What key factor differentiates an MIS from a DSS$?$

$1)$ A DSS contains models that use information to make decisions.

$2)$ A DSS is often Web$-$based, whereas an MIS is restricted to company computers for security reasons.

$3)$ A DSS consists of software and hardware, whereas an MIS is only software apps.

$4)$ A DSS is only a software app, whereas an MIS consists of hardware and software.