LinkObject["name", n] is an object that represents an active MathLink connection for functions such as LinkRead and LinkWrite.
LinkConnect, LinkCreate, LinkLaunch and Install all return LinkObject objects.
The integer n is a serial number used to distinguish links with the same name.
name is typically the name of an external program, or an internet TCP specification of the form port@host.
See Section 2.13.2 and Section 2.13.9.
See also: Links, LinkReadyQ, InputStream.
New in Version 3.