Given variables first and last, each of which is associated with a str, representing a first and a last name, respectively. Writ
e an expression whose value is a str that is a full name of the form "Last, First". So, if first were associated with "alan" and last with "turing", then your expression would be "Turing,Alan". (Note the capitalization! Note: no spaces!) And if first and last were "Florean" and "fortescue" respectively, then your expression's value would be "Fortescue,Florean".
The system software is the software which has system need to running Without the system software the computer system will not start and work simply means to interact with the computer system we need system software.
Briley needs system software to connects the different parts and input-output devices, and it provides the ensuring that the computer system has a power supply available.
So without the System software, Briley will not interact with the computer system.