What are Peripheral Devices? Explanation and use of devices.

The external devices connected to the computer are called peripheral devices. These devices are used for specific purposes. 

Some of the peripheral devices are as follows:

1.) Input Devices

2.) Out Devices 

3.) Other Devices

Input Devices

The computer needs instruction by the user. In order to instruct the computer we need external devices which helps it to process. All the devices which help user to give instruction to the computer are called input devices/peripherals. 

Following are some of the examples:

1.) Keyboard

2.) Mouse

3.) Light Pen

4.) Optical/Magnetic Scanner

5.) Touch Screen

6.) Microphone for voice as input

7.) Track Ball

Keyboard:

The keyboard is a common type of input device. Different types of keyboards are available, but they resemble each other by simple variations. The standard keyboard consists of 104 keys. It consist of alphabets, numeric and cursor keys. Cursor control keys are duplicated in order to allow easier use of the numeric keypad. 

Mouse :

The mouse is an important device in the windows computer system. It is electro-mechanical, handheld device. It performs like moving icons, starting programs, selecting menu commands/items, re-sizing windows and choosing options. Older version of mouse uses magnetically coated rolling ball in order to track movement on the flat surface. New technology has completely changed the weight and accuracy of the mouse. The modern mouse uses a laser beam to track movements on the flat surface. A mouse is used to replace hard to remember key combination whit easier point and click actions. The mouse can’t type alphabets and numbers, but it is used with a keyboard.

Light Pen:

A device by which you can input data into the computer by tapping or writing on the screen is called light pen. This device uses a light sensitive detector to select objects on the screen. You can directly point objects on the screen and select them. If you use paint programs this device is best for you to draw pictures.

Optical Scanner:

The devices which are used to input data into the computer are called scanners. These devices completely eliminate the manual input of data. For example bar code reader is a just different kind of image scanner. An image scanner converts images into the electric format which can be processed and saved in the computer's memory. Another example of a scanner is the OCR, this device scans printed copies of text images  and converts them into editable text.

Touch Screen:

The device which directly accepts input through the display screen is called input devices. You can input alphabets, numbers, mouse click and movements from the same panel. Touch screen input is mostly used in mobile devices like tablets, smart phones and other similar devices.

Microphone:

The device which accepts an audio signal as an input data is called a microphone. These devices are widely used for voice chat and online conference calls. Generally there are two types of microphone available:

1.) Desktop Microphone

2.) Hand held Microphone

Track Ball

The trackball is a device which is same as a mouse. Only the difference between them is that we move the whole mouse body move the cursor and trackball sits in one place and we need to move a ball by our thumb to move the cursor. A track ball contains one or three buttons and a ball.

The advantage of a trackball over mouse is it needs less space and place it on any kind of place as you need.

What is Computer? Basic Explanation and Definition

What is Computer?
Computer is a machine which converts data in to use full information. Data is a part of information. Data can be anything like numbers of cars in the city with different number plates. It can be age, sex, name weight, height, parts of a group of people.

We can also define the computer in terms of its functions. Following are the special functions of the computer
1.) Accept Data
2.) Store Data
3.) Process Data as Desired
4.) Process Data as Required
5.) Print The result in desired format.
 
Structure of the computer

The Basic Block Diagram of the computer is shown Below :

The  computer performs five major operations
1.) It accepts data and instructions by the means of input devices,
2.) It stores data and information
3.) It processes the data according to the users instruction
4.) It provides the results in the form of output
5.) It controls all the operations inside it

Each block of the computer is explained below.

1.) Input
The process of giving or entering data or instruction to the computer is called input. The process of inputting raw data to the computer in order to process is called input.
2.) Control Unit
Control unit is the most important part of the computer. All the operations like input, output and processing is controlled by this part. It decides when to stop and start reeving data. It also decides when and where to store the data. It controls step by step operations inside the computer.
3.) Arithmetic Logic Unit
All the logical operations are performed by this unit. The mathematical operations like subtraction, addition, multiplication, division, logic and comparison all are performed by this unit.

The Arthematic Logic Unit and Control Unit of a computer system is collectively known as Central Processing Unit (CPU). CPU is also called the brain of the computer. 

