Lesson 2
Completion requirements
Go through the activity to the end
Opened: Monday, 21 January 2019, 11:33 AM
Classification of software
The program is an ordered set of instructions (directives) and instructions executed by the computer.
Executing program commands in a given sequence leads to a specific data change on the computer.
The software can be divided into three groups:
- system: operating systems, service programs, drivers, etc. - provide PC operation, distribution of its resources, support dialogue with the user;
- applied: text and image editors, databases, spreadsheets, etc. - provide solutions to various tasks of human activity;
- instrumental: programming languages.
To create software products, hundreds of people-years of skilled work (like the Windows system) are spent.
There is copyright in software products and should be respected.