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].
15 digits of whole dollars, plus four decimal places (hundredths of a cent). Counter. (Access 1 and 2 only.) A Long integer type, automatically assigned by Access. To look up a Counter in a one-to-many relationship, use a Long for the field type in the related table. AutoNumber. (Access 95 onwards.) The AutoNumber replaces the Counter as an automatically assigned number. It can be either a Long integer type, or a ReplicationID (see below), and can be sequential or random.