Which of the following statement is/are false?

1. The processor has direct access to both primary and secondary memory
2. Primary memory stores the active instructions and data for the program being executed on the process
3. Secondary memory is used as a backup memory
4. Memory system is implemented on a single-level memory

Choose the correct answer from the options given below:

Statement 1:

The processor has direct access to primary memory only.

Secondary memory is accessed through input/output operations.

So, statement 1 is false.

Statement 2:

Primary memory stores active instructions and data required for the currently executing program.

So, statement 2 is true.

Statement 3:

Secondary memory is used for permanent storage and backup.

So, statement 3 is true.

Statement 4:

Memory system is not single-level.

It is implemented as a hierarchy, such as:

Registers, Cache, Main Memory, Secondary Memory

So, statement 4 is false.

Therefore, false statements are:

$1$ and $4$