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Using the Battery   33

Battery Notes: 

All batteries eventually wear out and lose the ability to hold a charge. You may 
need to replace your battery pack after a year of average usage. The battery 
is only warranted for 1 year. 
All batteries lose their charge if they sit unused for an extended time period. 
When not used, battery can discharge fully in 2 to 3 months. 

Increasing Battery Life

You can increase battery life using the following methods: 

General Environment

Using the methods below you can increase battery life by as much as 1.5 times. 

•

Detach any unnecessary USB and PS/2 devices - (camera, mouse, keyboard 
etc.) 

•

Do not use any Multimedia programs - (Windows Media Player, audio/video 
CDs) unless absolutely necessary. 

Adjust LCD Brightness

Reducing the LCD display brightness will reduce the power consumption of the 
battery. However the computer will automatically reduce the brightness after 20 
minutes of inactivity. The screen will be returned to original settings when you resume 
using the computer. 
To reduce the LCD display brightness use the key 

<Fn+F9>

 combination. 

Power Management

To change the time until your computer goes into reduced power modes, use the system 
power management function. 

1.

Click 

Start 

> 

Control Panel 

> 

Performance and Maintenance

. 

2.

Click 

Power Options

. 

The power options panel enables you to reduce the time until your computer goes into 
standby mode for example. See “Using Power Management Options” on page 45 for 
instructions on how to use this battery saving tool. 

LEO II (2)  (Windows XP) - English.fm  Page 33  Wednesday, June 19, 2002  3:36 PM

Содержание NA10

Страница 1: ...ed herein are for identification purposes only and may be trademarks and or registered trademarks of their respective companies Macrovision Statement If your computer has a DVD drive and an analog TV Out port the following paragraph applies This product incorporates copyright protection technology that is protected by method claims of certain U S patents and other intellectual property rights owne...

Страница 2: ... source indicated on the rating label Ensure that the electrical outlet you are using to power your equipment is easily accessible in case of fire or short circuit If your computer has a voltage selector switch make sure that the switch is in the proper position for your area Openings in the computer case are provided for ventilation Do not block or cover these openings Make sure you provide adequ...

Страница 3: ...the wall outlet and refer servicing to qualified personnel if The power cord or plug is damaged Liquid has been spilled into the system The system does not operate properly when the operating instructions are followed The system was dropped or the casing is damaged The system performance changes Replacement Parts and Accessories Use only replacement parts and accessories recommended by manufacture...

Страница 4: ...ere you purchased your equipment Power cord sets for use in other countries must meet the requirements of the country where you use the computer For more information on power cord set requirements contact your authorized dealer reseller or service provider General Requirements The requirements listed below are applicable to all countries The length of the power cord set must be at least 6 00 feet ...

Страница 5: ...erence by one or more of the following measures Reorient or relocate the receiving antenna Increase the separation between the equipment and receiver Connect the equipment into an outlet on a circuit different from that to which the receiver is connected Consult the dealer or an experienced radio TV technician for help If necessary the user should consult the dealer or an experienced radio televis...

Страница 6: ... company will provide advanced notice in order for you to make necessary modifications to maintain uninterrupted service If trouble is experienced with this equipment Modem for repair or warranty information please contact your local distributor If the equipment is causing harm to the telephone network the telephone company may request that you disconnect the equipment until the problem is resolve...

Страница 7: ...xtended by means of a certified connector assembly The customer should be aware that compliance with the above conditions may not prevent degradation of service in some situations Repairs to certified equipment should be made by an authorized Canadian maintenance facility designated by the supplier Any repairs or alterations made by the user to this equipment or equipment malfunctions may give the...

Страница 8: ...connection to the analogue Public Switched Telephone Networks PSTNs of TE excluding TE supporting voice telephony services in which network addressing if provided is by means of Dual Tone Multi Frequency DTMF signaling Although this equipment can use either loop disconnect pulse or DTMF tone signaling only the performance of the DTMF signaling is subject to regulatory requirements for correct oper...

Страница 9: ...eto and conforms to the standards set by the Voluntary Control Council for Interference by Information Technology Equipment aimed at preventing radio interference in such residential areas When used near a radio or TV receiver it may become the cause of radio interference Read instructions for correct handling Notice and Safety No Wireless English V1 1 fm Page ix Friday May 3 2002 3 07 PM ...

