Skip to main content

Story of a Program

Image result for process state transition diagram

Hi, I'm a program. I have seen two worlds. People call then "Main Memory" and "Secondary Memory". Secondary Memory is my home, this is where I spend most of the time. It is my Home. Main memory(aka Primary Memory) is my work place, this is the place from where I turn into Action using processor.

I enter the Primary Memory aka Main memory. I have to take a toke and wait in the lounge. This is called as ready state. Some times the lounge gets crowded and few programs from here will be sent to another big lounge, it is called "Ready Suspended". So once we get the chance to enter the processor we move from ready state to "Running" state. While we are running inside processor we may need some resources and we get have to wait for those resources to be available. Then we are sent to another state from the "Running" state. This state is similar to "Ready Suspended ", which we went when we were waiting in the lounge, but this buffer state is within the main memory.This is pretty small place. Sometimes when this gets crowded, we enter the "Blocked Suspended" state which is a bigger place in the secondary memory.

Once the resource get available we are back to "Running", to get up and running. Once the running actions defined in the program are completed we end at a state called "Terminated".



Labels:

Comments

Post a Comment

Popular posts from this blog

Event Sourcing with CQRS.

  The way event sourcing works with CQRS is to have  part of the application that models updates as writes to an event log or Kafka topic . This is paired with an event handler that subscribes to the Kafka topic, transforms the event (as required) and writes the materialized view to a read store.
Post a Comment
Read more

Procedure to enable wireless LAN adapter in vmware!

I have went to find the way in which wlan in Kali Linux could be made listed my airmon-ng command. Most of the videos and posts suggested me that it is necessary to have another wi-fi adapter to have connected to wifi network. But this is not necessary. The procedure to do this is as follows: 1. Download this package in Virtual Machine(Kali linux) " http://wireless.kernel.org/download/compat-wireless-2.6/compat-wireless-2010-06-26-p.tar.bz2" 2.Unzip this package in terminal i.e navigate to place where you have downloaded this file , say desktop then type : cd Desktop for unzip type : tar -jxvf compat-wireless-2010-06-26-p.tar.bz2 3. Navigate into the uncompressed directory and type: i."make unload"  (only words within the quotes are the commands) ii."make load" Done!  now airmon-ng  should have the list of the required devices.
2 comments
Read more