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].
Customer service counters are ansaction-based work areas tr where information is shared and/or. transactions occur between people on both sides of a work surface. The design of the space must allow for. accessibility for customers whileincor porating critical workstation design elements to keep staff safe, i.e.