Magnetic Disk

-

 Magnetic Disk


                             Magnetic disks use magnetic material to store data ' instructions  and information on disks surface. The data on magnetics disks is stored in tracks and sectors. Tracks from circles on the surface of a magnetics disks. Each tracks on a disks is divided  into sectors. Each sector typically stores up to 512 bytes of data. Hard disk is the most widely used magnetics  disks.


    

       Hard disk:


                               hard disk is the primary storage devices in a computer to storages the programs and data permanently.it is also known as hard disk drives HDD OR hard disk HD. most personal computers have at least one hard disk drives. Some large scale computer contain hundreds of hard disk.

                   The tradition hard disk is a type of magnetics disk . It is also called fixed disk because it is fixed in the system unit. It consists of several circular  disks called platters that are coated with magnetics material. The platters are stacked on the on the top of one another enclosed in a sealed case.

                         The user can write and read data from the hard disks many times. The disks must be formatted before any data can be written on a hard disks . Formatting is a process that creates tracks and sectors on the disk is divided




               Floppy Disks or Diskette

 

                                        coming soon....


Comments

Post a Comment

Popular posts from this blog

Express Card Modules and USB Adapters:

-
Express card and USB adapters:                                                                                   Express card and USB Adapters are smaller than expansion cards. These are used by mobile computer. The user can plug into the slots or ports of outside of the system unit.             Express Card module can be inserted into Express Card  slot on a computer or mobile device. Express Card modules and express Card slots are available in two widths of 34 mm and 54 mm known as Express Card/34 and express Card/54 respectively. Express Card /34 module can be used in both Express Card/54 module can only be used with Express Card/54 slots.    The USB adapter can be inserted into USB port on a computer or mobile device. It can be used...
Read more

Presentation Software:

-
Image
 Presentation Software:                                          Presentation software is a type of application software that uses graphic, animation, sound and data or information to make visual presentation. It provides many facilities to create  attractive presentation quickly and easily. The presentation consist of multiply slides. The slides contain the information for the audience. This information can include text, pictures, charts video and sound etc. These presentation can be used directly on computer screen. The presentations can also be viewed as slides on a large monitor and projection screen. The user can also print them for different uses. Popular presentation software are Microsoft PowerPoint, iWork Keynote, LibreOffice Impress and Google Docs Presentation.                           ...
Read more

Education Software

-
Education Software                                     Educational software is used in education field to learn different skills. Many software packages and available on different subject. students and common people can learn foreign language and use of application software through educational software. it is also used to educate basic skills math/ reading  and writing to the students of preliminary classes.  Many educational software use computer- based training (CBT) approach. CBT is a type of education in which students  learn through exercise  with instructional software. Different type of educational software application are as follows; Computer- Assisted Instruction (CAI)                                                         ...
Read more