plat tech 1

utilizes hardware resources of one or more

processors to provide a wide range of services to system users

involves software and files that are installed on a

computer so that it can boot and execute programs

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.

• Control access to files

• Access to I/O devices

• Program execution

• Program development

The OS handles different processes, such as

loading data into the memory and scheduling, which must be performed

to execute programs.

• Control access to files

• Access to I/O devices

• Program execution

• Program development

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

• Program execution

• Program development

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.

• Control access to files

• Access to I/O devices

• Program execution

• Program development

The OS controls access to the whole system

and to some specific system resources through access functions and

authorizations.

• Instruction Set Architecture (ISA)

• Performance parameter monitoring

• System resource acces

• 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.

• Error detection and response

• Instruction Set Architecture (ISA)

• System resource acces

• Performance parameter monitoring