Страница 10: ...ossibility of personal injury Caution Warns you of possible damage to equipment or data Note Informs you of special circumstances Technical Information Informs you of special requirements or limitations for use of item s Keyboard Conventions Keys that you need to press to perform certain functions are displayed in the manual using a small graphic of the button For example Ctrl or Ctrl indicates th...

Страница 11: ...re such as the Start Button shown on the right Table 1 Touchpad Click Conventions Almost all Windows programs will display the name function of a button or icon if you place the touchpad pointer on the item you want information about Software User Documentation Your computer is shipped from the factory with several software programs installed The software may include its own online or printed docu...

Страница 12: ...et your computing needs at home and or on the road Where Everything Is The next 6 figures will explain the location of all of the buttons LEDs and equipment needed to operate your notebook computer Front SENS Keyboard LEDs Touchpad Speaker Touchpad Buttons Power Button LCD Display LCD Latch Keyboard Speaker LEO II 2 Windows XP English fm Page 3 Wednesday June 19 2002 3 36 PM ...

Страница 13: ...ED Caps Lock LED Num Lock LED Disk Access LED Internet Button E Mail Button User Programmable Button Power LED Battery Status LED Fan Vent DC In Port FDD Drive Volume Wheel Battery CD ROM Drive PCMCIA Slot 2 LEO II 2 Windows XP English fm Page 4 Wednesday June 19 2002 3 36 PM ...

Страница 14: ...he computer on a soft surface doing so will block the bottom vents External Monitor Port LAN Port Modem Port Parallel Printer Port USB Ports 2 Security Lock Port PS 2 Port Headphone Jack VHS TV Out Port Serial Port Microphone Jack USB Port HDD Compartment Battery Fan Vent Battery Latch LEO II 2 Windows XP English fm Page 5 Wednesday June 19 2002 3 36 PM ...

Страница 15: ...mputer over so the bottom of the unit faces up Battery Orientation Insert the battery into the battery compartment ensuring the correct orientation so that the battery fits in its slot properly 2 Carefully slide the battery pack into the compartment Make sure the battery is fully inserted into the compartment You will hear the battery latch click which will secure the battery in place Battery Latc...

Страница 16: ...rea If not contact the supplier 1 Plug the AC adapter into the power connector on the side of the computer 2 Connect the power cord to the AC adapter and then to an electrical outlet The battery starts charging as soon as you plug the power cord into an electrical outlet The battery charges faster if the computer is turned off during charging Ensure you charge the battery fully the first time you ...

Страница 17: ...r button The power LED is on when the computer s power is on Initial Computer Startup The first time you start your computer you will see the operating system registration screens Simply read each screen and follow the simple directions You must complete this process in order to use your computer A tutorial is provided if you require it Power Button LEO II 2 Windows XP English fm Page 8 Wednesday ...

Страница 18: ...indow shown below 3 Click Turn Off to complete the shutdown sequence If the system does not power off then press and hold the power button for over 4 seconds See Using Power Management Options on page 43 You can also perform a soft boot by saving your files and pressing Ctrl Alt Del to pop up the Windows Task Manager window Click Shut Down Restart You can perform a cold boot by pressing the power ...

Страница 19: ...d adjust the LCD brightness to a higher level when you are on battery power however this will decrease battery life LCD Cleaning Cleaning the LCD display should only be done with a soft cloth dampened with denatured alcohol or a proprietary LCD screen cleaner Even if you change the default LCD display brightness settings the defaults listed above will be restored once you power off and then back o...

Страница 20: ... on the outside Use only approved AC adapters auto adapters memory modules and other options Avoid using or storing the computer in extremely hot or cold areas such as a car on a hot day Keep the computer away from heaters and out of direct sunlight Exposure to excessive heat may damage computer components If you have left your computer in a hot place let it cool down slowly to room temperature wi...

Страница 21: ...r cord is easily accessible You may be required to turn on the computer for airport security personnel Be prepared to turn off the computer during take off and landing Locking your Computer As a precaution when you are travelling or using your computer in an unsecured area you should keep your computer as safe as possible An option to do this is the Security Lock System Follow the Security Lock Sy...

Страница 22: ...ely then do the following If you spill liquid on the keyboard drain as much of the liquid from the keyboard as possible Be careful not to let the liquid drip onto the LCD panel Allow the system to dry for several days before trying to use it If you spill liquid on an external keyboard or keypad unplug it and drain as much of the liquid as possible Allow the keyboard to sit at room temperature for ...

