Brain Computer Interfaces Term Paper Example | Topics and Well Written Essays - 500 words

Brain Computer Interfaces - Term Paper Example entists have always speculated that EEG might prove helpful for a completely different kind of purpose, which is infact another way of sending messages to the brain, and instructions to the outside world. Until this discovery, the control and communication system solely depended on the muscles and nerves. But with EEG, communication with out the use of muscles and nerves is achieved with the help of brain computer interface. â€Å"Brain computer Interfaces a new communication and control option for individuals for whom convenient options are ineffective.†Ã‚   It provides a way of communication and control for those people who are disabled, for whom the normal way of communication is literally impossible. The goal of the BCI system is to listening to the brain, understand its intent, and then to materialize that intent without the involvement of muscles. This is the reason why BCI s is also termed as â€Å"mind reading technology† (Wolpaw, R & Birbaumer, Niels p.603). The BCI system reads the â€Å"Electrophysiological signals reflecting brain activity, and they are acquired from the scalp, cortical surface or from within the brain† (Wolpaw, R & Birbaumer, Niels) . They are transferred to measure certain signals which help in knowing the intent of the user. These signals are converted into commands. These commands, in turn, fulfil the user intent like operating a machine, speaking something, walking in a particular direction etc. The interfaces which are Invasive are directly implanted in the brain. These are normally used in blind or paralyzed patients. The interfaces which are semi invasive are implanted inside the brain but not within the brain of an individual. Non invasive interfaces â€Å"record the brain signals through a neuro-imaging procedure† (Brain Computer Interfaces). Brain Computer Interfaces still have a long way to go. Researches are being conducted to understand brain functioning and to map it efficiently to an electronic device. There is no doubt

Systems anlysis Essay Example | Topics and Well Written Essays - 1750 words

Systems anlysis - Essay Example This paper is divided into two sections. In the first section it discusses about point of sale systems and second section presents an analysis of a communication system. For this paper, I have chosen mobile communication system, which are increasingly used in every walk of life. Part1: Point of Sale (POS) Systems Point of Sale (or simply POS) system is widely used in retail shops or stores, normally placed at the checkout/cashier counter in the store, or a place where such transactions can take place in this type of environment. Basically, traditional cash registers are replaced with a computerized POS terminal. However, it is a great deal more complex than the cash registers for the reason that the POS system can have the capability to keep track of orders placed by the customers, carry out transactions via debit and credit cards. At the present, point of sale systems have the capability to connect to other systems in a network, and are widely used to deal with inventory. Normally, a point of sale system is based on a personal computer, which encompasses I/O devices and application-specific programs for the specific surroundings in which it will work. Additionally, there are a wide variety of POS systems which are used in different environments. The functionality and processed included with a POS system depends on the nature and functionality of the business. For instance, a point of sale system for a restaurant should contain a list of all menu items which are stored in a database. In addition, this database will be used by the POS system operator to query for information in many ways. In fact, a large number of business organizations and industries use POS terminals that have a point of sale for instance a help desk, comprising lodging, restaurants, museums, and entertainment. In the past few years there have been huge developments in the field of information technology. As the Internet is increasingly used in every walk of life in the same way, point of sal e terminals is now supported through the Internet, which provide an excellent support for remote training and operations management, and keeps track of inventory all through geographically-dispersed locations (Rouse, 2011; POSmatic, Inc., 2013). In addition, POS terminals can be applied to physical POS software and hardware comprising however not limited to touchscreen display, electronic cash register systems, barcode scanners, scales, receipt printers and pole displays. As discussed above, POS systems offer a large number of advantages for all the businesses and industries. The uses and applications of POS systems vary from business to business. Different organizations use different POS systems. In fact, at the present POS systems are used in a large number of different organizations and industries varying from hotels, restaurants and hospitality businesses, casinos, nail/beauty salons, stadiums, and the most important area of its implementation is the retail environments. In simp le words, if something can be traded for financial rate a POS System can be utilized (POSmatic, Inc., 2013; Rouse, 2011). An organization can get a number of advantages of POS systems. Some of the major advantages of POS systems are outlined below: Decrease Shrinkage: In view of the fact that inventory rates and quantities can be maintained in a synchronized manner, hence getting an understanding of shrinkage becomes trouble free. In addition, today’s point of sale systems encompasses a wide variety of functions regarding inventory and receiving. In fact, if