Computer Basic

Good evening friends,
First of all i am really very sorry for not showing any new post since long time.As in this blog i want to provide you some general knowledge tips so in this post i want to share computer basic knowledge which necessary in any qualifying exam.
Friends,
Charles Babbage was the father of computer.Thare are basically five generation of computer.first computer was very big as room size which use vacuum tube.After this ic chips ,then transistors comes in existence.As development grow the size of computer reduces as efficiency increase.Now l.c.d,laptop,notebook comes in market.Computer has basically three main parts:-
1.Output unit:-It is also called visual display unit.It is used to show output to user.Monitor,printer are example of it.

2. Central processing unit:-it is also called brain of computer.It also contain memory unit,arithmetic and logical unit and control unit.

Input unit:-It takes input from your for showing output.Ex .keyboard ,mouse,joystick etc.
Now our concern is on that is computer is a hardware or software?
Friends,computer system by just seeing is a hardware like c.p.u,u.p.s,moniter ,speakers ,printer etc but set if program which helps in operate machine called software.Hardware can be touched but software can't.Hardware can be damaged or destroy but software only obslete means new advancement in technology can replace old one.If we want to set two system then for each system ti be setup require different hardware but same software can be coppied into different system.Computer understand binary language of 0,1.For understanding it four number system require:-
1.Binary number system
2.Octal number system.
3.Hexadecimal number system.
4.Decimal number system.
We will discuss number system basics in next post.
Stay in touch.Thanks.

Indian States,union territories and its capitals

Friends,
As we all of know that India is a great country.We all know about its states but some of people get confused a little bit.So i decided to listing these states and union territory with its capitals in alphabetical order.There are 28 states and 7 union territory in India.

1. Andhra Pradesh - Hyderabad
2. Arunachal Pradesh - Itanagar
3. Assam - Dispur
4. Bihar - Patna
5. Chhatisgarh - Raipur
6. Goa - Panaji
7. Gujarat - Gandhinagar
8. Haryana - Chandigarh
9. Himachal Pradesh - Shimla
10. Jammu & Kashmir - Srinagar (Summer), Jammu (Winter)
11. Jharkhand - Ranchi
12. Karnataka - Bangalore
13. Kerala - Thiruvananthapuram
14. Madhya Pradesh - Bhopal
15. Maharashtra - Mumbai
16. Manipur - Imphal
17. Meghalaya - Shillong
18. Mizoram - Aizawl
19. Nagaland - Kohima
20. Orissa - Bhubaneswar
21. Punjab - Chandigarh
22. Rajasthan - Jaipur
23. Sikkim - Gangtok
24. Tamil Nadu - Chennai
25. Tripura - Agartala
26. Uttar Pradesh - Lucknow
27. Uttaranchal - Dehradun
28. West Bengal - Kolkata


Union Territory - Capital

1. Andaman & Nicobar Islands - Port Blair
2. Chandigarh - Chandigarh
3. Dadra & Nagar Haveli - Silvasa
4. Daman & Diu - Daman
5. Delhi - Delhi
6. Lakshadweep - Kavaratti
7. Pondicherry - Pondicherry

Blood .........An essential component of body.

This article is about blood.As we all know blood is very essential for existence of life.So we should aware about it.

Friends,
Blood is made up of blood plasma and its cells floating in blood plasma.In blood lifeless plasma present 65% and live cells present 35%.Plasma contains 90% water and 10% other matters.
Blood Group
In 1902 a nobel price winner karl landsteiner discover blood groups.There are four type of blood groups in human body.

1. Blood group A


2. Blood group B


3. Blood group AB


4. Blood group O

A person having blood group O can donate blood to everyone,that is why it is called universal donar and having blood group AB can takes blood from every person so it is called universal recipient.

Blood group	Blood recipient group	Blood donation group
A	A,AB	A,O
B	B,AB	B,O
AB	AB	A,B,O,AB
O	O	A,B,AB,O

RH factor
It is a type of antigen which is found in red blood cells.If this factor found in a person body then he is RH⁺ and otherwise he is RH^-.In India 97% people are RH⁺.If a person having RH⁺ donate blood to a person having RH^- then that person might be dead.
Red blood cells and White blood cells
Red blood cells
These cells are red in color due to presence of red pigment called heimoglobin.Heimoglobin Supply Oxigen to every cell and extract CO₂ from body.The life span of RBC is 120 days.These are formed in bone marrow.
White blood cells.
These cells are unstructured in shape.Its life span is small as compared to RBC.Its life span is 24 to 30 hours.These are also formed in bone marrow.It main function is to separate dead components from body and transfer of blood and prevent body from infectious diseases.
Friends,
I hope you will enjoy the article by getting useful knowledge from this.
Thank you.
Stay in touch.........