How To Make Facebook Account | Step by Step Instruction

Here is the step by step instruction on how to make facebook account. Facebook is the dad of the social network. Most of the people can't live with out facebook in today world. Facebook is fun and entertaining. If you can't find your friends in real world, just login to your facebook account then they are there the whole day and night. This is the world of internet, facebook makes very easy to find friends and make new friends.

I know its very easy how to make facebook account, but there might be some people who are just new to the internet and social networks. This is for those new people.

First open your browser(Internet Explorer, Mozila, Google Chrome etc) and type facebook.com on the address bar and hit enter. See the following Picture. I am using mozila for this guide.

After loading facbook on the browser you will get the following screen and type your details on the required fields.

On the above page type your first and last name on the top box.
Type your email address on the second and third box. You have to conform your email address to be sure if they are correct.
Now select you date of birth and gender and click on signup you will be redirected to another step/page.

In this step you will be given chance to find your friends, if you have contacts on your email address this is the simplest way to get your friends on facebook. Click on find friends button and you will be redirected to your email address page, thee you select all your friends and invite them. After finding finding friends with your email address you will be redirected to following page.

In this page will need to fill your basic information. Fill the name of your High School, College/University, your current employer, current city and hometown. That's it for this page click on save and continue and you will be redirected to the following page.

In this page facebook will automatically finds friends for you according to your basic information you provided. Click on add friend if you know them. Click on save and continue and you will be redirected to the following page.

In this page you will be given chance to choose your interests. See all the the subjects and click on like button what interests you. You can do this later too if you don't wan to like now you can skip this part. If you liked then click on save and continue. You will be redirected to the profile picture page.

 This page lets you to add your profile picture. If you have nice photo on your desktop click on upload a photo and select your picture and it will be uploaded and click on save and continue. After this your facbook account is completed. Now you have to conform you account in order to use facebook will send you email to conform your account. Just click on conform your account and you will be redirected to your facebook account. See the following image how it looks like facebook email in your inbox.

Now you are ready to use facebook. Make sure to ask facebook id of your friends and family. Add them and enjoy.

Six best exercises to lose weight

Over weight is a huge problem, in fact gaining excessive weight is to invite numerous diseases to your body which ruins your whole life. Losing weight is simple and hard if you are lazy. There are different methods to lose weight. Some people use surgery, dieting and other methods. The easiest way to lose weight is through exercise. Exercise does not only lose weight but it will improve overall performance your overall health. So, here is ten best exercises to lose weight.

1. Push-ups can help you to lose some weight

Push-ups train your triceps, chest, shoulders, lower back, glutenous and abdomen. The more you work out the more your muscles burn calories. If you are just a beginner start 10 pushups per day for a week and increase by 5 next week.

2. Body-weight Squats is the effective way to burn fat

Leg exercise targets huge amounts of muscles on your body. Leg exercises targets those muscles which uses huge chunks of calories. This exercise may be the most effective exercise to lose weight.

3. Pull-ups is the best calorie burner

Pull-ups are pulling your body upwards using your both hands. This exercise is the father of all other exercises which targets huge amounts of muscles on your body. This helps to burn calorie in huge amount. This exercise also helps you build your stamina and makes you strong.

4. Do not stay over night 

Researchers have found that those people who stay overnight suffer from obesity. They are found around 20 percentage of overweight when compared to the people those who do not stay overnight. Sleeping on time makes you active and energized which helps you to perform more physical activities and exercise.

5. Lose weight by bicycling

Bicycling is also the most effective way to lose your weight. This burns 600-1000 calories per hour. If you have a bicycle then uses it. 20 minutes of bicycling can make big difference.

6. Swimming 

Swimming targets each and every muscle of your body. It burns 800 calories per hour. If you have swimming facility available then start swimming daily.

These are the best exercises to lose weight. You can choose them according to your comfort. Get slim and sexier.

Ten Reasons why you should exercise regularly

Keeping yourself healthy and active is directly related to your life style you have. You can enjoy your family life happily at the peak being healthy and active. Regular exercise keeps your mental and physical health in better condition. It helps your heart, kidney and other organs of your body to run efficiently. You can prevent many diseases by just doing regular exercise such as cancer, heart attack, obesity and other health issues. Here I am going to share you ten health benefits of regular exercise.

1. Reduce cholesterol level in your body
High level of cholesterol produces clog on your arteries which blocks your blood circulation. Due to this reason your heart receives less blood and oxygen. If this happens your heart might not function properly. Clogs on your arteries also may form a buildup or blood clot might break and flow through the arteries. This might completely block the blood flow and causes heart attack. If you do regular exercise you are out of this danger.

