System Software
First, I would like to start with answering the questions from the book.

Question 1 Which software is included in system software?

System software is the programs that run the computer and works
to instruct the computer between application software and hardware devices. The following includes those applications that make up system software. The operating system, which manages your hardware, CPU, memory and storage devices and the utility programs, which is a set of programs that maintains the efficiency of your computer, such as file maintenance and file compression. These keep your computer running like the well-oiled machine it should be.

Question 2 What are the different kinds of operating systems? And Question 3 What are the most common operating systems?

Without realizing it, I combined these questions into one answer. So here it is. Operating systems can be categorized by the type of device in which they are installed. This can include robots, specialized equipment, mainframes, network computers, mobile devices and personal computers. The first type is called a Real-time operating system (RTOS). This is a system required to complete repetitive tasks in an exact amount of time. They can also be referred to as embedded systems, which do not need much user interaction. The devices that these are found in must perform regimented, repetitive tasks such as, scientific measurement instruments. The second type is a multi user operating system (a.k.a. Network operating system). This is the type of system we use at work. It is one computer system that functions for multiple users at one time. It allows for communication, processing information, printing to various areas within the organization, and use by several persons at the same time, with all information based in a mainframe or server, which everyone has access to. Third, the RTOS in mobile phones is more user oriented. This requires total user interaction. Now, mobile phones have access to Internet, email, text messaging, and downloading and listening to music. These are called productivity features, enabling the user to run more than one application at the same time. Finally are the systems for personal computers. These can differ depending on the user preference and task need. Most systems come with Windows and there are a lot of versions to this. They are updated yearly. Sometimes, they come out with Service packs to upgrade your system and prevent glitches which they found after usage. Now Mac has its own operating system. They created the first commercially available system. Operating systems are not really interchangeable. You should not try to change your operating system since Mac would not understand the Windows system. Mac does have a utility called Boot Camp which allows you to run Windows applications on their computers. There is also a system called Linux. Linux is open and available to anyone and can be tweaked to meet virtually any need. Android is Linux based.

What is Jing software?
The official explanation is:
Jing is the perfect way to enhance your fast-paced online conversations. You can capture an image of what you see on your computer screen, record up to 5 minutes of onscreen video, use Jing to record your feedback as you grade papers, or take a snapshot to share with your class.
This was taken verbatim from http://jing.software.informer.com/
My understanding of Jing is it a way to add visual elements to anything you share on-line with others. It can also help you teach others without having to repeat things what have taught already. It allows you to reach more people by having them access a link. It is a freeware and can be used by anyone. I decided to download it and try it. I will come back and let you know what I think.
Ok, first I signed up and downloaded it. It was easy but I do not like that it keeps trying to get me to do a survey before I have even tried it. I watched the first tutorial on Snagit and found out that it was around $50. Jing is free but any of the other software included from TechSmith needs to be purchased and some can be very expensive.
I am still a bit confused as to why you would need this unless you do a lot of presenting or wanting people to see something. For everyday use, it seems a bit odd. I am going to use this for a while and see what happens.
Now I have looked at the site a bit more and almost all of the software offers a free trial. I am going to do this for Snagit and see what happens. It does have a unique one click screen capture option that seems to be interesting. I will let you know what happens.