Computer hardware is a physical part of a computer that executes within the hardware. It is unlike computer software or data that can be frequently changed, modified or erased on a computer. Computer hardware is not frequently changed and so is stored in hardware devices such as read only memory (ROM) where it is not readily changed.
Most computer hardware is embedded and so is not visible to normal users. Below are the different types of hardware's found in a computer.
Ø Motherboard: It is the central or primary circuit board making up a complex electronic system such as a computer. A motherboard is also known as a main board, logic board or system board.
Ø Central processing Unit: A CPU is the main component of a digital computer that interprets instructions and process data in computer programs.
Ø Random Access Memory: A RAM allows the stored data to be accessed in any order. RAM is considered as the main memory of the computer where the working area is used for displaying and manipulating data.
Ø Basic Input Output System: BIOS prepares the software programs to load, execute and control the computer.
Ø Power Supply: Power Supply supplies electrical energy to an output load or group of loads.
Ø Video Display Controller: It converts the logical representation of visual information into a signal that can be used as input for a display medium.
Ø Computer Bus: It is used to transfer data or power between computer components inside a computer or between computers.
Ø CD-ROM drive: It contains data accessible by a computer
Ø Floppy disk: It is a data storage device
Ø Zip Drive: It is a medium capacity removable disk storage system.
Ø Hard Disk: It is a non-volatile data storage system that stores data on a magnetic surface layered unto hard disk platters.
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Tuesday, September 14, 2010
7 Tips for Shooting Great Digital Photos
Maybe you somehow messed up the photos you took of important events, like your daughter's birthday or your trip to Paris.
You can imagine the frustration one feels when photos of memorable events turn out ugly.
A shot of some beautiful flowers
So how do you begin to take good photos? Well, the first thing to remember is this: It's the photographer that takes great photos, not the camera. Think about that for a minute. It's true isn't it? I've seen some people take great photos with a simple point-and-shoot camera, while some take lousy shots with the most expensive SLR.
Fret not! Read these tips on shooting digital photos and apply them the next time you have a chance. Before long, you'll be shooting photos like a pro!
1. Know Your Camera
Does this sound familiar? You buy the latest digital camera out there, come home, rip off the box, then proceed to fiddle with the device. You briefly flick through the hundred page camera manual and then never look at it again. Not a good idea! If you buy a digital camera, you owe it to yourself to understand its ins and outs. Learn how to control exposure, how to use different camera modes and how to use the flash. The knowledge you gain about the camera will be invaluable when you're out in the field taking those special photos.
2. Learn to Control the Flash
One of the most important things you need to know about digital photography is to control the flash. Personally, I hate to rely on the automatic flash that comes with the digital camera. Depending on the situation, you need to switch off or switch on the flash.
For example, when taking outdoor photos, it is sometimes good to turn on the flash to illuminate the subject, especially if he or she is in the shade. On the other hand, you can also choose to turn off the flash when taking indoor shots. Sometimes, using the flash indoors will result in unnatural skin color and harsh glare in your photos.
3. Play with the Macro Mode
Almost all digital camera these days have a macro mode. This setting is ideal for taking close up shots of objects like flowers or insects. On my Canon PowerShot S500, it's represented by a flower symbol. What you do is to pick a subject, turn on macro mode, then get as close to it as your camera will allow. Make sure you allow the camera to focus properly before depressing the shutter button fully.
4. Hold the Camera Level
A basic rule of photography is to hold the camera level. Since mos
Monday, September 13, 2010
Tips for Shooting Great Digital Photos
Do you have trouble shooting good digital photos? Perhaps you've been taking digital photos for some time, but never really got the beautiful shots you wanted.
Maybe you somehow messed up the photos you took of important events, like your daughter's birthday or your trip to Paris.
You can imagine the frustration one feels when photos of memorable events turn out ugly.
A shot of some beautiful flowers
So how do you begin to take good photos? Well, the first thing to remember is this: It's the photographer that takes great photos, not the camera. Think about that for a minute. It's true isn't it? I've seen some people take great photos with a simple point-and-shoot camera, while some take lousy shots with the most expensive SLR.
Fret not! Read these tips on shooting digital photos and apply them the next time you have a chance. Before long, you'll be shooting photos like a pro!
1. Know Your Camera
Does this sound familiar? You buy the latest digital camera out there, come home, rip off the box, then proceed to fiddle with the device. You briefly flick through the hundred page camera manual and then never look at it again. Not a good idea! If you buy a digital camera, you owe it to yourself to understand its ins and outs. Learn how to control exposure, how to use different camera modes and how to use the flash. The knowledge you gain about the camera will be invaluable when you're out in the field taking those special photos.
2. Learn to Control the Flash
One of the most important things you need to know about digital photography is to control the flash. Personally, I hate to rely on the automatic flash that comes with the digital camera. Depending on the situation, you need to switch off or switch on the flash.
