There are 2 common tests performed: amniocentesis and chorionic villus sampling. ï· Amniocentesis is generally performed at between 14 and 18 weeks gestation for genetic testing. It is performed by withdrawing a sample of amniotic fluid from the mother through a needle. inserted into the amniotic sac.
Daemon is a process that runs in the background and performs a specified operation at predefined times or in response to certain events. The term daemon is a UNIX term, though many other operating systems provide support for daemons, though they're sometimes called other names. Windows, for example, refers to daemons as System Agents and services. Typical daemon processes include print spoolers, e-mail handlers, and other programs that perform administrative tasks for the operating system. The term comes from Greek mythology, where daemons were guardian spirits.
The init is a daemon process which starts as soon as the computer starts and continue running till, it is shutdown. In-fact init is the first process that starts when a computer boots, making it the parent of all other running processes directly or indirectly and hence typically it is assigned â pid=1 â.