Capital .....of different Countries

friends,
In this article i will discuss about capital of different countries including India.We should have knowledge about outside our country because we have to contact around the world.So I decided to write this article on capitals.I hope you are also agree with me and get required benefit from it and contribute by your skill also.

Country	Capital
India	New Delhi
Pakistan	Islamabad
Nepal	Kathmandu
Shree Lanka	Kolambo
Bangladesh	Dhaka
Bhutan	Thimpu
Maldeep	Afganisthan
china	Bizing
Japan	Tokiyo
Thailand	Bainkak
Singapur	Singapur
South Africa	Pritoria
Ghana	Akara
Sudan	Khartoom
Indonashia	Jakarta
iran	Tehran
Turki	Ankara
Cuba	Hawana
Australia	Kanbra
Yukrain	Keev
Pnama	Pnama city
Switzarland	Barn
France	peris
Itali	Rom
Jarmni	Barlin
Roos	Masko
Swidan	Stakhom
Iraq	Bagdad
England	Landon

friends,
These were a few capitals.I hope you were enjoy.
Thank you.
Stay in touch...........

History......time of India

This article is about some non forgetable dates in India.I know some people think that maths and science is useful subject for career but in competitive exams all subjects are equally contributes.So don't date it easy but get all knowledge for perfection.It is not only necessary for exams but we should have a little knowledge of our ancesstors.

Time Map.....For famous Battles in India

1. First Battle of Panipat.......1526,Between Ibrahim lodi and Babar,won by...Babar


2. Second battle of Panipat.......1556, Between Akbar and Hemu,won by....Akbar


3. Third battle of Panipat.....1761,Between Maratha's and Ahmad shah Abdali,won by....Ahmad shah Abdali


4. Battle of Khanwa............1527,Between Babar and Rana Sangha,won by...Babar


5. Battle of Plassy..........1757,Between Clive and Suraj-ud-daula,won by....Clive


6. Battle of Ghaghra......1529,Between Babar and Mahmood Lodi,won by....Babar


7. Battle of Buxer........1764,Between Mir Qasim and British East India company company,won by...East India company

friends,
These are a few Battle of India.I hope you were get benefit.

Science Questions Bank.........on Solution

This article about A topic solution.You will get something from this topic.

Solution.....

Questions:-
Ques 1:- Pressure cooker reduces the cooking time ,because..?
Ans.Boiling point of water inside is evaluated.

Ques 2:- When a non volatile solute is dissolved in a solvent, the relative lowering of vapour pressure is equal to...?
Ans. Molar fraction of solute

Ques 3::- the number of moles of solute per kg of a solvent is called...?
Ans. Molality.

Ques 4::- The atmospheric pressure of 6% of solution of urea at 0⁰C will be..?
Ans. 22.41 atm pressure.
How can we calculate this:-PV=ST or P=ST/V
Molecular weight of urea is 60
therefore 6 gm urea is present in 100 ml
because 60 gm urea is present in 100*60/6=1000ml or 1 litre
Hence V=1 litre,S=0.0821 lit atmospheric
T=273 k
P=ST/V=0.0821*273/1=22.4 atm

Ques 5:- On dissolving 1.0 gm of a compound in benene,the boiling point of benzene increases by 0.30⁰C.The molecular weight of compound is (molar elevation constant for benzene is 2.53)..?
Ans. 168.6
m=100*k_p*W/delta T*W
=100*2.53*1.0/0.30*50
=168.6

Oxidation and Reduction

This article is about Oxidation and Reduction reaction.Before discuss about the blog we should know something about its main point .

Oxidation and Reduction

Points To Remember:

1. The Energy which we get in our body is a result of redox reaction.


2. Reduction and Oxidation reaction takes place simultaneously.Where there is oxidation then equal amount of reduction also takes place.In combine form these are called redox reaction.

Electrolysis is also redox reaction where oxidation takes place at anode and reduction takes place at cathode.

The lose of electron by an atom or molecule or ion is called oxidation and gain of electron is called reduction.

Oxidation nature of an atom is directly proportional to electro nagetivity.

Terms	Change in oxidation Numbers	change in electron
oxidation	Increases	Loss of electron
reduction	Decreases	Gain of electron
Oxidising Agent	Decrease	Accepts electron
Redusing agent	Increase	Donates electrons
substance oxidised	Increase	Loses electron
Substance redused	Decrease	Gains electron

Questions on topic
Ques 1:-Oxidation involves?Ans. Loss of electron.

Ques 2:- A redusing agent is a substance which can..?
Ans. Donate electron.

Ques 3:-The oxidation state of nitrogen varies from ..?
Ans. -3 to +5

Ques 4:- Up to which product water can be oxidised..?
Ans. To O₂ and H⁺.

Ques 5:- Oxidation number os S in H₂SO₅ is..?
Ans. +6.