Blood counting machines aspirate a very small amount of the specimen through narrow tubing followed by an aperture and a laser flow cell. Laser eye sensors count the number of cells passing through the aperature, and can identify them; this is flow cytometry.
In computing, Extract, Transform and Load (ETL) refers to a process in database usage and especially in data warehousing that performs: Data extraction â extracts data from homogeneous or heterogeneous data sources.
ACL. Short for Access Control List, an ACL is a list containing one or more ACE which are used by an operating system or other network device to appropriately restrict the rights users have. For example, an ACL may specify if a user or the users group have access to a file or folder on that computer or network.