Secondarty Storage

File Compression    

     A large file after compression, resulting in a smaller capacity of the file to another. And the smaller the file size, we call it the capacity of these large (and possibly one or more files) compressed files. The compressed file is called file compression.
     To use these compressed files, you must deal with these compressed files can be processed or executed restore the file format.

Hard Crash

       To my knowledge, hard crash means system crash.


       By the operational errors or viruses malicious software causes the computer not working properly, frequent crashes and other symptoms is called a system crash. Even if the collapse caused by the software, the best performance of the PC hardware is also inseparable from software support - also known as applications, operating systems and drivers.

Internet Hard Drive 

         When the network computer's disk as a shared data area allows network users to access, the drive to become a network drive. Sometimes use the network drive is to be limited, and that only authorized network users to the network administrator can access them. This drive can be a hard drive, CD-ROM drive, floppy disk drives. Similarly, the use of network drives and local drives is no different, just slower rate than local use.

Optical Disc Drive

      A storage medium from which data is read and to which it is written by lasers. Optical disks can store much more data -- up to 6 gigabytes (6 billion bytes) -- than most portable magnetic media, such as floppies.

Solid-State Storage

     Solid state memory is relative to the disk, CD-ROM for a class, no heads, no storage media movement (rotation) to read and write data in memory.

     Solid state memory storage chip through the switching transistors to store data in the state, because there is no solid state memory read-write head, do not rotate, so the solid-state memory with low power consumption, the advantages of strong earthquake.