Samsung SP0411N Manuel de service télécharger pdf (Page 26)

PANGO(PL40)

SAMSUNG HARD DISK DRIVE

BEARING

Abbreviation of pivot bearing, Mediator of Arm and Base which is located in the center of ARM

and it can rotate smoothly.

Bezel A plastic panel that extends the face of a drive so that it covers a computer's drive bay opening.

BIOS Basic Input/Output system: Control program/sub-program can control computer and around device.

bit A binary digit may have one of two values-1 or 0

Boot Record

Located in the first track and sector in disk where store physical structure information of disk.

(sector1, track 0, side 0)

BPI

Abbreviation of Bit Per Inch, it means the recording density towards circumference. Generally it

decidedtothevalueofmaximumtrack.

BPS Bit per second. Data transferring speed, transferring bit numbers per second.

BPSI Bits per square inch = areal density, Bit numbers per 1 square inch, BPSI=BPI x TPI

Breather

Filter

Filter to prevent contamination occurred inside due to outside air, it is putted on air plug.

Buffer

Temporary RAM to store data between HDD and host computer, it is used for efficiency

improvement.

Burn-in test Reliability test with changing temperature, voltage condition.

Bus The part of a chip, circuit board, or interface designed to.

Byte Unit of digital information. 1 Byte is 8 bit.

Cache

Optimizing method for drive efficiency, read cache is for data transfer from drive to host

computer and write cache is from host to drive. (256KB in normal. It mediate the bottle-neck

due to speed difference between drive and PC host)

Capacity Information amount could be stored in HDD. Units are MB, GB

Clean Room No particle room for MP or RMA of HDD. Grade of 1000ppm, 100ppm, 10ppm etc.

CLIP-FPC Components to assemble FPC and SUPPORT-FPC.

Clock Timing standard signal to treatment balance.

Cluster

The logical factor to read/write real data. One cluster is bind 2 sectors generally, its size is

2kbyte.

Compatibility

test

Test hardware device or software's compatibility to confirm compatibility.

Controller Disk Controller also, chip or circuit can be transfer data order of computer to available to HDD.

Cover

Protect parts within HDD from the exterior impact and particle and moist ,the fatal fact caused

head and disk failure.

CPU

Central Processing Unit. Control input/output device and sending, computing,recording data and

output the result.

Crash Stop

Protect activator's impact in emergency condition when head move to parking zone or come off

data zone.

CRC

Abbreviation of Cyclic Redundancy Code, detect error differ from ECC containing error correcting

function. For protect ID data.

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Samsung SP0411N Manuel de service Page 26

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