OPERATING SYSTEMS FOR COMPUTERS
COMPUTER OPERATING SYSTEMS
|
Question
[CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
|
|
|
Single User
|
|
|
Multiuser
|
|
|
Multi processing
|
|
|
Single processing
|
Detailed explanation-1: -Linux is the leading operating system on servers (over 96.4% of the top 1 million web servers’ operating systems are Linux), leads other big iron systems such as mainframe computers, and is used on all of the world’s 500 fastest supercomputers (since November 2017, having gradually displaced all competitors).
Detailed explanation-2: -In addition to z/OS, four other operating systems dominate mainframe usage: z/VM, z/VSE™, Linux for System z®, and z/TPF. z/OS, a widely used mainframe operating system, is designed to offer a stable, secure, and continuously available environment for applications running on the mainframe.
Detailed explanation-3: -A multitasking operating system allows a single user to work on two or more programs that reside in memory at the same time.
Detailed explanation-4: -Although most supercomputers use a Linux-based operating system, each manufacturer optimizes its own Linux derivative for peak hardware performance.