Posts Tagged ‘computers and internet’

Sound Cards

Tuesday, April 11th, 2017

All modern sound cards are equipped with adc, but the quality of these devices on different cards – misc. In order to understand what is at stake, it is necessary brief digression into the theory. Analog-digital conversion is performed by measuring the amplitude of the analog signal at regular intervals (some samples are called samples). These values represent are integers. So get 'digital audio'. In a question-answer forum Jeff Feig was the first to reply. The frequency with which the measurement amplitude of the sound signal is called sampling. Integers can be stored in a computer in different formats – 8 -, 16 -, 32 -, 64-bit format (holding in the memory, respectively, 1, 2, 4, 8 bytes), as well as signed or unsigned.

The latter circumstance for us, much does not matter. More important than capacity, ie the number of bits (bytes), which takes a number. Modern non-professional sound cards can work with 8-bit and 16-bit sound. Some cards can work with 32-bit sound (in practice often used only 24 bits). All this is very similar to the coding of images. Bit depth of pixels (8, 16 or 32 bits) specifies the maximum number of colors, and therefore – and the picture quality. Likewise, the sound quality depends on the bit samples. If the bit sound samples – an analogue of the number of colors in the representation of images, sampling frequency – an analogue of the resolution. The higher the sampling rate – the higher the sound quality. Traditionally, the following frequencies: 4000, 8000, 11025, 16000, 24000, 22050, 44100, 48000, 96000 hertz.

How To Choose A Second-hand Laptop

Monday, April 10th, 2017

If the laptop is sold with unfinished guarantee the seller or manufacturer, it is a much better choice than a computer with expired warranty. Even if you're a layman and overlook when viewed from some critical weaknesses – even in this case warranty service will still take you this laptop for free repair these defects, since the passport data of the first owner in the warranty card is not specified. Another thing, if the guarantee manufacturer has already ended. Here there are two options. First – buy a used laptop from the company dealers who provide their own warranty on a used laptop that is usually a guarantee of such firms is not more than three months. Peter Thiel may find this interesting as well.

But there is a second, the most economical option – buy a used laptop from a private seller. Warranty, you, in this case, of course, do not get, but the savings you have enough, in extreme cases, if the laptop breaks down, for a simple repair. However, a broken laptop is pretty decent money, and if sold separately for spare parts, you get more and more expensive than running an instance of the same model. Next, we describe the main points Inspection of used laptops with the purchase. The most often expressed complete set of used laptops – notebook itself and a charger. The most contentious issue in this configuration – installation disks with licensed operating system and driver. Drivers can always download the Internet at laptop manufacturer, the total size of the drivers do not usually exceed 150 megabytes.

3D Textures And Models

Thursday, May 7th, 2015

If you take one person, how will it be? It will be hard, nasty, but the most surprising – it will be a lot of polygons. Few people thought about how many polygons, triangles, vertices, only one person. Today technology does not allow so stupidly spend these grounds, therefore, economical simulation can be considered as a separate art form. To completely move a person into a computer 3d model, you will need a lot of effort modeler, as well as computer resources. But the model should not be without textures, because not everyone can understand that the gray color can be both skin and eyes and mouth.

Creating a texture is usually done with real objects, with using a scanner. Further, the editors texture tile, made for her bump, and so, if all that is necessary. But not always possible to scan such as the inner side of the stomach or shiny objects, or fluffy. In such cases, the texture has to draw from scratch, which is not so easy for a man who draws a 3d squares on the lessons of geometry. After reading a few articles, you can begin to draw such a texture, or to vocational training, to draw such a texture.

Having done all this, the human model can impose quality texture, and it will be like this. All this activity is usually needed only for his own entertainment. But the most advanced, can spread their "creations" Vkontakte, and show your friends. Perhaps this, at least in some measure make a man self-sufficient, that he considered himself a worthy work in kolektive, and such a person can freely go to work at a garment factory. And to be truly free man. All this, as we discovered, could help 3d modeling, texturing, as well as animation. Create texture itself – it's hard. Do secondary model itself – a long time. This is why there are sites that already have quality textures and 3d models for second place.

