Ventilators are typically used by ALS patients having difficulty breathing. There are several kinds of non-invasive ventilators, such as small devices that fit over the nose and mouth. Patients may also opt for a tracheostomy, a surgical procedure in which a tube is placed into the throat.
3. Counters. A counter is a digital sequential logic device that will go through a certain predefined states (for example counting up or down) based on the application of the input pulses. They are utilized in almost all computers and digital electronics systems [1].
A cash register is a necessity for any product-based business that performs numerous transactions on a daily basis. Depending on a businessâs needs, a cash register can range from basic, with limited features, to a comprehensive point of sale (POS) system with a long list of features.