Question: What is software and explain the five types of software
Explanation: The system software which is controlled and managed by the use of set of instructions and programs is called software.
Ex: Windows 7/8/10/xp etc...
the types of software are'
system software and application software
Android.
CentOS.
iOS.
Linux.
Mac OS.
MS Windows.
Ubuntu.
Unix.
Answer:
1) List
2) Dictionary
3) Tuple
Explanation:
A list uses square brackets. It is used to store multiple items in just one variable. They are usually changeable and give room for duplicates. You use append to add to the collection.
A dictionary uses curly brackets. You use update to add to the collection. A dictionary is created by placing the elements in curly brackets and separating them with a comma. It is changeable and it does not give room for duplicates.
A tuple uses parentheses. You cannot change it once you create it. It is an ordered list of elements that is finite and can also store multiple items in one variable.
Answer: /sbin
Explanation:
In Linux, FHS describes the directory content and the way in which Operating System files are displayed to the user.
/sbin is a directory that contains executable programs. s/bin is the short form of system binaries. System binaries require root rights to perform specific tasks. /sbin contains binaries that are crucial to boot the system and also to recover and restore the system. /bin directory also contains the commands to boot the system but the main difference between both is that /sbin programs can only be executed by the root user. Examples are fdisk, fsck, root,halt, init, grub, ifconfig.
Answer:
A real-time operating system is an operating system designed to support real-time applications that, usually without buffer delays, process data as it comes in. A real-time system is a time-bound system that has fixed, well defined time constraints.