For example, when taking outdoor photos, it is sometimes good to turn on the flash to illuminate the subject, especially if he or she is in the shade. On the other hand, you can also choose to turn off the flash when taking indoor shots. Sometimes, using the flash indoors will result in unnatural skin color and harsh glare in your photos.
3. Play with the Macro Mode
Almost all digital camera these days have a macro mode. This setting is ideal for taking close up shots of objects like flowers or insects. On my Canon PowerShot S500, it's represented by a flower symbol. What you do is to pick a subject, turn on macro mode, then get as close to it as your camera will allow. Make sure you allow the camera to focus properly before depressing the shutter button fully.
4. Hold the Camera Level
A basic rule of photography is to hold the camera level. Since most digital cameras come with a LCD, you can use it to properly frame your shots. Next time you're taking a shot, try to look for the horizontal lines and use them as guides. A good example is to make use of the horizon when you're taking a photo of a sunset.
5. Use The Tripod
I recommend this tip to all budding photographers - camera tripods are an essential tool in your photography arsenal. When will you need a tripod? Well, it's useful if you're taking shots under low-light conditions or trying to capture fast moving objects. I like to use a tripod when taking night shots city streets, for example. Always try to look for a tripod that's convenient to carry around. For personal use, you don't need a huge one - just a simple compact one that's easy to pack.
6. Play with the ISO Setting
I find the ISO setting in digital cameras very useful. The ISO setting of a essentially camera controls it's sensitivity to light. If you're taking a photo of a still object, like a flower, then always use a low ISO setting. It allows for a longer shutter speed and produces a cleaner image. If you're shooting a moving object, like a baby playing with a toy, then a higher ISO setting of say 400 would be better. Do take note, however, that a higher ISO setting gives a faster shutter speed and requires less light. This will produce noiser photos.
7. Have Enough Memory Capacity
Just like you must have enough rolls of film when using traditional cameras, make sure you always have enough memory capacity in your digital camera. It's terrible to be on a holiday taking great photos and suddenly realizing you've no memory space left. Here are some general guidelines for digital camera storage.
* 2 megapixel cameras - get at least a 64MB card
* 3 megapixel camera - get at least a 128MB card
* 4 megapixel camera - get at least a 256MB card
* 5 megapixel camera and above - get at least a 512MB or 1GB card
Conclusion
Whew. A pretty long article. I hope I've managed to give you some good tips on shooting great digital photos. Always remember what I said - while the latest and greatest digital cameras have amazing features, you still need a skilled photographer to take nice pictures. Apply the above tips to your everyday shooting and learn to be a better photographer.
Maybe you somehow messed up the photos you took of important events, like your daughter's birthday or your trip to Paris.
You can imagine the frustration one feels when photos of memorable events turn out ugly.
A shot of some beautiful flowers
So how do you begin to take good photos? Well, the first thing to remember is this: It's the photographer that takes great photos, not the camera. Think about that for a minute. It's true isn't it? I've seen some people take great photos with a simple point-and-shoot camera, while some take lousy shots with the most expensive SLR.
Fret not! Read these tips on shooting digital photos and apply them the next time you have a chance. Before long, you'll be shooting photos like a pro!
1. Know Your Camera
Does this sound familiar? You buy the latest digital camera out there, come home, rip off the box, then proceed to fiddle with the device. You briefly flick through the hundred page camera manual and then never look at it again. Not a good idea! If you buy a digital camera, you owe it to yourself to understand its ins and outs. Learn how to control exposure, how to use different camera modes and how to use the flash. The knowledge you gain about the camera will be invaluable when you're out in the field taking those special photos.
2. Learn to Control the Flash
One of the most important things you need to know about digital photography is to control the flash. Personally, I hate to rely on the automatic flash that comes with the digital camera. Depending on the situation, you need to switch off or switch on the flash.
For example, when taking outdoor photos, it is sometimes good to turn on the flash to illuminate the subject, especially if he or she is in the shade. On the other hand, you can also choose to turn off the flash when taking indoor shots. Sometimes, using the flash indoors will result in unnatural skin color and harsh glare in your photos.
3. Play with the Macro Mode
Almost all digital camera these days have a macro mode. This setting is ideal for taking close up shots of objects like flowers or insects. On my Canon PowerShot S500, it's represented by a flower symbol. What you do is to pick a subject, turn on macro mode, then get as close to it as your camera will allow. Make sure you allow the camera to focus properly before depressing the shutter button fully.
4. Hold the Camera Level
A basic rule of photography is to hold the camera level. Since most digital cameras come with a LCD, you can use it to properly frame your shots. Next time you're taking a shot, try to look for the horizontal lines and use them as guides. A good example is to make use of the horizon when you're taking a photo of a sunset.