Страница 23: ... a full sized keyboard when you use it The keys on the keyboard can be grouped into the following categories Full sized Alphanumeric typewriter keys are arranged like a standard typewriter keyboard QWERTY and are used for text entry The Windows key opens Windows menus and performs other special functions F1 F2 F4 F5 and F8 to F12 when pressed together with enable special functions The Application ...

Страница 24: ...roup of keys that you can set to type numbers and mathematical symbols such as the plus sign A number or symbol on the right corner of each keypad key shows its numeric function Press Num Lock to turn on the embedded numeric keypad The numeric functions of the keypad are enabled and the Num Lock LED turns on See Reading the System Status LEDs on page 21 for the location of the Num Lock LED While t...

Страница 25: ...h the LCD and the external monitor Fn F6 F6 Guage Guage Displays the battery gauge in the upper right corner of your screen The gauge closes in a few seconds or you can press Esc to close the gauge See Monitoring the Battery Charge on page 35 for more information on the battery gauge Fn F8 F8 Mute Mute Increases the audio volume Fn F9 F9 Volume down Volume down Decreases the audio volume Fn F10 F1...

Страница 26: ...icon on the Windows taskbar the Key Setting window is displayed 2 Select Button you wish to reprogram from the drop down menus in the Key Setting window 3 Use the Browse button to locate the program you wish to assign to the SENS Keyboard button selected 4 Click on your program choice to select it 5 Click Open 6 Click OK to close window and complete programming the Sens Keyboard Internet E Mail Ou...

Страница 27: ... touchpad gently The following sections basically explains how to use the touchpad Table 3 lists the general actions associated with the touchpad Table 3 Touchpad Click Conventions Action Process and Comment Click Tap Process Depress the touchpad left button and release or position the pointer over the object and Quickly tap the touchpad once with your finger This action is called clicking Comment...

Страница 28: ...a file folder Click Hold Process Depress the left touchpad button and do not release Comment This is used to move drag objects to new locations See Drag Move on page 20 Right Click Process Position the pointer over the object Quickly press and release the right button once This action is called Right clicking Comment This is usually used to obtain information about an object or access a short cut ...

Страница 29: ...Drag the window using the touchpad Area or Multiple item selection The drag function may be used to select an area or multiple items in an area by clicking in one area and then dragging to create a selection window The items inside the window will be selected 1 2 Cursor in Windows Title Bar 2 Drag your finger to move the window 1 Click the Window Title Bar and Hold LEO II 2 Windows XP English fm P...

Страница 30: ...c and special keys Scroll Lock Scroll lock in certain software Drive Access Using the Disk Drives Blinking Green HDD is being accessed Blinking Amber FDD or CD ROM is being accessed Power Green System power on Blinking Standby mode Battery Status Green Battery Fully Charged AC Plugged In Amber Battery Charging LED Off AC Unplugged Power Button Scroll Lock LED Caps Lock LED Num Lock LED Disk Access...

Страница 31: ...lugging the cable into the slot in the back side of the computer 1 Contact your Internet Service Provider to obtain information or CD required to make the connection in your area 2 After the cable is connected create a Dialup connection by clicking Start Control Panel Network and Internet Connections 3 Click Set up or change your Internet connection Setup to start the connection wizard 4 Follow th...

Страница 32: ...es If you connect the modem to a digital phone line such as a company 4 wire system the modem may be damaged DOS support Windows XP Does not support pure DOS mode and the modem does not support a DOS box in Windows So you cannot use a communication application which runs under DOS Using the Modem on a PBX system If you use a Windows Communication Program follow the instructions below 1 Click Start...

Страница 33: ...ter is ready to use for most situations however if your system does not have a DHCP server or you wish to personally configure your LAN connection proceed as outlined in the Configuring Network Environment below Network Protocols You may need to consult your SysAdmin if their network protocols and settings are required for your LAN environment Configuring Network Environment Configure the Network ...

Страница 34: ...Click Use the following IP address in the General tab 8 In the Use the following IP address box enter your IP address subnet mask and Default Gateway 9 In the Use the following DNS server addresses box Enter your Preferred DNS server and Alternate DNS server 10 Click OK when you finish the TCP IP set up VIA Compatable Fast Ethernet Adapter Step 9 Step 8 LEO II 2 Windows XP English fm Page 25 Wedne...

Страница 35: ...k manufacturers guidelines Using the CD DVD ROM Drive Compact discs are designed so that you can easily insert one into the computer when you need it and then remove it DVD Notes A DVD player is a factory option and if you ordered this option you will have to install the provided DVD software to view the DVD Title 1 Press the button on the CD ROM or DVD ROM drive and the tray slides out Do not lea...

