What was the early standard Linux file system?

Answer the following statements true (T) or false (F)

1) Linux is a multiuser OS based on UNIX. 2) Typically, more complex embedded systems do not include an OS. 3) An antilock braking system in a car is an example of an embedded system. 4) General-purpose computer systems far outnumber embedded systems. 5) A simple embedded system, with simple functionality, may be controlled by a special-purpose program or set of programs with no other software.

One of the disadvantages of the infix notation is that _____.

A. it is hard for humans to understand B. some expressions can evaluate to two different values C. not all algebraic expressions can be represented with it D. we need to use parentheses to control the evaluation of the operators