2. Lower fat level on your blood stream
High fat level on the blood stream increases high risk of heart disease. Studies show that those who exercise regularly have lower level of fat on their blood stream.

3. Prevents high blood pressure 
When blood pressure level rises up there is high risk of developing heart disease. Blood pressure rises when men get older. But if you exercise regularly this can be avoided. Many health experts suggest that regular exercise helps people to keep their blood pressure in normal state.

4. Regular exercises help to control weight
Excess calorie in our body changes in to fat which make over weight. When you do exercise and physical activities, more calories burn. People who wake early in the morning and do some physical activities, it helps them to remain fit and slim.

5. Exercise can boost your energy
Regular exercise improves your stamina and boosts your energy. Physical activities help your blood circulation properly, which helps to deliver oxygen and nutrition efficiently. This helps your heart, lungs and kidney function properly. When everything is functioning properly inside your body you are energetic and active man.

6. Get healthier skin
The more you perform physical activities better the blood circulation. If you have better blood circulation on your skin it remains soft and moist every time. Soft and moist skin is like a protective case against external environment.

7. Regular exercises can improve your sex life
Many experts around the world suggest that 20 minutes of exercise on daily basis can improve your sex life. So, regular exercise can improve your vitality and stamina. People who do more physical exercise can remain longer during sexual intercourse and enjoy their life.

8. Gain muscle
As you get older your body does not build muscle efficiently, but it breaks down quickly. Exercise can stop breaking down muscles and help to balance it. Also you can work out to grow your muscles too. With proper diet and exercise you can maintain your muscle in a better condition, no matter how old you are.

9. Makes you mentally intelligent and creative 
Regular exercise helps you to become focused which makes you creative and intelligent. Exercise is very important to improve your life quality. It also helps you to build confidence level and a role to perform better on leadership.

10. Exercise helps you sleep better and deep
Some people can’t sleep due to stress and other causes. But you perform physical activities on daily basis you can solve this problem on your own. Exercising daily can help you fall asleep faster, better and deeper.

Your life is precious 20 minutes of regular exercise can make your life amazing and beautiful. Never miss a single day to your work out program.

Ten Amazing Facts About Bananas

Do you like bananas? If yes then, its good news for you. It is one of the best fruit for all the people. The good news is that banana is nutrition rich and helps you to gain verity of health benefits. It also helps in controlling your hunger and lowering your blood pressure. Here you are discovering ten facts about this fantastic fruit.

1. Bananas are diet friendly
A single banana consists of 100 to 110 calories, 3 grams of fibers and 30 grams of carbs. It also contains resistant starch which helps you to feel fuller and longer, resistant starch is a kind of carbohydrate. Greener banana contains more resistant starch. It is a perfect snack before your workout. Make sure you eat one banana one hour before you work out.

2. Helps you avoid Cancer
Eating bananas helps you prevent kidney cancer.

3. Trick your brain if you fell too much hunger
Studies have found that when you are hunger smelling some food can actually reduce your hunger. Banana comes on the list of one of those foods. If you have hunger dis orders smelling a banana might help on that. It also might help you to lose some weight. If you don’t believe, why not try? When you feel hunger next time test this banana smelling trick.

4. Banana as a Natural enhancer 
A lot of athlete people consume 10 to 15 bananas per day. The main reason behind is that it contains 100% natural organic carbohydrate which helps to produce energy in our body. In additions it also provides antioxidants which helps to speed recovery faster.

5. Bananas are convenient
Bananas can be eaten where ever you want. You even don’t need to chop or clean them. It is incredible versatile fruit. Bananas can be mixed with any kind of other food you like with. You can even mix with chocolates freeze them and enjoy the new test.

6. Bananas are very good source of Vitamin C
Vitamin C is the important antioxidant which helps our body to destroy free radicals inside our body. It also helps our muscle and other tissues to hold together with our bones. Consuming bananas provides you 15% of the vitamin C during the whole day. In addition banana helps you to keep your gums healthy.

7. Banana as a source of Vitamin B6
Vitamin B6 is very essential in our body. It helps to fight infections by producing antibodies, hemoglobin and insulin. It also produces amino acids to create a healthy cell. One banana contains about 20% of the daily requirement of vitamin B6. Eating banana is to be healthy.

