M40S 36
SAMSUNG HARD DISK DRIVE
Transfer rate Data transferring speed among PC and other devices of HDD.
Tri-pad head The existing thin film head have 2 ABS and adding one more ABS, head is designed to be
profitable to low flying height. Produced by SAE, ReadRite company.
Unformatted
capacity HDD capacity before formatting.
USB
Universal Serial Bus. Particular chip was connected in period plate and manage keyboard,
mouse, printer,modem, this chip unify the connecting pot shape of other device period plate,
then make easy to connect and speed is 10 times higher than the current vertical connection.
VAR Value Added Re-seller. Vendor sell the existing product after making higher value added.
VCM
Voice Coil Motor: Stable and high speed motor applying speaker system, make move head in
proportion to magnetic strength. Motor used voice coil has fewer components than step motor so
it is strong for stress and abrasion and move head in high speed. They divided Rectangular and
Flat coil type of VCM according to shape and Linear and Rotary type according to rotation
method. Recently flat coil type and rotation type is general.
VCM COIL Trapezoid shaping parts connected to ARM with winding coated write in 250 times.
Winchester
Disk
Disk drive same as fixed Disk and hard Disk. Winchester was the of developing model at that
time by IBM, establish fixed magnetic disk within airtight space then head rise on connecting
disk, we apply to all kind of hard disk drive now days.
Window
Clock Make hole so head for servo write to write locational information could enter inside of HDD.
Window
Pusk Pin PinholetoenterHDA.
Write cache
Write cache improve system capacity, i.e. make possible to work while recording information on
disk and this is risk to loose data when off but PC use write cache within operating system like
smart drive to prevent that risk.