5. Use The Tripod
I recommend this tip to all budding photographers - camera tripods are an essential tool in your photography arsenal. When will you need a tripod? Well, it's useful if you're taking shots under low-light conditions or trying to capture fast moving objects. I like to use a tripod when taking night shots city streets, for example. Always try to look for a tripod that's convenient to carry around. For personal use, you don't need a huge one - just a simple compact one that's easy to pack.
6. Play with the ISO Setting
I find the ISO setting in digital cameras very useful. The ISO setting of a essentially camera controls it's sensitivity to light. If you're taking a photo of a still object, like a flower, then always use a low ISO setting. It allows for a longer shutter speed and produces a cleaner image. If you're shooting a moving object, like a baby playing with a toy, then a higher ISO setting of say 400 would be better. Do take note, however, that a higher ISO setting gives a faster shutter speed and requires less light. This will produce noiser photos.
7. Have Enough Memory Capacity
Just like you must have enough rolls of film when using traditional cameras, make sure you always have enough memory capacity in your digital camera. It's terrible to be on a holiday taking great photos and suddenly realizing you've no memory space left. Here are some general guidelines for digital camera storage.
* 2 megapixel cameras - get at least a 64MB card
* 3 megapixel camera - get at least a 128MB card
* 4 megapixel camera - get at least a 256MB card
* 5 megapixel camera and above - get at least a 512MB or 1GB card
Conclusion
Whew. A pretty long article. I hope I've managed to give you some good tips on shooting great digital photos. Always remember what I said - while the latest and greatest digital cameras have amazing features, you still need a skilled photographer to take nice pictures. Apply the above tips to your everyday shooting and learn to be a better photographer.
Sunday, September 12, 2010
How to Take Better Night Photos
Do you like to take photos at night? I know I do. There's something magical about them - pictures of the moonlight sky and dazzling neon lights convey a special something that daytime photos can't.
When I started out taking digital photos at night, boy, did I have problems! The issue is that many digital cameras do not perform very well under low-light conditions. To take good night photos, there are some tricks you need to remember - so here are a few of them.
A photo of Hong Kong at night
Tip 1: Use Long Exposures
The key to successful night photography lies in a long exposure. We’re talking about exposures measured in seconds. When a long exposure is used, more light is allowed into the camera, allowing the details in your night photo to be captured.
The problem with using long exposures is that you may shake the camera, resulting in poor pictures. The way around this is to use a tripod. I prefer to install a tripod with a shutter-release cable to ensure that I don’t jolt the camera at all.
Tip 2: Take Control Shots
One problem with digital cameras is that there are always some pixels on the image sensor which are bad. When taking day photos, these defects are not discernible. However, they are pretty obvious in night photos. How do we correct these? Here’s a simple way – take a control shot, then use image editing to subtract out those bad pixels.
This is how it works. The next time you’re out to take night photos, go ahead and snap a picture of Scene A, as you normally would. Then, when it’s convenient, take a photo of the exact same Scene A again, but with the lens cap on.
Now you will have two images, one night shot and one control shot (with the hot pixels). Load them up in say, Paint Shop Pro. Switch to the control shot and select Edit and Copy from the menu. Next, switch to the night shot and paste the copied image as a new layer. Then, select the new layer and change the Blend Mode to Difference and click OK. You’ll get the correct night shot with the hot spots subtracted out.
Tip 3: Try to Capture Motion
With a long exposure, you have many creative options when it comes to photography. This includes capturing motion. For example, have you ever wondered how those professional photographers shoot pictures of trails of car lights as they zoom down the highway at night? It’s all due to long exposures. Try to keep this in mind the next time you’re taking a night photo – you don’t have to restrict yourself to still images.
Tip 4: Play with the Aperture
In addition to shutter speed (which determines exposure time), you can play around with the aperture size of your digital camera. There are two scenarios here. If you set a long exposure, try to use a small aperture to avoid overexposing any stationary lights. in the picture. On the other hand, if you set a short exposure, try using a larger aperture to avoid any motion in your shot.
When I started out taking digital photos at night, boy, did I have problems! The issue is that many digital cameras do not perform very well under low-light conditions. To take good night photos, there are some tricks you need to remember - so here are a few of them.
A photo of Hong Kong at night
Tip 1: Use Long Exposures
The key to successful night photography lies in a long exposure. We’re talking about exposures measured in seconds. When a long exposure is used, more light is allowed into the camera, allowing the details in your night photo to be captured.
The problem with using long exposures is that you may shake the camera, resulting in poor pictures. The way around this is to use a tripod. I prefer to install a tripod with a shutter-release cable to ensure that I don’t jolt the camera at all.