8. Helps in Gastrointestinal Distress

Bananas are soft and easy to digest. It does not irritate stomach and upper gastrointestinal tract. It also helps people who suffer from constipation. Having one banana before bed is beneficial for constipation.

9. Banana is rich in blood pressure lowering agent

Studies have suggested that those people who consume potassium rich food do not have high blood pressure. A banana contains nearly about 400 to 500 milligrams of potassium. To maintain good health an adult person needs 4,700 milligrams of potassium. So, a banana provides 10 % of the daily requirements of potassium.

10. Banana as a mood booster 

You need about 320 to 420 milligrams of minerals on the daily basis. Lower level of these minerals develops anger, depression, irritability, anxiety and other mood disorders. Most of the food we consume on daily basis does not contain sufficient amount of magnesium. Eating a banana provides you 27 milligrams of magnesium. This helps you to be active and boost your mood. 

Ten reasons why you should not eat meat

A study of 70000 people concluded that vegetarian people have 12% lower risk of death from all causes, than the non-vegetarian. Researchers also claim that there is 24% lower risk of heart attack to the people those who never eat meat. Vegetarian people also do not suffer from obesity. There are numerous benefits of being a vegetarian. See the following important reasons why you should be vegetarian.

1. Get slim and become energized
Vegetarian people are up to 20 pounds lighter than the people those who eat meat. Meat is the huge source of high protein and fat along with that it contains toxins and harmful acidic materials. This causes you tired and lazy. Being vegetarian is to avoid those danger materials to get injected on your body. Vegetarian people get lots of natural fibers from what they eat which helps them to remain slim and young.

2. Help animals to live and be human
thousand even millions of animals are being killed for non-vegetarian people around the world. By the way if you are vegetarian you are saving more than 100 animals per year. The simple way to help animals is to choose be vegetarian. Avoid using eggs, dairy products and meats. We are human we should save and know the importance of every species on this planet.

3. Enjoy healthier and happier life
Researches have proved that meat contains a lot of toxic materials which slows down people and make them sick. Meat contains cholesterol and saturated fat which is the big reason to develop heart disease inside you. In fact vegetables are great diet for your health. Vegan people are less likely to develop heart attack, cancer, diabetes and high blood pressure. Vegetarian people get all the nutrients from plant which are organic and without side effect.

4. Vegetarian food is delicious
If you think there is nothing tastier than meat than you are wrong. Meat is just like nicotine, once you eat you like to eat again and again. So, in order to get tasty food you need to kill an animal first, this is total bull shit. There are ways you can make vegetables tastier

5. Meat is the risk of food poisoning
Meat is always contaminated with feces, blood and other bodily fluids. This makes meat top source of food poisoning. In America 2.4 million causes of food poisoning is caused by a dangerous bacterium called Campylobacter which is found in Tyson Chicken. This causes abdominal pain, fever, cramping and diarrhea.

6. World in nearer to the starvation help to solve this
Being non-vegetarian is to hurt animals and humans too. It takes unlimited organic food supply and money to raise the farmed animals. You may be surprised to know that to produce one pound of flesh of an animal you need to feed them at least 13 pounds of grains. It is much better to use directly our food as a plant. The more people go vegetarian the more we are able to feed hunger people. So, this is the simplest way to avoid future starvation. Help our planet to be safe in the future.

7. Possibly you can save the planet
If you want to keep our planet safe and green stop eating meat. Eating meat is the worst thing you can do to the earth. One of the biggest causes of global warming is due to meat industry. To prolong the expiry date of the meat they use huge amount of electricity to operate refrigerators. If you are concern about the global warming and climate change then being vegetarian is the easiest way to help save our planet earth.

8. Save your money
Stop eating animals and save money. You can get better nutrients by spending less money on the vegetarian food. People who do not eat meat are healthy and do not need to spend a lot of money on their health problem.

9. Be civilized
You understand that you have life and you have the right to live on this planet until you die due to natural causes. So, animals have their own life and right it’s our duty to protect them.

10. look young and sexier 
Vegetarian people are thinner and energetic. They are able to perform more tasks and work longer than meat eaters. If you are non-vegetarian it will be very hard to compete with vegetarian people. Over time meat eaters will look older than non-meat eaters.

