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].
coin counter. As it implements the best tech of the day, warranting a reputation as a state of the art machine, the 200200C has a holding capacity of up to 2000 coins and can sort up to 300 coins per minute.