If by computer systems you mean operating systems, then:
1) Windows
2) Macintosh
3) Linux
No, the Apple computer is a personal computer. The 2 main operating systems sold today are Microsoft Windows 8 and Apple OSx Mountain Lion.
Computers.
The answers are:Metric system and English system
The first information systems were introduced in the 1950s and 1960s. These early systems were primarily used for data processing and business applications, paving the way for the modern computer systems and technologies we have today.
There are four basic and main database management systems that are used today. Those four include hierarchical, network, relational and object-oriented.
The computer is used for research and fun.
The democracy, oligarchy, monarchy, and dictatorship, are the four main governing systems of the present day:-) hope this helps..
The main use of a computer is to be fed data, process that data and come up with information which can be used to make decisions, but in today's culture, they are also being used as a source of entertainment.
Yes, it is!
To arrange data in a particular manner.these manner or set of rules is defined in the data structure so that the data used in computer systems can properly used at necessary time.
CC Cleaner
2 many