Computer Fundamentals

3

COMPUTER MEMORY

Contents

• Memory representation
• Memory hierarchy—Internal memory (registers, cache memory, primary memory), secondary memory (magnetic disk, optical disk, magnetic tape)
• Registers, cache memory
• Primary memory—Random access memory, read only memory
• RAM—DRAM, SRAM, memory modules— DIMM, SIMM
• ROM—PROM, EPROM, EEPROM, flash memory
• Secondary memory
• Access types of storage devices—Sequential access devices, direct access devices
• Magnetic tape—Working of magnetic tape, features of magnetic tape
• Magnetic disk—Working of magnetic disk, features of magnetic disk, finding data on magnetic disk
  • Floppy disk
  • Hard disk
  • Zip disk
• Optical disk—CD-ROM, DVD-ROM, recordable optical disk
  • CD-R
  • CD-RW
  • DVD-R
• Magneto-optical disk
• Using the computer ...