Toshiba C50b User Guide

							Video RAMThe memory in a computer's graphics adaptor,
used to store the image displayed on a bitmap
display.
The amount of Video RAM available is
dependent on the computer's system memory.
Click  Start -> Control Panel -> Appearance 
and Personalization -> Display -> Adjust 
resolution .
The amount of Video RAM can be verified by
clicking the  Advanced settings  button in the
Screen Resolution window.Memory moduleThe memory module is installed in the computer.Legal Footnote (Memory (Main System))
For more information regarding Memory (Main System), please refer to the
Legal Footnotes  section.Graphics Processing
UnitGraphics processing unit (GPU) performance
may vary depending on product model, design
configuration, applications, power management
settings and features utilized. GPU performance
is only optimized when operating in AC power mode and may decrease considerably when
operating in battery power mode.Legal Footnote (Graphics Processing Unit (GPU))
For more information regarding Graphics Processing Unit (GPU), pleaserefer to the  Legal Footnotes  section.
Intel®
 Display Power Saving Technology
Intel GPU models may include the Display Power Saving Technology feature that can save the computer's power consumption by optimizing
picture contrast on the internal LCD.
This feature can be used if the computer is:
running under battery mode
using the internal LCD display only
The Display Power Saving Technology feature is enabled as the factory
default. If you want to disable this feature, you can disable it.
The Display Power Saving Technology feature can be disabled in the Intel ®
HD Graphics Control Panel/Intel ®
 Graphics and Media Control Panel.
You can access this control panel in the following way:
Right-click on the desktop and click  Graphics Properties...
User's Manual
3-10 
						

							In Intel®
 HD Graphics Control Panel:
1. Click  Power and select  On battery.
2. Click  Off under  Display Power Saving Technology .
3. Click  Apply.
If you want to enable this feature, under the conditions mentioned above, click  On under  Display Power Saving Technology .
In Intel ®
 Graphics and Media Control Panel:
1. Click  Power.
2. Select  On battery from the drop-down menu in  Power Source.
3. Clear the  Display Power Saving Technology  check box.
4. Click  OK.
If you want to enable this feature, under the conditions mentioned above, select the  Display Power Saving Technology  check box.
AMD ®
 Vari-Bright ™
AMD GPU models may include the AMD ®
 Vari-Bright ™
 feature that can
save the computer's power consumption by optimizing picture contrast on the internal LCD.
This feature can be used if the computer is:
running under battery mode
using the internal LCD display only
The Vari-Bright feature can be enabled in the AMD VISION Engine Control Center/Catalyst Control Center. You can access the center in the following way:
Right-click on the desktop and click  AMD VISION Engine Control
Center /Catalyst Control Center .
In this control panel:
1. Select  PowerPlay™  under Power.
2. Select  Enable PowerPlay™  check box, and then select the  Enable 
Vari-Bright™  check box.
If you want to improve the picture quality under the conditions mentioned above, adjust the setting towards Maximize Quality or disable this feature.
Power Condition Descriptions Power conditions
The computer's operating capability and battery charge status are affected
by different power conditions, including whether an AC adaptor is
connected and what the charge level is for that battery.
The LED in the table below refers to the  DC IN/Battery indicator.User's Manual 3-11 
						

							  Power onPower off
(no operation)AC adaptor
connectedBattery fully
charged• Operates
• No charge
• LED: white• No charge
• LED: whiteBattery partially
charged or no
charge• Operates
• Charge
• LED: amber• Quick charge
• LED: amberAC adaptor
not
connectedRemaining
battery capacity
is above low
battery trigger
point• Operates
• LED: offRemaining
battery capacity
is below low
battery trigger
point• Operates
• LED: flashes
amberRemaining
battery capacity
is exhaustedComputer shuts
down
DC IN/Battery indicator
Check the  DC IN/Battery  indicator to determine the status of the battery
pack and the power status with the AC adaptor connected. The following indicator conditions should be noted:
Flashing amberThe battery charge is low. The AC adaptor must
be connected in order to recharge the battery.AmberIndicates the AC adaptor is connected and the
battery is charging.WhiteIndicates the AC adaptor is connected and the
battery is fully charged.No lightUnder any other conditions, the indicator does not light.If the battery pack becomes too hot while it is being charged, the charge
will stop and the  DC IN/Battery indicator will go out. When the battery
pack's temperature falls to a normal range, charging will resume - this
process will occur regardless of whether the computer's power is on or off.User's Manual 3-12 
						

							Power indicatorCheck the  Power indicator to determine the power status of the computer -
the following indicator conditions should be noted:WhiteIndicates power is being supplied to the
computer and the computer is turned on.Flashing whiteIndicates that the computer is in Sleep Mode and that there is sufficient power available (AC
adaptor or battery) to maintain this condition.No lightUnder any other conditions, the indicator does not light.
User's Manual 3-13 
						

							Chapter 4
Operating Basics This chapter describes the basic operations of your computer, and
highlights the precautions that should be taken when using it.
Using the Touch Screen Some models are equipped with a touch screen.You can use your finger to manipulate icons, buttons, menu items, theonscreen keyboard, and other items on the touch screen.
TapSimply tap your finger on the touch screen to act
on items on the screen. (Similar to left-click)Press and holdPress your finger down and leave it there for a
few seconds. This will show information to help
you learn more about an item or will open a
menu specific to what you are doing. (Similar to right-click)Pinch or stretchTouch the screen or an item with two or more
fingers, and then move the fingers toward each
other (pinch) or away from each other (stretch).
This will visually zoom in or out.RotatePut two or more fingers on an item and then turn
your hand to rotate things in the direction you
turn your hand. Only some items can be rotated.SlideDrag your finger on the touch screen to move through what's on the screen.
For details and more advanced touch screen gestures to interact with
Windows operating system, please refer to Help and Support.
Using the Touch Pad The Touch Pad located in the palm rest may support the followinggestures:
User's Manual 4-1       
						

							TapSimply tap your finger on the Touch Pad to act
on items on the screen. (Similar to left-click)Pinch or stretchPlace two or more fingers down on the Touch
Pad and move them toward each other (pinch) or
away from each other (stretch). This will visually
zoom in or out.Two-Finger ScrollPlace two fingers down and slide them vertically or horizontally from anywhere on the Touch Pad.This allows you to operate the scroll bars of a
window.Some of the Touch Pad operations described in this section are only
supported in certain applications.
The Keyboard
The number of keys available on your keyboard will depend on whichcountry/region your computer is configured for, with keyboards being
available for numerous languages.
There are different types of keys, specifically typewriter keys, function keys, soft keys, Windows special keys and the keypad overlay.
Never remove the key caps on your keyboard. Doing so could cause
damage to the parts under the key caps.
Keyboard indicator
The following figure shows the position of the  CAPS LOCK indicator and
NUM LOCK  indicator which show the following conditions:
When the CAPS LOCK  indicator glows, the keyboard will produce
capitals when any letter is typed.
When the  NUM LOCK  indicator glows, the ten key allows you to enter
numbers.
User's Manual 4-2    
						

							Figure 4-1 Keypad indicators1. CAPS LOCK indicator2. NUM LOCK indicatorCAPS LOCKThis indicator glows green when letter keys are
locked into their uppercase format.NUM LOCKWhen the NUM LOCK indicator glows, you can
use the number keys on the keyboard for number
entry.
Function Key
The function keys (F1 ~ F12) are the twelve keys at the top of your
keyboard.
The programmed functions can be executed in either of the following two modes described.
Special function mode
Allows you to use the function keys without pressing the  FN key.
Standard F1-F12 mode
Allows you to use the function keys in combination with the FN key.
You can select the desired mode by clicking  Start -> All Programs ->
TOSHIBA -> Tools & Utilities -> HWSetup -> Keyboard .
Special
function modeStandard F1-
F12 modeFunctionF1FN + F1Launches the help file supplied with
the software.F2FN + F2Decreases the computer's display
panel brightness in individual steps.F3FN + F3Increases the computer's display
panel brightness in individual steps.
User's Manual 4-321   
						

							Special
function modeStandard F1-
F12 modeFunctionF4FN + F4Changes the active display device.
To use a simultaneous mode, you
must set the resolution of the internal
display panel to match the resolution
of the external display device.F5FN + F5Enables or disables the Touch Pad.F6FN + F6Moves media backward.F7FN + F7Plays or pauses media playback.F8FN + F8Moves media forward.F9FN + F9Decreases the computer's volume.F10FN + F10Increases the computer's volume.F11FN + F11Turns the sound on or off.F12FN + F12Switches the active wireless devices.FN + 1FN + 1Reduces the icon size on the desktop or the font sizes within one of the
supported application windows.FN + 2FN + 2Enlarges the icon size on the desktop
or the font sizes within one of the
supported application windows.FN + SpaceFN + SpaceChanges the display resolution.
Flash Cards
Flash Cards makes it visual and easy to access and use the function keys. Normally the cards are hidden from view. To activate and use the Flash
Cards, follow the steps below:
Standard F1-F12 mode
1. Press and hold the  FN key.
Flash Cards will appear on top of the screen by default.
2. Press the function key or click the card associated with the desired function.
The selected card with available options will appear.
3. Press the function key repeatedly to cycle through the available options and release the  FN key when the desired option is selected.
You can also click the desired option.
Special function mode
User's Manual 4-4 
						

							1. Press the function key repeatedly to cycle through the availableoptions and release it when the desired option is selected.
For more information, please refer to the TOSHIBA Flash Cards Help file. To access this help, click  Start -> All Programs -> TOSHIBA -> Tools & 
Utilities -> Flash Cards . In the Settings for Flash Cards  window, click
the  Help  button.
Sticky key
You can use the TOSHIBA Accessibility utility to make the  FN key sticky,
that is, you can press it once, release it, and then press a desired function key. To start the TOSHIBA Accessibility utility, click  Start -> All Programs
-> TOSHIBA -> Tools & Utilities -> Accessibility .
Windows special keys The keyboard provides two keys that have special functions in Windows,the Windows ®
 logo key activates the  Start menu while the application key
has the same function as the secondary (right) mouse button.
This key activates the Windows  Start menu.
This key has the same function as the secondary (right) mouse button.
Generating ASCII characters Not all ASCII characters can be generated using normal keyboard
operation, but you are able to generate these characters using their
specific ASCII codes.
1. Hold down the  ALT key.
2. Using the numeric keypad, type the ASCII code of the character you require.
3. Release  ALT - the ASCII character will appear on the display screen.
Optical disc drives The computer may be installed with a DVD Super Multi drive. When the
computer is accessing an optical disc, the indicator on the drive glows.
Formats The drives support the following formats.
DVD Super Multi drive
The drive supports the following formats: CD-ROM, DVD-ROM, DVD-
Video, CD-DA, CD-Text, Photo CD™ (single/multi-session), CD-ROM
User's Manual 4-5   
						

							Mode 1/Mode 2, CD-ROM XA Mode 2 (Form1, Form2), Enhanced CD (CD-
EXTRA), Addressing Method 2, DVD-R, DVD-RW, DVD+R, DVD+RW, DVD-RAM, DVD-R DL (Format1), DVD+R DL.
Using optical disc drives The full-size drive provides high-performance execution of disc based
programs. You can run either 12 cm (4.72") or 8 cm (3.15") discs without
an adaptor.Use the DVD playback application to view DVD-Video discs.
For precautions on writing to discs, refer to the  Writing discs section.
To load discs, follow the steps as detailed below: 1. When the computer’s power is on, press the eject button to open the disc tray slightly.
2. Grasp the disc tray gently and pull until it is fully opened. Figure 4-2 Pressing the eject button and pulling the disc tray open
1. Eject button2. Disc tray
User's Manual 4-62
1