Answer:
Hardware and software are the mandatory parts
anyway keyword mouse monitor are not hardware parts of computer
Answer: Primary key
Explanation: Relational databases are those databases which are commonly found in the form of tables . It works in the relation pattern for accessing the data in the database
Primary key is a major factor which is found in the relational databases for the identification of the data in the table's column.It is considered as the unique value that corresponds to the values of rows in the table of relational database.
Answer:
totally
awesome
Explanation:
You can evaluate the expressions in the statements by hand:
if (a*b!=c) evaluates to
if (2*3 != 11)
if (6 != 11)
if (true)
so the next line is executed (it prints 'totally')
Likewise, the other if statement also evaluates to true.
List and dictionary data structures keep track some of our common information that we need in the following way.
Explanation:
Every programming language has provision for data structures. In the Python programming language, there are a total of 4 inbuilt data structures. These are namely list, tuple, dictionary, and set. Each of them is unique in its own right.
List
- A data structure that stores an ordered collection of items in Python is called a list. In other words, a list holds a sequence of items. You need to put all the items, separated by commas, in square brackets to let Python know that a list has been specified. The general syntax of a list is:
- some_list = [item 1, item 2, item 3,….., item n]
- After creating a list in Python, it is possible to search, add, and remove items from the list.
Dictionary
- It stores data in the form of key-value pairs. The keys defined for a dictionary need to be unique. Though values in a dictionary can be mutable or immutable objects, only immutable objects are allowed for keys.
- A dictionary in Python is defined using key-value pairs, separated by commas, enclosed within curly braces. The key and value are separated using a colon.
- The general syntax of a dictionary is: some_dictionary ={key 1 : value 1, key 2 : value 2, key 3 : value 3,…., key n : value n}