HARD DISK

🔜 The Hard disk is a one  type of the magnetic disk storage device inside a computer.

🔜It is used to storage data into computer system. 

🔜Data stored in a hard disk can be accessed much more quickly than data stored on the magnetic tape. 

,🔜When computer switched off then also data remains safe in hard in Hand disk. 

🔜In hard disk cotted with hige quality magnetic material.

🔜That magnetic material has very hige density. 

🔜A hard disk pain around thousands of time per minute insides. 

🔜Modern hard drives are measured in gigabytes .

🔜The most expensive computer will have the largest hard drive. 

,🔜Standerde systems come with hard drives between 40 GB and 1 TB. 

🔜It is possible to add more then one hard disk inside the computer. 

🔜This an good idea if you wish to back up your data at the same time as you work the main disk holds your data at the same time as the second disk .       'mirror'     It is the background.

🔜In that way when one disk is fails the other is keeping your data safe.  

                    *  IDE(integrated  device electonik) 

                     *  SCSI( small computer system interface) 

                   

                        *    Karan  Solanki 

                        *  mobail number 

                            6359816418

                            

TOPIC: Lite Pen

A Lite pen is a computer input device in the from of a Lite -sensitive wond used in conjunction with a computer 's CRT TV set or monitor . It allows the user to point to displayed objects ,or drow on the screen , in a similar way to touch screen but with greater positional accuracy. Lite pen work line you would expect. you simply point the pen on the screen and press a button to make your selections. No special monitor are neededey they work with any PC compatible and it's associated monitor. follow the simple hardwork and software installation procedures incudede. the Lite pen work just like your mouse. Lite pen 'sprovide a very precise pointing capability directly on the screen. seems pixels are constantly being refreshed. Wher user presses a button, pen senses a Light, and the pixel being illuminated at that instant dentifies the screen location. karan Solanki