Semaphores

Peterson Solution

Using Flag Variable for Critical Section Problem

Using Turn Variable for Critical Section Problem

PRODUCER CONSUMER PROBLEM

Critical Section

Process Synchronization

CPU Scheduling

Introduction and Evolution of Operating Systems

Data Types in Python- Lecture 6- range

range Data Type:

range Data Type represents a sequence of numbers. 
The elements present in range Data type are not modifiable. i.e range Data type is immutable.

Form-1:

 range(10) generate numbers from 0 to 9

Form-2: range(10,20)

generate numbers from 10 to 19

 

Form-3: range(10,20,2)

2 means increment value by 2

 

We can access elements present in the range Data Type by using 

• loops
• index.

Using loops:

Using Index:

We cannot modify the values of range data type
Example:  
r[0]=100 
TypeError: 'range' object does not support item assignment


We can create a list of values with range data type
Example:
1) >>> l = list(range(10))
2) >>> l 
3) [0, 1, 2, 3, 4, 5, 6, 7, 8, 9]