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Sunday, July 1, 2012

Samsung I9300 Galaxy S III

Are you looking for a new smart phone? If your answer is yes,then you should definitely take a look at this Samsung brand new gadget. This model has practically everything what you wish! Let`s begin with platform: S III has brand new Android v4.0 operating system and Quad-core 1.4 GHz Cortex-A9 processor. Its separated graphic core is designed for showing pictures on huge Super AMOLED 4.8 inches screen. This type of screen can show up to 16 million colors. "How so many?"-you wonder. The answer is pretty simple if you understand how electronics works. Modern electronic gadgets are based on capacitors-electric cells which can be in charged state (1) or in discharged state (0). Those electric cells in electronics are called "bit". Colors in this case are 24 bit- 8 bit for red,8 bit for green,8 bit for blue. Every of these cells can be charged or discharged, so you got a huge number of combinations of colors that can be shown on screen. Pretty simple,isn`t it? This phone has also a 1 GB of RAM. Do you know what is RAM memory? RAM memory,or Random Access memory is type of working memory which is very important for functioning of phone. Structure of this memory is also based on capacitors-bits grouped in groups of 8. One this group is called "byte"-the smallest memory size in electronics. One KB (kilobyte) has 1000 bytes,one MB (megabyte) has 1000 KB,and one GB (gigabyte) has 1000 MB. Now you understand how much memory is that! This phone also has 8 Mp camera,autofocus,LED flash,and can film a full HD movie. You also have a full Internet connection over WiFi, and there is option that turns your phone into a Internet sharing device. I mentioned only a small part of hardware of this gadget and gave my best to simplify the way of functioning of memory and screen. There will be more soon!

Friday, June 29, 2012

Speakers and microphones

These sound-output gadgets are transformed drastically from time they were invented. They exist thanks to humans knowing of power of electromagnetic induction. EM induction is based on the following: when electric conductor moves through magnetic field,the electric current is inducted in him. This is happening because of influence of Lorenz force: this force affects any charged particle in movement and tends to turn it from primary direction of movement. Because electric conductor has a huge number of electrons,Lorenz force affects all of them,and forces them to move directional,which is in fact electric current. That is important when we talk about microphones,because this process is happening there constantly. Our voice moves the membrane which leads to inducting of variable current in electric coil which is attached on membrane. Inside of speaker,there are electric coil on which is attached a membrane of speaker and a permanent magnet. When we let a variable electric current through the coil,the membrane will oscillate in accordance with oscillation of current. Why? Because current in movement inducts magnetic field. Magnetic field of permanent magnet and inducted magnetic field interact,which leads to oscillations of membrane. That is principle of functioning of speaker. Nowadays,we have a huge variety of speakers,and it is very hard to decide which one to buy. My advice: buy a 5.1 system of speakers,because you will have a 3D expirience when you watch some movie or play games on computer. Another advice: buy a speakers with wooden case,the sound which they produce is very deep and more natural than other speakers. I think I mentioned the most important. If you have any questions about these gadgets,mail me or leave a comment.

Computers


Nowadays,these gadgets are practically affordable to everybody. They evolved from huge monsters,big like a whole room,to small lap-tops which we can take everywhere. Computers which we have today have powerful CPU`s,mighty graphic cores and a lot of RAM memory. They are capable to do the most complicated mathematical calculations which are necessary for functioning systems in factories and many other facilities. CPU`s are on of the most importat parts of computers. They are performing mathematical calculations and giving orders to other components of computer. Its power is measured in GHz. Lets say a few words about graphic cards. They also have a separated cores,like a CPU,but these are charged for performing graphic tasks: they are processing informations which should be shown on monitor or any other type of screen. They are irreplaceable for gamers. These parts are very expencive,but I have a few advices. First of all, look for a CPU which is enough for your needs. Do not waste your money on expencive CPU`s which can`t demonstrate its real power,because you don`t use them for what they are designed for. Example: you bought brand new Intel Quad core processor which costs a few hundred dollars and what`s the purpose you use it for listening to music and surfing on Internet? You wasted your money. Another advice: search on some forums and talk to people about their experiences with CPU you want to buy. You will for sure find a CPU just for you!

Thursday, June 28, 2012

Cell phones

Do you have a headaches when you need to buy some gadget? I`m sure you do,especially when you need to buy some piece of electronic equipment,like a cell phone. These little devices are become irreplaceable part of our lives. Every businessman make at least one phone call per day and he can`t imagine life without this little gadget. Nowadays,we have a huge variety of cell phones so it is really hard to decide which of them to buy. First of all,we should know what we need. A man who works on the construction site sure will not have a touch-screen phone with Internet conection. He needs powerfull phone which can stand kicks and drops from heights. And also a businessman,he sure will not buy a phone which is not elegant and suitable for his business. So,how to solve these problems? -Very easy I will give you some advices about shopping a cell phone. First of all,you should know what you need and know your budget limitations. Do not waste your money on some expensive smart phone which you will not know how to use. First read about it on some forum and ask people about their experiences. Read also some tests and you will know if that phone is one which you look for. I hope i helped!

TV`s

Many people can`t even imagine every-day life without TV. That gadget is source of fun to every modern family. You tell me: do you know any man who doesn`t like to watch a football game on a big-screen TV? I think you don`t. One more question: isn`t it beautiful when you see a smile of your child when his/her favourite cartoon is playing on TV? I think it is. This gadget also plays a big role in teenagers life. They couldn`t imagine their lives without music and fashon channels. So,why shouldn`t we make this gadget affordable to everybody? Listen to my advices. If you have an old "box" TV, I advice you to wait just a little bit with buying a new one. Let`s take an example here in Serbia. Digital signal should become a standard very soon,so and if you have a huge box TV, you will get an receiver device for converting digital into an analog signal. You will still be able to watch TV, and it`s very possible that you will get a receiver from your provider for free,because of process of digitalization. Soon in future,price of flat screen TV`s is going to drop,because they are becoming standard. So,do not hurry! (my advice) If you have another opinion,leave a comment!

Welcome!

Hi people! First of all,I want to say: "Welcome and I hope you will enjoy here". I`m new in "blogging",so if there is anything that,in your opinion,is wrong on my blog,please text me. I will accept every advice. Soon,I will post about many electronic devices and gadgets without which we can`t imagine our life. I will also give you advices for smart shopping and how to find a gadget which is designed just for you! I hope you will like my blog,thank you for reading!