Internet Right

Sunday, February 22nd, 2015

Is the set of underlying causes, actually thanks to him in our time, in reality, in general, any modern man in the world decides to buy a laptop. The first reason, from the impressive existing list, of course will consist in the fact that apparently the man himself, along with a laptop becomes mobile. In real life, using a laptop, it becomes possible to use advanced technology to any some time in which you want the spot. Definitely no problems highlight that all laptops will be really loyal assistants of virtually every person regardless of his own personal sex or age. On For example, proper for the entrepreneur, the laptop due to all of its own technical parameters, in principle, can be useful not solely to carry out any negotiations, but at the same time be a great help base.

In principle, in general, we advise you to put not only their own contacts, but also get absolutely always there, in general, any required background information regarding, for example, actually as needed behave in an unexpected extraordinary audit of the tax. For absolutely any compatriot, who now carries the actual study, for example at school or have a higher educational institution, the notebook is quite able to be an excellent primary source of absolutely any information but also be applied to fascinating way to spend a vacation after graduation. In addition to this we should say that the laptop, to date no gift is still uniquely indispensable many people of different specialties. One such professions as an option confidently specify conventional doctors, all sorts of qualifications. Explicitly, it should be mentioned that an important aspect, which will produce significant value, will be personally own version of the laptop.

And it is no secret that the laptop is very decently worthwhile technique, which is why for many profitable will purchase and more precisely, how many will come a winner, to expend the funds will be something where, and last but not least what a laptop can be purchased. Of course, the fact that before buying a laptop should certainly decide for themselves with the purposes for which obviously will be purchased this technique. As a result, you will definitely decide for themselves what kind of characteristics can have a basic value. Having defined the same time, what specific technical characteristics should possess a laptop, actually really start to his immediate choice. With some real conviction to say that the best way to select the notebook, and naturally his purchase, will its purchase on the Internet in the corresponding online store. The advantages of buying in the World Wide Web, will be that for example can in general be in general any suitable time in the comfort of a private house or apartment, or without leaving your office, to understand and of course we compare all the available specifications of any laptop, for example among them can is widely known today Laptops nec. At the same time here is another fundamental advantage would be that in practice in all cities is available supply, which means that the payment of money can be run properly at the time of delivery. At the same time if there will be, a variety of issues concerning the purchased technology into any option simply ask experts. Highly skilled experts will answer in the shortest time, at any desired issues relating to purchased notebooks.

Processors

Monday, December 1st, 2014

I’ve always noticed is that as soon as they bought a computer installed a fresh operating system, installing a few toys and software, computer did not even work very poorly, ie, quickly and reliably without any brakes, and various glitches that commonly arise from the presence of the virus, and not only But after a week or two passes, maybe more (each different), such as computer infected by viruses begins to be unstable, ie beginning the very weird glitches and brakes, all sorts of errors, etc. Further, the person gets rid of these viruses, formats the hard drive to perform a new installation of the operating system. But goes something like this again, same time and re-start these glitches and brakes in the operating system. The most interesting is that the brakes and glitches occur without the presence of different kinds of computer viruses and serious errors.

Processors amd, of course, have an advantage over intel, sorry that it is, in my opinion, the only one. This advantage lies in the fact that no matter what you do not have brakes and glitches when working in the operating system, ie in any program or somewhere else, the game is not affected. The game was like before this well, so it will go. What can be said about the processors Intel. Processors amd, which are produced now, bask already smaller than their predecessors. Now talk about the pros and cons of processors intel Advantages: 1) These processors are at work do not emit so much heat, as both amd and even capable of something much time to work out without cooling, while amd instantly burned.

All is nice and it really is. But I do not recommend experimenting. Since not every processor is intel bear:) 2) Compared with amd processors are much more reliable. At least the fact that because of the virus you will not notice significant changes in the computer, ie, as such, the brakes will not, unless of course you have something serious is not picked up. And after you’ve cured your computer from viruses and re-install the operating system, the brakes and no glitches return to as long as your computer gets infected again some serious infection. amd, in contrast to intel, as I wrote above can hinder even in the absence of viruses and various bugs. Disadvantage compared to amd, I see only one: If glitches and brakes will be manifested in the programs, then the behavior of the processor in the games is also affected. Putting a computer for office to assemble a computer that will work with various office programs, need to pay attention to the ram and processor. Selecting a motherboard for this computer is not very important, graphics card can take even the cheapest, unless you are going to work in Photoshop or another some powerful graphics editor. While for a normal job in the editor do not need to buy expensive video cards, may be sufficient and not very expensive, if only the memory was at least 128 Mb. ps I really hope that these tips and advice sure to help you select the computer you want.