4 terms
An application sandbox confines an installed program to a restricted environment so it can reach only the files, devices and services it was granted.
An installer is a program or package that places software files on a computer, configures the system for them and records the installation for later removal.
A package manager is a tool that installs, updates and removes software packages automatically, resolving dependencies from trusted repositories.
A software package is an archive of program files plus metadata on version, dependencies and install steps that a package manager uses to install software.