So, you can enjoy your life much happier and healthier by just not eating meat. Happy vegetarian.



 

 

Ten Reasons why you should drink ten Glass of water a Day

Water is the most important component of a body to remain alive and healthy. The human body is composed of 60% to 80% of water depending on the body size. Appropriate and regular water drinking has tremendous amount of health benefits. But water does not contain any calories at all like fat, sugar, carbohydrates etc. In fact, your health issues are related to the amount of water you consume on daily basis. To maintain your body healthy you should drink water a lot. Health Experts and Clinical doctors recommend that drinking at least ten glass of water a day is important to maintain good health. Water plays a vital role to function our body properly. Every cell in our body needs water to function. Our body needs to be well hydrated which is very important for good health.

Drinking enough water has numerous of benefits, some of them are explained below.

1. If you are overweight water drinking might help you in your weight loss program

Lots of people use water as a weight loss agent on their weight loss program. It actually flushes away bi-products of fat inside your body. In fact if your stomach is full of water you do not feel hungry and consume less food. If you consume a lot of high calorie drinks replace them with water. Water does not contain any calorie. So, this might be the first step in your way to lose some weight.

2. Makes your skin healthy and smooth

Free molecules are the main causes of aging. Drinking a lot of water flushes those molecules out of your body. Well hydrated body helps your skin look healthier and younger. Enough water in your body helps to repair your skin tissues and increases elasticity. For glowing, fresh, soft and smooth skin enough amount of water is needed in your body. Most of the skin problems such as acne, scars, wrinkles and other skin aging symptoms can be avoided by drinking adequate amount of water.

3. Get comfort from Headaches and Migraines by drinking water

In Some cases the reason behind headaches and Migraines is dehydration. In this case if an individual drinks good amount of water his body becomes hydrated and soon he will feel normal as before. So, if you have a lot of headaches and Migraines problem drink at least ten glass of water a day and water is free does not cost a single cent.

4. Get rid of Fatigue and feel fresh

Water helps you keep active and feel fresh. Low consumption of water causes of feeling tired all the day. Water is the main compound used in our body. It helps our body to remove harmful toxins and waste product of the body. If you do not drink proper amount of water, the heart and kidney needs to work more hardly to pump oxygenated blood in to our tissues and cells. At the same time all other major parts of the body become exhausted due to the high amount of toxins and waste material. So why not to drink good amount of water and remain active and fresh.

5. Improve you mood with water

Properly hydrated body makes you feel good and increases your energy level. This is possible when you drink adequate amount of water. Your brain receives positive signals when you are active and your body is functioning in a proper way. Positive signal to your brain boosts your mood and make you feel better and happier. You know that good mood has direct impact on your creativity level.

6. Solve Digestion and Constipation problem 

Drinking water also helps our digestive system to work properly. If you drink less amount of water you might suffer from constipation. Unbalanced functionality of gastrointestinal tract is the main cause of constipation. If you drink proper amount of water then your metabolism rate will be normal and helps to break down consumed food by you properly.

7. Drinking water regulates body temperature

Our body is a complex biological machine. It produces large amount of heat energy. Our body regulates its temperature in an appropriate level where it can function properly. In order to that it uses the water. The body release sweat to release access amount heat to maintain the temperature level. If you are in very hot place drinking a lot of water might help you to remain cool.

8. Drinking water reduces the risk of cancer

Studies suggested that risk of colon cancer and bladder cancer can be minimized by drinking adequate amount of water. Water dissolves cancer causing agents and minimizes the risk of cancer.

9. Water can improve your immune system

When you drink proper amount of water your body remain clean and toxin free. Clean and toxin free body tends to reproduce more amount of white blood cell. It means your body has a strong immune system. Your body can easily fight against diseases such as flu, kidney stones and heart attack.

10. Drinking water Solves Bad Breath

Does your breath smell like a shit? Just drink a lot of water. Your saliva keeps your mouth hydrated, clean and bacteria free. If you do not drink adequate amount of water all the toxins and waste material on the body comes with your saliva and stuck on your mouth. This is also the cause of bad breath. Drinking good amount of water makes your saliva healthy and kills the bacterium that causes bad breath. So, it is a smart habit to drink at least ten glass of water in a day.

You do not need to spend a lot of money on water. No body and nothing can stop you being a healthy person. So, make a habit to drink at least ten glass of water per day. Make this your favorite habit.