nicePlatTechprelim

utilizes hardware resources of one or more processors to provide a wide range of services to system users

• processor

• process

• system

• Operating System(OS)

The OS provides a variety of facilities and services in the form of utility programs, such as editors and debuggers, for program development, which is also referred to as application program development tools.

• Program Development

• Program execution

• Access to I/O devices

• Control access to files

The OS handles different processes, such as loading data into the memory and scheduling, which must be performed to execute programs.

• Access to I/O devices

• System resource access

• Control access to files

• Program execution

: The OS provides a uniform interface that hides complex sets of instructions for I/O devices' operation

• Control access to files

• Access to I/O devices

• System resource access

• Error detection and response

The OS encompasses a detailed understanding of the structure of data contained in a file storage and can provide some protection mechanisms to control file access.

• System resource access

• Control access to files

• Error detection and response

• Error detection and response

The OS controls access to the whole system and to some specific system resources through access functions and authorizations.

• System resource access

• Performance parameter monitoring

• Instruction Set Architecture

• Error detection and response

The OS can detect errors, such as device failure and software errors, and provide appropriate responses that would clear the error condition with the least impact on running applications

• • Performance parameter monitoring

• Application Binary Interface

• Error detection and response

• Instruction Set Architecture

The OS must be able to collect usage statistics from various processes, such as response time, that can be used as a basis for system performance improvements.

• Performance parameter monitoring

• Application Binary Interface (ABI)

• Application Program Interface

• Instruction Set Architecture (ISA)

The ISA defines the collection of machine language instructions that a computer can follow. The OS has access to additional machine language instructions that deal with managing a system's ISA.

• Application Program Interface

• Instruction Set Architecture (ISA)

• Application Binary Interface (ABI)

defines a standard for binary portability across programs. It defines the system call interface to the OS and the hardware resources and services available in a system through the ISA.

• Instruction Set Architecture (ISA

• Application Binary Interface (ABI)

• Application Program Interface