Tip 2: Take Control Shots
One problem with digital cameras is that there are always some pixels on the image sensor which are bad. When taking day photos, these defects are not discernible. However, they are pretty obvious in night photos. How do we correct these? Here’s a simple way – take a control shot, then use image editing to subtract out those bad pixels.
This is how it works. The next time you’re out to take night photos, go ahead and snap a picture of Scene A, as you normally would. Then, when it’s convenient, take a photo of the exact same Scene A again, but with the lens cap on.
Now you will have two images, one night shot and one control shot (with the hot pixels). Load them up in say, Paint Shop Pro. Switch to the control shot and select Edit and Copy from the menu. Next, switch to the night shot and paste the copied image as a new layer. Then, select the new layer and change the Blend Mode to Difference and click OK. You’ll get the correct night shot with the hot spots subtracted out.
Tip 3: Try to Capture Motion
With a long exposure, you have many creative options when it comes to photography. This includes capturing motion. For example, have you ever wondered how those professional photographers shoot pictures of trails of car lights as they zoom down the highway at night? It’s all due to long exposures. Try to keep this in mind the next time you’re taking a night photo – you don’t have to restrict yourself to still images.
Tip 4: Play with the Aperture
In addition to shutter speed (which determines exposure time), you can play around with the aperture size of your digital camera. There are two scenarios here. If you set a long exposure, try to use a small aperture to avoid overexposing any stationary lights. in the picture. On the other hand, if you set a short exposure, try using a larger aperture to avoid any motion in your shot.
Saturday, September 11, 2010
High Testosterone In Women Weight Gain
Because the fact of the matter is, most men don't find the model-thin look to be as attractive as a womanly hourglass shape. Although I worked as a model and was praised for my boniness, I would constantly catch my boyfriends checking out girls with more meat on their frames!
Grab A Copy Click here
But, things weren't all roses... at least not for me. The problem was that I never quite felt sexy enough to please him due to my lack of shape. I always wished I could have given him more to look at, more to grab onto.
When you're in love, any and everything seems perfect - but one fateful day would change my whole attitude and remind me of the cruel fact that I was way too skinny. My husband and I were at the mall and I was feeling pretty cute. But I wouldn't feel too confident for very long.
We were waiting by the elevators, and when it stopped in front of us I caught a glimpse of my reflection. There was another girl standing next to me, and she had a great figure. I, however, looked like a bag of bones. I couldn't believe that I just looked so terrible standing next to her!
Grab A Copy Click here
However, nature just didn't have that sexy hourglass shape in store for me, even though I had a baby. I went right back to my straight up-and-down shape and was still feeling self-conscious about the way my body looked.
As fate would have it, my firstborn child would teach me secrets about weight gain that I never would have thought of myself! (Well, him and a ton of research + experimentation).
Within less than two weeks after utilizing the first techniques, I was gaining weight faster than I even thought possible. But the best part is that my body actually looked good because I was doing it the healthy way - no double chins or love handles are caused by these methods!
But more than anything else, I was thrilled that I didn't have to go through the exhausting weight training that men go through to gain weight... plus I didn't want to look too muscular anyway!
Read more: http://www.articlesbase.com/beauty-articles/high-testosterone-in-women-weight-gain-3249217.html#ixzz1c1fxFafA
Under Creative Commons License: Attribution
Grab A Copy Click here
But, things weren't all roses... at least not for me. The problem was that I never quite felt sexy enough to please him due to my lack of shape. I always wished I could have given him more to look at, more to grab onto.
When you're in love, any and everything seems perfect - but one fateful day would change my whole attitude and remind me of the cruel fact that I was way too skinny. My husband and I were at the mall and I was feeling pretty cute. But I wouldn't feel too confident for very long.
We were waiting by the elevators, and when it stopped in front of us I caught a glimpse of my reflection. There was another girl standing next to me, and she had a great figure. I, however, looked like a bag of bones. I couldn't believe that I just looked so terrible standing next to her!
Grab A Copy Click here
However, nature just didn't have that sexy hourglass shape in store for me, even though I had a baby. I went right back to my straight up-and-down shape and was still feeling self-conscious about the way my body looked.
As fate would have it, my firstborn child would teach me secrets about weight gain that I never would have thought of myself! (Well, him and a ton of research + experimentation).
Within less than two weeks after utilizing the first techniques, I was gaining weight faster than I even thought possible. But the best part is that my body actually looked good because I was doing it the healthy way - no double chins or love handles are caused by these methods!
But more than anything else, I was thrilled that I didn't have to go through the exhausting weight training that men go through to gain weight... plus I didn't want to look too muscular anyway!
Read more: http://www.articlesbase.com/beauty-articles/high-testosterone-in-women-weight-gain-3249217.html#ixzz1c1fxFafA
Under Creative Commons License: Attribution
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