Device driver

Device driver is software that enables the operating system. The device can be used.

           A driver typically communicates with the device through the computer bus or communications subsystem to which the hardware connects. When a calling program invokes a routine in the driver, the driver issues commands to the device. Once the device sends data back to the driver, the driver may invoke routines in the original calling program. Drivers are hardware-dependent and operating-system-specific. They usually provide the interrupt handling required for any necessary asynchronous time-dependent hardware interface.

Part of the System software.

Operating System (OS)

Operating System is a set of software that manages computer hardware resources and provides common services for computer programs.


Support for the operation of hardware and application software such as Windows XP, DOS, Linux, Mac OS X.

Example of Common features

- Process management

- Interrupts

- Memory management

- File system

- Device drivers

- Networking (TCP/IP, UDP)

- Security (Process/Memory protection)

- I/O

Software

Types of Software

1. System Software is.....

A set of instructions written statement ready to control the hardware.
The panel received information from the computer keyboard character and interpret it.

2. Application Software is......

Software or programs that allow computers to work regularly by the user.

Types of Application software   
   - Package Solfware

The software is extremely popular. Software is a software development company and then sold. To allow users to buy used. Do not waste time on software development.

 - Only Solfware
The software developers need to work or to study the needs of its business is conducted.

Hardware 

5 units of hardware components as follows.


1.Input Unit
2.Memory Unit
3.CPU [Central Processing Unit]
4.Secondary Storge
5.Output Unit