What’s Really Going On?
How Does a Disk Store Information?
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the backup battery keeps track of everything for the next time
you turn the computer on. The backup battery gets its charge
from the main battery.
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The RTC (real-time clock) battery stores the computer's con-
figuration information, which is stored in the RTC memory.
When you make changes in TSETUP or Hardware Setup, this
memory keeps track of those settings. The RTC battery also
operates the computer's internal clock.
The main battery charges the RTC battery.
How Does a Disk Store Information?
Like a tape recorder, a disk drive reads and writes magnetically
encoded information on magnetic media. The drive positions a
read/write head above the surface of the disk when it records and
retrieves information.
Before a drive can read from or write to a disk, the disk must have
a specific structure. Formatting a disk creates this structure.
Tracks and sectors of a disk
Formatting divides each side of the disk into concentric circles
called tracks. Each track is divided into sectors. Each item of infor-
mation stored on a disk has a specific address composed of its
side, track and sector number. This address makes it possible for
the computer to locate the information on the disk.
Tracks
Sectors (within one track)
Item of information
Summary of Contents for Satellite 200 Series
Page 48: ...Let s Start at the Very Beginning UsingTheElectronicGuide 49 ...
Page 117: ...Before You Go to a Computer Store BuyingHardware 121 ...
Page 174: ...Little Cards That Do Big Things RemovingaPCCard 181 ...
Page 201: ...Connecting to the World DiscoveringToshiba sOn lineResources 209 ...
Page 248: ...Making Life Easier ChangingtheDisplayMode 259 ...
Page 255: ...What s Really Going On WhatReallyHappensWhenYouTurntheComputerOn 267 ...
Page 290: ...If Something Goes Wrong IfYouNeedFurtherAssistance 303 ...
Page 321: ...Hardware Setup TheHardwareConfigurationOptionsDialogBox 339 ...
Page 336: ...TSETUP OTHERS 355 ...
Page 356: ...Specifications 379 ...
Page 364: ...Input OutputPortAddressAssignments Part III Appendixes 389 ...