2. PRESENTING :

3. 1.1 HARDWARE  FLOPPY DISK DRIVE (FDD)  DEVICE THAT SPINS A MAGNETICALLY COATED FLOPPY DISK TO READ DATA FROM AND WRITE DATA TO IT.  CONNECTS TO 34 PIN CONNECTER

5. HARDWARE  OPTICAL DRIVES  DISK DRIVE THAT USES A LASER TO READ AND/OR WRITE CDs AND DVDs.  TYPES OF OPTICAL DRIVES  COMPACT(CD)  DIGITAL VERSATILE DISC(DVD)  BLU-RAY DISK(BD)  REWRITABLE OPTICAL DISK(RW)

6. OPTICAL DRIVES

7. 1.2 MOTHERBOARD COMPONENTS,TYPES AND FEATURES  PARALLEL ADVANCED TECHNOLOGY ATTACHMENT:STANDARDFOR CONNECTING HARD DRIVES AND OPTICAL DRIVES INTO COMPUTER SYSTEMS AND USES A PARALLEL SIGNALING TECHNOLOGY.(PATA)  INTEGRATED DRIVE ELECTRONICS:AN EARLY DRIVE CONTROLLER INTERFACE THAT USES A 40- PIN CONNECTOR TO CONNECT DRIVES.(IDE)  ENHANCED INTEGRATED DRIVE ELECTRONICS:ENHANCED VERSION OF THE STANDARD IDE INTERFACE THAT CONNECTS HARD DISK,CD-ROM DRIVES,AND TAPE DRIVES TO A PC.(EIDE)

9. FORM FACTORS  ADVANCED TECHNOLOGY EXTENDED:STANDARD CASE FORM FACTOR FOR MODERN COMPUTERS.(ATX)  BALANCED TECHNOLOGY EXTENDED:INTERGRATES COSTEFFECTIVE ENGINEERING AND DESIGN STRATEGIES FOR POWER DISSIPATION,STRUCTURAL INTERGRITY,ACOUSTIC PERFORMANCE,AND MOTHERBOARD DESIGN INTO A SCALABLE FORM FACTOR.(BTX)  MICRO-ATX: SMALLER FOOTPRINT OF ADVANCED TECHNOLOGY EXTENDED.  NLX:NEW LOW-PROFILE EXTENDED.