Содержание
- 2. Contents Introduction ……………………………………….... Definition of OS………………………………... The main goals of the OS developers …………….... Appointment of
- 3. Introduction The increasing pace of computerization has already brought closer the time when not only relatively
- 4. Definition of OS The operating system to the greatest extent determines the appearance of the entire
- 5. The main goals of the OS developers Efficient use of all computer resources Improving the productivity
- 6. Appointment of OS The operating system is an intermediary between a computer and its user. It
- 7. 1940 – 1950s – no OS Full access to computer resources in machine language, all programs
- 8. 1960s – development of the first OS An important trend of this period is the creation
- 9. 1970-ГОДЫ – РАЗВИТИЕ ОС An important milestone in the history of operating systems was the creation
- 10. 1980s - DOS development The history of DOS (Disk Operation System) began in 1980 at Seattle
- 11. 1987 – OS / 2 appearance In 1987, as a result of the joint efforts of
- 12. 1985 – appearance of Microsoft Windows In those days, when work on Windows was just beginning,
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Contents
Introduction ………………………………………....
Definition of OS………………………………...
The main goals of the OS
Contents
Introduction ………………………………………....
Definition of OS………………………………...
The main goals of the OS
Appointment of OS…………………………………..
History of OS
1. 1940 – 1950s – no OS………….
2. 1960s – development of the first OS…………
3. 1970s – UNIX OS development……………….
4. 1980s - DOS development ………………...
5. 1987 – OS / 2 appearance……………………..
6. 1985 – appearance of Microsoft Windows
Conclusion ………………………………………….
Introduction
The increasing pace of computerization has already brought closer the time
Introduction
The increasing pace of computerization has already brought closer the time
On a “bare” car in the modern world
almost nobody works, and that’s it
determines interest in operating systems.
Definition of OS
The operating system to the greatest extent determines the
Definition of OS
The operating system to the greatest extent determines the
providing the user-programmer with facilities by providing him with an extended machine
improving the efficiency of computer use by rational management of its resources
OS - a set of programs (conventional and micro) that provide the ability to use computer hardware. At the same time, the equipment provides raw computing power, and the task of the operating system is to provide the equipment for the user in a form convenient for him.
The main goals of the OS developers
Efficient use of all computer
The main goals of the OS developers
Efficient use of all computer
Improving the productivity of programmers
Simplicity, flexibility, efficiency and reliability of the organization of the computing process
Ensuring the independence of applications from hardware (AO)
Appointment of OS
The operating system is an intermediary between a computer
Appointment of OS
The operating system is an intermediary between a computer
1940 – 1950s – no OS
Full access to computer resources in
1940 – 1950s – no OS
Full access to computer resources in
1960s – development of the first OS
An important trend of this
1960s – development of the first OS
An important trend of this
Software compatibility also required operating system compatibility. However, such compatibility implies the ability to work on large and small computing systems, with a large and small number of diverse peripherals, in the commercial field and in the field of scientific research. Operating systems built with the intention of satisfying all these conflicting requirements have proven to be extremely complex. They consisted of many millions of assembler lines written by thousands of programmers and contained thousands of errors causing an endless stream of corrections. The operating systems of this generation were very expensive.
1970-ГОДЫ – РАЗВИТИЕ ОС
An important milestone in the history of
1970-ГОДЫ – РАЗВИТИЕ ОС
An important milestone in the history of
then it became the first open OS that simple people could improve
enthusiastic users.
1980s - DOS development
The history of DOS (Disk Operation System) began
1980s - DOS development
The history of DOS (Disk Operation System) began
The missing functions for MS-DOS and similar OSs were compensated by external programs that provided the user with a convenient graphical interface (for example, Norton Commander) or thin disk management tools (for example, PC Tools).
1987 – OS / 2 appearance
In 1987, as a result
1987 – OS / 2 appearance
In 1987, as a result
This system was well thought out. It supported preemptive multitasking, virtual memory, a graphical user interface (not from the first version), and a virtual machine for running DOS applications. In fact, it went beyond simple multitasking with its concept of parallelizing individual processes, called a lot of threading. OS / 2 with its advanced multitasking features and the HPFS file system with built-in multi-user protection has proven to be a good platform for building local networks of personal computers.
1985 – appearance of Microsoft Windows
In those days, when work on
1985 – appearance of Microsoft Windows
In those days, when work on