Technology

If your mouse connect and reconnect randomly make sure to do the following: First: put your mouse USB in another USB. Second: make sure that your mouse is clean from the bottom. Third: go to control panel> System and Security then in the left side choose Hardware and Sound and under Devices and Printers choose Device Manager under Universal Serial Bus Controller double click the first USB Root Hub and choose the Power management and unchecked the " Allow The Computer to turn off this device to save power" . Uncheck the allow the computer to turn off this device to save power Fourth: update your driver as follow: Update the drivers

 What is DTMF? It is acronym for Dual Tone Multi-Frequency , also known as Touch Tone. It is a method, used by the telephone system to communicate the pressed keys when dialing. Each key represents a digit or a character and generates two distinct tones - a high frequency tone and a low frequency tone – when pressed. DTMF allows navigation of voice menus and other advanced calling services. It is also used for control purposes, such as an automatic bill-paying service, or remote control of appliances, such as a telephone answering machine. DTMF tones are sometimes used in caller ID systems to transfer the caller ID information [1]. How Does the DTMF work? The DTMF has a keypad which is laid out in a 4×4 matrix in which each row represents a low frequency and each column represents a high frequency [2]. Here are the signals you send when you press your Touch-tone phone keys [3]: DTMF low and high frequency   Row and Column Keypad When you press the buttons

Accessing a JSP page could be considered the same as accessing a Web service. If you think about it, calling a JSP page is a large method packaged in the form of a servlet, which sends back character output. The biggest difference is in the packaging. A Web service defines an interface through which it's possible to define exactly the data being sent to and from the Web service.  The JSP page, on the other hand, just hands back a large character text stream in the HTTP wrapper. This makes it hard to parse a JSP result for finer work. This makes a Web service easier to use programmatically over a straight JSP page. Whenever fine control of the data being sent over a HTTP request is required, it is time to use a Web service. The next fact to consider is state. One thing JSP and servlets give the programmer is a concept of state: application, session, page, and so on. A service isn't as tied to the concept of state. In fact, keeping a Web service stateless