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Chapter 1.1

Chapter 1.1 . FDD ( Floppy Disk Drive). Needs a data cable for connection Has two 34-pin drive connectors and one 34-pin connector for the drive controller C an be used to boot the computer if it contains a bootable floppy disk

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Chapter 1.1

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  1. Chapter 1.1

  2. FDD( Floppy Disk Drive) • Needs a data cable for connection • Has two 34-pin drive connectors and one 34-pin connector for the drive controller • Can be used to boot the computer if it contains a bootable floppy disk • Uses removable 3.5-inch floppy disks • Disks can store 720 KB or 1.44 MB of data

  3. HDD (Hard Disk Drives ) MAGNETIC STATE: • Magnetic storage device • Permanent storage for data • Configured as the drive and contains the operating system and applications • The first drive in the boot sequence. • Storage is measured in billions of bytes, or gigabytes (GB). • Speed is measured in revolutions per minute (RPM SOLID STATE: • do not have moving parts. (no drive motors and moving parts) • uses far less energy • volatile flash memory chips manage all storage • Faster data access • uses ATA or SATA interfaces

  4. OPTICAL DRIVES Compact Disc (CD) 7 Types of Optical Media Digital versatile Disc (DVD) CD-ROM- Pre-recorded read only memory Blu-ray Disc (BD) CD-R- One time recordable media can be pre-recorded (read-only) CD-RW-rewritable can be recorded, erased, re-recorded. recordable (write once) DVD-ROM-media that is pre-recorded re-recordable (read and write multiple times DVD-RAM-can be recorded, erased, and re-recorded. CDs have a data storage capacity of approximately DVD+/-R-Canbe recorded one time. 700 MB DVD+/-RW-rewritable can be recorded, erased, re-recorded. DVDs have a data storage capacity of approximately BD-ROM -pre-recorded with movies, games, or software 4.3 GB on a single-layer disc & approximately 8.5 BD-R-record HD video and PC data storage one time. GB on a dual-layer disc. BD-RE- HD video recording and PC data storage. BDs have a storage capacity of 25 GB on a single-layer disc, and 50 GB on a dual-layer disc.

  5. Removable Storage • Tape drive-Device used for data backup on a network server drive. • Solid State-Does not have moving parts so it uses far less energy. (Thumb Drives, Flash Drives, SD cards, and USB are all Solid State devices) • Eternal CD-RW-rewritable media that can be recorded, erased, and re-recorded. • Hard Drive-a Permanent magnetic storage device that is installed inside the computer • Hot Swappable- Allows peripherals Such as USB’s, to be changed while the system is running. • Non-Hot Swappable devices- Does not allow peripherals such as Hard Drives, to be changed while the system is running

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