The function user_num repeats in python. That can be written as follows:
# Reading user number and enter the value.
user_num = int(input("Enter a number: "))
#use the while loops for condition if user_num is ≥ 1
While user_num >= 1:
#dividing the user_num by 2 and note down the result as user_num
user_ num = user_num / 2
#Now, print user_num
print(user_num)
In this, the while loop condition works with 2 conditions:
The condition runs the division when the value of user_num is greater than or equal to 1. When the value of user_num is less than 1, then the loop terminates.
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Answer:
The primary control.
When you align or size a group of selected controls, the changes are made relative to the primary control.
Explanation:
When selected controls are set together, apart from the primary control, to be executed, they take preeminence over the established primary controls.
Answer:
Identity theft can be prevented by using proper security measures
Explanation:
Identity theft can be prevented by using proper security measures such as stronger passwords and VPN. It can also be protected by making sure your system security is up to date.
Converting conceptual model to logical model is described below.
Explanation:
The main aim of this model is to establish the entities, their attributes, and their relationships. In this Data modeling level, there is hardly any detail available of the actual Database structure.
The 3 basic tenants of Data Model are
-
Entity: A real-world thing
-
Attribute: Characteristics or properties of an entity
-
Relationship: Dependency or association between two entities
For example:
- Customer and Product are two entities. Customer number and name are attributes of the Customer entity
- Product name and price are attributes of product entity
- Sale is the relationship between the customer and product
Characteristics of a conceptual data model
- Offers Organisation-wide coverage of the business concepts.
- This type of Data Models are designed and developed for a business audience.
- The conceptual model is developed independently of hardware specifications like data storage capacity, location or software specifications like DBMS vendor and technology. The focus is to represent data as a user will see it in the "real world."
- Conceptual data models known as Domain models create a common vocabulary for all stakeholders by establishing basic concepts and scope.
Logical Data Model
Logical data models add further information to the conceptual model elements. It defines the structure of the data elements and set the relationships between them.
The advantage of the Logical data model is to provide a foundation to form the base for the Physical model. However, the modeling structure remains generic.
At this Data Modeling level, no primary or secondary key is defined. At this Data modeling level, you need to verify and adjust the connector details that were set earlier for relationships.
Characteristics of a Logical data model
- Describes data needs for a single project but could integrate with other logical data models based on the scope of the project.
- Designed and developed independently from the DBMS.
- Data attributes will have datatypes with exact precisions and length.
- Normalization processes to the model is applied typically till 3NF.
Answer:
See my explanations and attachment
Explanation:
Construct an 8k X 32 ROM using 2k X 8 ROM chips and any additional required components. Show how the address and data lines of the constructed 8k X 32 ROM are connected to the 2k X 8 chips.
I tried to solve it but I am not sure if I got the correct answer. Could anyone check my drawing and correct me?