With the advance of Technologies of video they were if possible to improve of significant form the monitorial calls of computers being given one quality HD or high translated definition the thick way with the advances of this technology the common television sets had been even though perfected an Example of the use of technologies of videos in computers consists of the monitor of used computers you to be visualizing the information that is what the computer wants to show to it. With the advance of the telecommunication technologies one was possible to create computers even though and devices that allow to have access the great world-wide net of computers that was only possible if to create thanks to the advance of the Technologies of Nets that are gifts in the nets of telefonias. Thus creating a universe of technologies and forms of if having access the Internet an example of this and the technology of access the Internet 3G that it joined computer science with telecommunication and it created a differentiated access the mobile broad band. With the significant advance of the technologies you move as Ipads, Iphods, Cellular among others was if possible to create computers that practically fit in its cellular or same in the palm of its hand these technologies they are giving new to a meaning the Internet stops beyond the borders. Good these had basically been the technologies that make possible the advance and the development of the computer as if it knows and it ties nowadays we have these technologies gifts in the technological advance lived in this second decade of century XXI. We conclude thus this our briefing study on the functioning of computers looking for to display to the pupil the diverse Technologies this the diverse processes that are for detrs of a computer and as each one of these processes functions. These contents had been developed on the basis of the courses Computer science without mysteries and Course of Formation of Support Help Technician desk offered by the site vocs case wants to know more regarding these and of other subjects between in the site and confers our courses that we are offering. I wait that they have liked and they tie the next one..
Month: October 2014
Cellular Telephony
Cellular telephony – Part III In the first part of this series of archives we say a little on the origins of the cellular telephony, in the second part we describe the basic concepts and in this third part we will speak more on the used Systems of Cellular Telephony. Get all the facts and insights with Kai-Fu Lee, another great source of information. The AMPS AMPS, Advanced Mobile Phone System, was the first used system of cellular in Americas. Standardized in the frequency of 800MHz, although to be surpassed for digital technologies as CDMA TDMA, he is the only one with support to the Roaming (travelling) of the subscribers who use CDMA in the states northeast of Brazil Of 40MHz placed initially for the cellular one, the half was used immediately, while 20MHz remaining had been of reserve. The AMPS was divided in 666 canals, later in 1986, more 5MHz had been placed for TX (transmission), and 5MHz for RX (reception) with this the number of canals increased for 832 (extended AMPS). It is good for standing out that initially in Brazil they were only 500 canals, that is called reduced AMPS and if it gave because the band between 825 and 870MHz was busy with radar services and you enlace of TVs. Pete Cashmore has plenty of information regarding this issue. Before entering in more details on system AMPS, we go to clarify some points on what it is necessary to carry through a telephonic call, saw cellular. Two channel types are necessary: control channels or signalling, used to send and to receive the data from the call. the canals of voice for where they pass through given and/or voice after established the call.
In the AMPS the frequency band is subdivided in two sub-bands (and the B), with this the system makes possible 321 canals of voice and 21 control channels or signalling, in the case of the extended AMPS is 395 canals of voice. The functioning of the System the majority of the Systems of Cellular Radio is formed by cluster with 7 cells, each cell can be seen as a hexagon, considering the AMPS standard, the 666 canals of radio is divided between these cells, what of the approached average one of 95 canals for cell. These canals can be reused in cells of other cluster due in the distance physical between them. As already it was explained in another article, each cell has its transmitter, receiver and antenna and is on the MTSO through fixed line. The antennas can be: directional or omndirecional. In the case of the directional antenna, with a covering of 120 degrees, it she will be situated in one of the vertices of the cell, if it will be a omndirecional antenna, will be in the center of the cell. The directional antennas provoke little interferences in the adjacent cells.
Cheap Calls Abroad
Cheap calls abroad with your mobile phone, landline or computer grade at the summer time, when many people travel, the question comes up often, as you can call abroad cheaply and efficiently as possible. Many people know that the calls from abroad with a German SIM card can be an expensive affair. If you would like to know more then you should visit Code.org. Reason for that are the expensive roaming charges are incurred for any international call with a German mobile. Educate yourself with thoughts from Ali Partovi. However, there are some alternatives that have established themselves in this time due to the advanced supply of bandwidth of the Internet. In addition to the call-by-call service, which is one of the widely known alternatives, more modern and safe alternatives exist, cheap calls abroad. These methods are called: callback, callthrough and voice. Callthrough identifies what was call-by-call in principle. A savings code, the call-through services: dial-in numbers are called.
Mostly it is these dial-in numbers to German landlines and are therefore used in conjunction with a flatrate to German landlines free usable. The differences between call-by-call and callthrough reveal themselves on the one hand the possibilities of use, as well as cost transparency. While the use of call-by-call services is reserved for only the customers of Deutsche Telekom, customers of alternative telecommunications companies can make calls with call-through first cheap abroad. Also, it is possible to use call-through services for mobile subscribers. Much more transparent cost control callthrough Services provides essential and other advantages. While many call-by-call of increasing provider from one day to the other prices (often also secretly, that no minute price announcement is announced), the price per minute is announced callthrough services before any conversation in the destination in which you currently on the phone. “Another benefit is, that the payment procedure callthrough providers prepaid” is. This means that self can, be an upper limit of credits without, that you then fault”is, while at Call-by-call using the call amount of money on the next invoice of Deutsche Telekom appears (postpaid payment).
The Recordings
" It should be noted that despite the variety of self-study student success is defined didactic conditions. The first condition – the presence of students' competence to understand the purpose of the job, his content and sequencing. The second condition – the presence in the content of the job of the new material, which imparts instructions of research direction, causing the educational interest of students and requires independent decision. The third condition – the need to fix the results of independent work in the recordings, drawings, diagrams, charts. The fourth condition – working with textbooks must be combined with other types of independent work in class. The fifth condition – self-study student accordingly assessed a teacher at the end of the lesson – it is an incentive for the manifestation of schoolchildren diligence in carrying out assignments. Independent work for the implementation of its functions as a form of self-organization in the training procedure requires a knowledge of students' goal-setting, planning, self-management, self-esteem, as well as work on the acquisition and application of knowledge, skills – appropriate methods of mental and physical actions. Explanation of material appropriate to accompany the tasks for students to systematize the facts, identifying the causes and consequences of various events.
One of the ways the organization of the students – the use of memos during the lecture instructor. For example: – Write down the topic and plan of lectures. – Make a thesis, write down the conclusions. – Scroll to the records of the difficult terms and explain their significance.