Which fundamental security model is composed of a set of generic rights and a finite set of commands

The fourth generation of computers emerged between 1970s and 1980s. which technological advancement brought about this generation of computers? which computer architecture was used most in this generation?

The camera still is bad even with the new iphone xr and especially in low light it is even worst because you can see the pixels more if its in low light. if all you apple customers want apple to fix this then lets fill there feedback with complaints about the

Your mom wants to purchase a laptop computer. she said she wants her new computer to be able to play her dvds so she can listen to music and wants to know what type of optical drives will play her disk. which type of drive should she look for?