Страница 36: ...hole in the front of the CD DVD ROM and push it until the tray ejects A LED on the drive tray is on when the computer is reading from a CD Do not remove a disc when this LED is on To clean a CD DVD wipe from the center outwards with clean and dry cloth Remove the CD DVD when the drive activity LED is off 2 Insert a CD DVD label side up or remove a disc if you have finished using it 3 Push the tray...

Страница 37: ...ards To maintain your PC Cards follow these guidelines Keep cards away from excessive heat direct sunlight and liquids Do not drop bend flex or crush cards when handling Keep dust oil water and magnets away from PC Cards When a card is not in use carry it in its protective carrying case Some PC Cards include cables that extend from the back of the cards Be careful not to bend or put excessive stra...

Страница 38: ...move PC Cards or you may lose data that is being stored to a card 1 Click icon on the taskbar 2 Select the card currently in use and click the Stop button The eject button for the card slot operates in two steps therefore to remove a PC Card 3 Push the eject button once to pop it outward then push the eject button again to eject the card 4 Pull the card out of the PC Card slot Eject button PC Card...

Страница 39: ... to close the drive tray The Windows Media Player button appears on the taskbar if not already there and the music begins to play If the disk does not play click Start All Programs Accessories Entertainment Windows Media Player CD LED On A LED on the drive tray is on when the computer is reading from a CD Do not remove a disc when this LED is on Removing the Audio Multimedia CD To remove the CD fo...

Страница 40: ...Movie Maker Volume Control Using the Keyboard You may only turn the Mute on and off Use Fn F8 to Mute and repeat to turn the Mute off Using the Volume Control Icon Double Click icon in the active program tray The Volume Control window pops up Use this window to adjust the volume You can pop up a simple volume slider by a single click icon Using the Wheel Volume Control Simply turn the wheel locate...

Страница 41: ...Status LED When the battery is fully charged the LED changes to green When you use a new battery pack for the first time or use a battery after a long period of storage the initial battery life is shorter than normal Normal battery life resumes after a few discharge recharge cycles Follow these rules for charging your battery A battery normally discharges power when not used for long periods of ti...

Страница 42: ...deo CDs unless absolutely necessary Adjust LCD Brightness Reducing the LCD display brightness will reduce the power consumption of the battery However the computer will automatically reduce the brightness after 20 minutes of inactivity The screen will be returned to original settings when you resume using the computer To reduce the LCD display brightness use the key Fn F9 combination Power Managem...

Страница 43: ...r details on safe battery disposal If you replace your battery with a new one Keep the old battery out of the reach of children Dispose of the old battery promptly Make sure that you follow all local requirements when you dispose of the old battery Removing the Battery Your computer comes with the battery pack inserted in the computer To remove the battery from the computer 1 Turn the computer s p...

Страница 44: ... Make sure the battery is fully inserted into the compartment You will hear the battery latch click which will secure the battery in place Monitoring the Battery Charge Battery life is affected by factors such as the power management settings in System Setup the applications you use and the brightness settings of the LCD Under normal usage the battery charge lasts approximately 3 hours Battery lif...

Страница 45: ...o 3 you will get a Low Battery popup window informing you to connect to AC power You can adjust the battery alarm features by using the operating systems power management program Control Panel Power Options in Windows If you cannot run your computer from the battery and the battery will not charge when you attach the power cord the problem may be that The battery temperature is below 10 C or over ...

Страница 46: ...e parameters mean seek help from a person who is knowledgeable Incorrect settings may cause your system to Crash Starting System Setup To start System Setup turn on your computer and then press and hold until the System Setup screen appears The top of the System Setup screen has a menu bar with the selections listed in Table 5 To start System Setup turn on your computer and then press F2 and hold ...

Страница 47: ...us Pressing the ESC key at the Main menu brings you to the Exit menu Minus Scrolls backwards through the options for the highlighted field Plus Scrolls forward through the options for the highlighted field F9 Sets the parameters for the current menu to their default values F10 Sets the parameters for the current menu to their previous values Enter Executes commands or opens a submenu LEO II 2 Wind...

Страница 48: ...owing 1 At startup press F2 to open System Setup 2 Use Right Arrow to select the Advanced CMOS Setup menu 3 Highlight the 1st Boot Device option with Up Arrow or Down Arrow keys 4 Press Shift Plus keys until the option moves up in the list to the desired position or press Minus key until the option moves down in the list to the desired position 5 Press Esc to return to the Exit menu 6 Press Enter ...

Страница 49: ...em Setup fields If multiple users have access to the computer such as in a network environment a supervisor password can prevent unauthorized access to certain security options Choose the type of password security that is appropriate for your work If You Forget Your Password It is very important that you do not forget your password If you do you cannot access your system Write your password down a...

Страница 50: ...ord security that is appropriate for your work If you want to set a user password you must set a supervisor password first 3 Use Down Arrow to select Set Supervisor Password or Set User Password 4 Press Enter The Set Password dialog box appears 5 Press Enter after you have typed your password The computer prompts you to reenter your password for verification 6 Type your password again and press En...

Страница 51: ... you to enter the current password 6 Press Enter The computer prompts you to enter a password Do not type anything 7 Press Enter The computer prompts you to re enter the password Do not type anything 8 Press Enter A message appears telling you that the changes have been saved 9 Press Enter again to return to the Security menu 10 Press Esc to go to the Exit menu 11 Press Enter or F10 to exit and sa...

Страница 52: ...nagement Schemes This section discusses the basic schemes of power management when the computer is operating on battery power or using AC power Standby vs Hibernation Standby unlike hibernation mode does not store unsaved information on your hard disk it s stored only in the computer memory If there is an interruption in power the information is lost So before putting your computer on standby you ...

Страница 53: ...al a Hibernate Mode Power Management or Manual Method When hibernation is used your computer turns off and when you power up again everything is restored exactly as you left it including programs and documents you may not have saved or closed Everything in memory gets saved to the HDD and the monitor and hard disk get turned off Frequent Interruptions If you experience frequent interruptions you m...

Страница 54: ...waiting for the computer to restart Standby turns off your monitor and hard disks placing your entire system in a low power state When you return to your computer restores your desktop exactly as you left it It is recommended that you do not enter standby mode with less than 20 battery power 5 Click OK to set your power management options and close the window Rest Key The manual Fn F11 key combina...

Страница 55: ...ns 4 Select the mode Do nothing Ask me what to do Standby Hibernate Shut down assigned to the Power button and or Rest F11 key Rest Key The manual Fn F11 key combination will not activate Standby or Hibernate modes whilst you are playing a multimedia program or have an active USB device connected 5 Click OK to set your power management options and close the window You can return to normal operatio...

Страница 56: ... old hard drive For system boot with CD ROM under the Boot menu in System setup set Bootable CD Check to Enabled and set Boot Device Priority is ordered starting from the DVD CD ROM When you are ready to install the new HDD use the Recovery CD ROM to install the device driver Re Installing Windows and Device Drivers Use System Recovery CD to re install OS and System Software CD to re install devic...

Страница 57: ...xels individual dots displayed on the entire screen In general the more pixels the LCD can display the better the image The number of colours the LCD can display is measured by how many bits the LCD uses to represent each pixel 16 bit colour can support 64 K 65 536 colours 32 bit colour can support 16 M 16 8 million colours All these video modes can be displayed on an external monitor However if y...

Страница 58: ...s screen appears 4 To change the colour depth click the arrow next to Colour palette and select the available colour depth you want 5 To change the resolution click and drag the slider under the Screen area until you select the available resolution you want 6 Click Apply 7 Click OK if satisfied with the changes Adjusting the LCD Display You may wish to adjust the LCD Liquid Crystal Display when yo...

Страница 59: ...onnect the external monitor to the connection on the back of your computer 2 Press the Fn F5 key combination the LCD will be duplicated on the monitor or television Fn F5 key combinations Each time you use the Fn F5 key combination the LCD Monitor combination changes as follows Both displays are displaying the computer output Monitor or television only is displayed the computer output LCD only is ...

Страница 60: ...hard drive Optional hard drives are available to fit in the hard drive compartment Max height 9 5 mm A DVD ROM drive module Factory option A CD RW drive module Factory option The options that are available may change periodically Contact your reseller for updated information on current and new options LEO II 2 Windows XP English fm Page 51 Wednesday June 19 2002 3 36 PM ...

Страница 61: ...ton AntiVirus proceed as follows Click Start Programs Norton AntiVirus Norton AntiVirus 2002 Windows Help and Support Run Windows Help and Support to find problem that may be affecting your computer To run Windows Help and Support proceed as follows Click Start Help Reinstalling Software If for some reason your system crashes you may corrupt your HDD Windows Operating system and or some of your de...

Страница 62: ...pend or Rest mode Tap the touchpad to resume from Suspend or press the power button to resume from rest PC Card does not work correctly Make sure that the PC Card is inserted left side up in the PC Card slot Check that the card is inserted fully into the slot If you are using a PC Card modem check the modem cable connections Your ATA or Compact Flashcard do not work A patch is provided for these c...

Страница 63: ...rast controls on the monitor Does the program appear on the LCD panel instead of the external monitor If so press Fn F5 to switch to the monitor Try turning the monitor off and on again Only the LCD Display works when system returns from Power management mode while in Multimonitor mode The system resets to the original BIOS setup when the system returns from the power management mode If the Displa...

Страница 64: ...l 2 Double click the Display icon to open the Display properties 3 Select Settings 4 Click the Advanced button 5 Click the Adapter tab 6 Adjust the Refresh rate to optimal or other selections until you see the CRT clearly Problem Action My modem doesn t connect to services or disconnects during communication If your modem has difficulty in connecting to on line services and sustaining communicatio...

Страница 65: ...e ser vice your screen may display garbage characters or after images in screen transitions This problem is caused by a mismatch of the terminal modes be tween communications service and communications programs You need to match the terminal modes to each other Refer to the user s guide of the commu nications program you re using Reports error message that insufficient Hard Disk space is available...

Страница 66: ...ndard Installation Option will SAVE all user data files on your hard disk and restore your operating system to normal The User Installation Option will DESTROY all data on your hard disk If you have any data files or other software you do not wish to lose make a backup of these files to a diskette or other medium using a backup utility before proceeding Samsung is NOT responsible for any data loss...

Страница 67: ...0 G for 11 ms half sine Li Ion Ni Mh Smart Battery Li Ion Ni Mh Normal Weight 200 640g Nominal open circuit voltage 14 8 VDC 3600 mAh12 VDC 3800mAh Capacity typical 53 28 whr 45 6 whr Charging time approximate with computer turned off typical 5 5 hr 6 0 hr Charging time approximate with computer turned on typical 5 0 hr 2 5 hr Average battery life with no power management enabled 2 5 hr 2 0 hr Ext...

Страница 68: ...ic input output system C Centigrade CD Compact disc CD ROM Compact disc read only memory cm Centimeters COM Communication as in communication port CMOS Complementary metal oxide semiconductor DC Direct current DMA Direct memory access DPMS Display power management signaling DRAM Dynamic random access memory DSTN Double layer super twist nematic ECP Extended capabilities port EPP Enhanced parallel ...

Страница 69: ...isecond PDF Portable document format PC Personal computer PCI Peripheral component interconnect PCMCIA Personal Computer Memory Card International Association POST Power on self test PNP Plug and play PS 2 Personal System 2 RAM Random access memory ROM Read only memory SVGA Super video graphics array TFT Thin film transistor USB Universal serial bus V Volt VAC Voltage alternating current VCC Volta...

Страница 70: ...flash BIOS which means that it has been recorded on a flash memory chip that can be updated if needed Boot To start your computer A cold boot resets the entire computer and runs through all computer self tests A warm boot clears out computer memory only Boot disk A disk containing operating system programs required to start your computer A boot disk can be a floppy disk hard drive or compact disc ...

Страница 71: ...irectly access this memory without using memory management software Disk The device used by the computer to store and retrieve information Disk can refer to a floppy disk hard disk or RAM disk Disk cache A software device that accumulates copies of recently used disk sectors in RAM The application program can then read these copies without accessing the disk This in turn speeds up the performance ...

Страница 72: ...ed through an I O address I O address I O stands for input output Peripheral devices such as printers are addressed through the I O port address IRQ interrupt request line The IRQ is a hardware line that a device uses to signal the microprocessor when the device needs the microprocessor s services The number of IRQs is limited by industry standards LCD liquid crystal display The LCD screen on your...

Страница 73: ...mputer components to work with your system With this type of operating system you normally do not need to set jumpers on devices or set memory addresses or IRQs RAM random access memory The computer s system memory including conventional and extended memory You can write to and read from RAM Information stored in RAM is temporary and is erased when the system is turned off Refresh rate The refresh...

Страница 74: ...the computer TFT thin film transistor LCD A TFT LCD uses a separate transistor circuit to control each pixel This technology provides the best resolution for an LCD screen A TFT LCD is also sometimes called an active matrix LCD Zoomed video Zoomed video technology enables zoom video PC Card to transfer data directly from the card to video and audio systems without going through the microprocessor ...

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