drawing is option (D) 20 * 26 inches.
D sizing refers to a set of standardized paper sizes commonly used in architectural and engineering drawings. The D size paper measures 24 inches by 36 inches, or approximately 609.6 mm by 914.4 mm. While the exact dimensions may vary slightly, D sizing typically follows this general guideline.
Among the options provided, option D) 20 * 26 inches is the closest in size to the standard D size. While it is not an exact match, it is still within a reasonable range for D sizing drawings.
This measurement offers a similar aspect ratio and can accommodate the necessary information and details typically found in architectural and engineering drawings.
Options A) 8 1/2 * 11 inches, B) 11 * 17 inches, and C) 14 * 20 inches are not suitable for D sizing drawings. They are more commonly associated with letter-sized (A4) or tabloid-sized (A3) papers, which are smaller and may not provide enough space for detailed drawings or scale representation.
Therefore, option D) 20 * 26 inches is the most appropriate measurement for a D sizing drawing.
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What is the data type of the following variable?
name = "John Doe"
In computer programming, a variable is a storage location that holds a value or an identifier. A data type determines the type of data that can be stored in a variable. The data type of the following variable, name = "John Doe" is a string data type.
In programming, a string is a sequence of characters that is enclosed in quotes. The string data type can store any textual data such as names, words, or sentences.The string data type is used in programming languages such as Java, Python, C++, and many others. In Python, the string data type is denoted by enclosing the value in either single or double quotes.
For instance, "Hello World" and 'Hello World' are both strings.In conclusion, the data type of the variable name is string. When declaring variables in programming, it is important to assign them the correct data type, as it determines the operations that can be performed on them.
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Suppose you are creating a database for a library management system. Explain how you would create a table for the "books" entity and insert some sample data, and then alter the table to add a new column for the "authorID" attribute and update “authorID” with some data. Finally, write a SQL query to retrieve all the books that were published after the year 2000.
Note that this book schema has several columns, including "book_id" as the primary key, "title", "authorN", "publisher", "publication_year", "isbn", "language", and "num_pages". It also includes "available" column that is set to "true" by default and can be used to track the availability of the book.
You can use SQL syntax to create a table for the "books" entity in a library management system. See attached.
What is a library management system?A library management system is a software application or platform designed to facilitate the efficient organization, management, and automation of library operations.
It helps libraries streamline tasks such as cataloging, borrowing, returning, and tracking books and other library resources.
It also enables functions like user management, inventory management, and generating reports for analysis and decision-making.
Note that the above is used for a database system.
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To create a table for a database, I wiould use the CREATE TABLE funtion. That is CREATE TABLE Book. The INSERT function would be used to alter the table to add a new column. iINSERT INTO Books (authorID, text).
How to write an SQL queryTo write an SQL query, the writer first has to input the functions for different instructions. if you wish to create a new table, the CREATE TABLE fnction would be used.
If you wish to put new information, INSERT INTO will be used an if you want to retrieve information, Select function woud be used.
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Where are dimeson lines typically placed on a construction drawing?
A.At the bottom of the object
B. At the top of the object
C. Outside of the object
D.inside of the object
a) At the bottom of the object
Explanation:
from the bottom of the sketch (unidirectional dimensions) or froom the bottom and right side (aligned dimensions).
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Consider an array of 100 integers, which are completely unsorted. Provide a code snippet that will find the largest number in the array and calculate the number of computational steps required. Create a Loom video in which you comment on your code and give your assessment of the computational time required. Paste the link to your video here.
To find the largest number in an unsorted array of 100 integers, you can use the following code in Python:
The Python Codearray = [4, 2, 9, 7, ...] # Replace ellipsis (...) with the actual array of 100 integers
largest = float('-inf') # Initialize the largest number with negative infinity
for num in array:
if num > largest:
largest = num
print("Largest number:", largest)
As a result, the fragment of code will perform 100 loops, evaluating every element against the biggest number at the moment, and substituting it with any greater number discovered.
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b) Use a main method from the JOptionPane to request values from the user to initialize the instance variables of Election objects and assign these objects to the array. The array must be filled.
Below is an example code snippet for this process:
```javaimport javax.swing.JOptionPane;public class ElectionDemo {
public static void main(String[] args) {
Election[] elections = new Election[3];for(int i = 0; i < elections.length; i++) {
String name = JOptionPane.showInputDialog("Enter name of candidate: ");
int votes = Integer.parseInt(JOptionPane.showInputDialog("Enter number of votes: "));
Election e = new Election(name, votes);elections[i] = e;}
for(Election e : elections) {System.out.println(e.getName() + " received " + e.getVotes() + " votes.");
}
}
} ```
The above code snippet is a simple example that uses the JOptionPane to prompt the user to input values for the instance variables of an Election object. Here, we create an array of three Election objects and then use a for loop to initialize each object.
The for loop is a standard loop that iterates through each object in the array.Inside the for loop, we use the JOptionPane to prompt the user to input values for the name and votes variables. The input values are then used to create a new Election object, which is assigned to the current position in the array.
Finally, we use another for loop to print out the name and votes variables for each Election object in the array.
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Draw the schema mapping (logical database design) for the following part of ER diagram for train station database. When appropriate use the foreign key option.
The verbal description of the schema mapping is one whose drawing should have:
Tables: consisting of TrainStation:Train: consisting of train_id (Primary Key) and train_nameSchedule: consisting of schedule_id (Primary Key)RelationshipsWhat is the logical database designThis mapping schema is one that shows the interconnectedness of train schedules, trains and train stations. This feature enables you to save details regarding train stations, trains, and their schedules, which include the precise times of departure and arrival at given stations
.
To have a graphic depiction of this schema mapping, you have the option to utilize a database modeling application like Lucidchart, draw. io, or any comparable tool that facilitates the construction of ER diagrams or logical database layouts.
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Consider an array of integers. Write the pseudocode for either the selection sort, insertion sort, or bubble sort algorithm. Include loop invariants in your pseudocode. Create a Loom video in which you present your algorithm.
Answer:Quicksort is a sorting algorithm commonly used in programming.
What is the algorithm about?
Insertion sort and Selection sort are simple and straightforward algorithms suitable for small arrays or lists, while Quicksort and Bubble sort are more efficient and commonly used for larger datasets.
Explanation:
