Computers have the IT department, Homo sapiens have HR as it is now known; it used to be called staffing or personnel, or in the case of many SMEs, the first name of the nice, middle-aged secretary who did all the paperwork that hiring, firing, sick notes and maternity leave involved.
In her case counselling was a box of Kleenex from petty cash, a nice cup of tea and occasionally a mint imperial.
As the name implies the department deals with human resources, or human capital, manpower, talent, labour or personnel; sometimes they actually use the word people.
If it is done well, HR can be a game-changer, a blessing to; done badly it can be the equivalent of a career or emotional landmine for an employee at a difficult or vulnerable time in their lives and a costly mistake for a business in terms of lost productivity or litigation. That is how important good HR is and why those people who do it well can command ever-increasing sums as they progress along their own career paths.