Popular Posts

  • How data is organized on a magnetic disk?
             Before the computer can use a magnetic disk to store data,the disk's surface must be magnetically mapped so that the computer ...
  • The factors upon which the electric flux depends
    Electric flux depends upon the following factors, 1.Magnitude of electric intensity 2.area of surface 3.orientation of the area
  • How data is stored on a disk ?
            You may remember from science projects that one magnet can be used to make another.For example you can make a magnet by taking an i...
  • Discovery of Oersted
    The fact that the electric current through a conductor produces magnetic field around it was discovered by Oersted
  • keyboard
    The keyboard may look like a typewriter keypad to which some special keys have been added. The keys normally available on the keyboards are...
  • Definition of Farad
    Farad is the unit of capacitance.The capacitance of a capacitor is one farad if a  cahrge of one coulomb given to one of the plates of a p...
  • Mutual induction
    The process in which a change of current in one coil causes an induced emf in another coil nearby it is called mutual induction
  • Valence band
    A band occupied by valence electrons is called as valence band. It is either completely filled or partially filled. It lies below the condu...
  • Reactance
    The opposition offered by a capacitor to the flow of charge through it is called its reactance
  • Flash memory
         Flash memory is a special type of memory chip that combines the best features of RAM and ROM.Like RAM,flash memory lets a user or pro...

Friday 7 February 2014

Flash memory


     Flash memory is a special type of memory chip that combines the best features of RAM and ROM.Like RAM,flash memory lets a user or program access data randomly.Also like RAM,flash memory lets you overwrite any all all of its contents at any time.Like ROM,flash memory is nonvolatile,so data is retained even when power is off.
     Flash memory has many uses.For example,it is commonly used in digital cameras multimedia players such as MP3 players.A new type of storage device for PCs, called the flash memory device,is about the size of a car key.In fact many users carry a flash memory drive on their key chain.These tiny devices usually connect to a computer's USB or fire wire port and can store 256 MB or more of data.
Posted by at

No comments:

Post a Comment

Subscribe to: Post Comments (Atom)