File system

File system 

              is a means to organize data expected to be retained after a program terminates by providing procedures to store, retrieve and update data as well as manage the available space on the device(s) which contain it. 
A file system organizes data in an efficient manner and is tuned to the specific characteristics of the device.

Types of file systems

• 1 Disk file systems
• 2 Flash file systems
• 3 Tape file systems
• 4 Database file systems
• 5 Transactional file systems
• 6 Network file systems
• 7 Shared disk file systems
• 8 Special file systems
• 9 Minimal file system / Audio-cassette storage
• 10 Flat file systems

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 

Hardware and Software?

Hardware and Software?





Hardware is any physical device. Including all component parts of a computer. 
              Example : keybord,mouse,screen,modem
Software is a collection of instructions and code of computer.
              Sometime the program. 




Differences between hardware and software?


Hardware is captured and software is not captured or program.