It provides basic computing resources like CPU, memory, I/O devices.

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It measures how many of your available resources you are currently using.

• RESOURCE UTILIZATION

• MAINFRAME

• OS

• BUS

It is also known as big iron.

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It controls and coordinates the use of hardware among various applications and users.

• OPERATING SYSTEM

• MAINFRAME

• OS

• BUS

It ships with the operating system, but not part of the kernel.

• MIDDLEWARE

• SYSTEM PROGRAM

• BOOTSTRAP PROGRAM

• MAIN MEMORY

It is a set of software frameworks that provide additional services to application developers such as databases, multimedia, graphics.

• MIDDLEWARE

• SYSTEM PROGRAM

• BOOTSTRAP PROGRAM

• MAIN MEMORY

It is a communication system that transfers data between components inside a computer, or between computers.

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It is an interrupt transfers control which contains the addresses of all the service routines.

• POLLING

• BIT

• NUMA

• INTERRUPT VECTOR

It is the first code that is executed when the computer system is started.

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It is the process in which the CPU constantly checks the status of the device.

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