When a function uses a mixture of parameters with and without default arguments,
the parameters with default arguments must be defined

after the required parameters.

Explanation:

Default arguments in a function should be defined after the required parameters because the required parameters are necessary but default arguments are not. If mixed parameters are allowed it will be very hard for the compiler to to judge which value matches which argument so there will be syntax error.

that without the operating systems you would have to control and synchronize computer hardware.

create an interactive presentation of ms powerpoint or any other presentation software in which define the product's characteristics, benefits, why people consider it, etc.