This document discusses data types in programming. It explains that data types define rules for how data is stored in memory and what operations can be performed on that data. For example, the data type 'int' refers to a signed 32-bit integer that can be used for mathematical operations but not string operations. Data types help ensure the right type of data is stored and allow the CPU to understand how to process that data.

1. Foysal on Basic Programming
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Data Types
what are these?

2. how the CPU works?
it just executes 1s and 0s

3. we instruct the machine
the instructions turned into 1s and 0s by
compilers

4. Whats the difference between the
two?
"100" and 100

5. Answer the questions
"100"+"100" = ? 100+100=?
"100"+1=? 100+1=?
Length of "100" = ? Length of 100 = ?
Memory need for "100" = Memory need for 100 = ?
?
So, we can conclude that its not possible to answer each
of the questions mentioned above.
But why is that so?

6. Actually we set some rules
for the data and assigning a
specific amount of memory
to store that in memory. The
data follows the rules
defined for it and perform
some predefined operations

7. Yes. ladies and gentlemen..
These different rules are
called DATA TYPES

8. So, in C#, the data type 'int' means
The int keyword denotes an integral type that stores values (source)
Its size is Signed 32-bit
Its range is -2,147,483,648 to 2,147,483,647
we can perform mathematical operations such as Addition, Subtraction etc on this type
however, we can't perform concatenation, remove space etc operations on this type of data
If you look more closely, the mentioned are
the rules and allowed operations for 'int'
data type.