3. FDD What is FDD? Floppy Disk Drives Used to read & write info to & from floppy disk. What are the advantages? Portability What are the disadvantages? Limited storage capacity
4. Types of Floppy Formats There are five types: DD = Double Density HD = High Density ED = Extended Density
5. HDD What is HDD? Hard Disk Drive What is it used for? Permanent and quick storage Contains three critical components
7. Controller Controls the drive Controller chip controls how the drive operates, it sends signals to various motors in the disk and receives signals from the sensors in the drive Hard disk Physical storage medium Store information on platters Host adapter The translator Converts signals form the hard drive and controller to signals the computer can understand.
8. Types of Hard Drives Magnetic Solid-State Drives Moving parts Less reliable Higher storage capacity No moving parts USB technology Lower life More reliable Lower storage capacity
18. Thumb drive Uses the USB interface which takes advantage of the plug and play feature. Replacement for the floppy disk, Zip, and Jazz
19. SD cards Stands for Secure Digital One of the smallest forms of data storage Used in many types of current technologies miniSD microSD
20. External CD-RW and Hard Drive Use the USB Portable Very useful for some laptops, desktops and all netbooks
21. Hot swappable devices and non-hot swappable devices Hot swappable devices Devices can be inserted and removed when the system is powered on. Non-hot swappable devices Warm-swappable Thumb drives and external drives You need use the Safely Remove Hardware utility Cold-swappable Need to have your power shut off before you insert or remove Keyboard or mouse
What is FDD? Used to read & write info to & from floppy disk.What are the advantages? They allow portability for transferring data from one computer to another by using the floppy disk.What are the disadvantages? The typical floppy was only able to hold up to about 2 MB as compared to the hard drive which can hold GB to TB of info.
