The STS-1 signaling level supports ____ frames per second.?

What is not correct about system calls?

a. A system call allows a user process to assess and execute operating system functions inside the kernel. b. User programs use system calls to invoke operating system services c. In terms of performance, using system calls is better than using procedure calls d. Every system call involves overhead due to context switch

________ is the newest operating system for Apple desktop and laptop computers

Fill in the blank(s) with correct word