I have scoured for 2 hours now across the internet, I have found courses with modules on software constructs but no clear definition only hints as to what one is.
As far as I understand the definition it is an object that can be defined with a purpose for example a TCP/IP connection uses a Port which is a Software construct.
Can anyone refer me to a full definition or give a more robust one?
Read this: http://en.wikipedia.org/wiki/Construct_(philosophy_of_science)
Then replace "Ideal" with "Software".
TCP is a protocol. The software that implements this protocol is a software construct.
IP is a protocol. The software that implements this protocol is a software construct.
IP uses IP addresses. These are a software construct. An IP Address has (almost) no physical reality, it's a relationship between a host and a network. It is written in a file and the state of some magnetic media is a physical manifestation of the software construct.
IP connections use a Port. These are a software construct An IP Port is a relationship between messages, buffers, sending software and receiving software. It has (almost) no physical reality; it's a state that will be true of memory components that correctly implement the IP protocol.
Indeed. All Software can be called examples of Software Construct. Software itself is an idealization, so trying to subdivide "Construct" and "Software Constuct" is rather silly. They're all idealizations.
Physical manifestations of software is the state of bits on magnetic disks, optical CD's or in semiconductor memory.