"Available memory" can be utilized by the OS if the need arises, so the most accurate measure of "free" RAM is to add together "free memory" and "available memory".
Some acceptable alternative, that doesn't involve having a computer of a rather insecure mobile phone, will need to be devised before phasing out cheques completely.
"I'd like to tell the CEO before I take the job that we have to stop referring to all these people as 'IT people' or I'm not going to be able to attract and retain the top-tier talent that is required."
It strikes me that he is not the right person for this management job if he can't retain top-tier talent because of a job title. The good people don't care what their job-title is, just what the work involves. And good managers have better things to care about than job-titles.
In a consumer society there are inevitably two kinds of slaves: the prisoners of addiction and the prisoners of envy.