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Apple 145B manual Checking that the Scsi chain is properly terminated

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Checking that the SCSI chain is properly terminated

To ensure accurate transmission of information, a chain of SCSI devices must have a terminator at each end. Terminators are built into some SCSI devices and can also be added externally.

SCSI terminator

mYour PowerBook’s internal hard disk, which is always the first device in the chain, has a small built-in terminator. However, for reliable information transfer in a chain of SCSI devices, it should be supplemented with an external terminator as described in these instructions.

mExternal SCSI devices from Apple do not have built-in terminators.

mExternal SCSI devices from other vendors may have built-in terminators; see the documentation that came with the device.

If you are attaching one SCSI device

Make sure that there is

man external terminator between the HDI-30 system cable and the SCSI device and

man internal terminator in the SCSI device, or an external terminator attached to the device.

If you are attaching more than one SCSI device

Make sure that there is

man internal terminator in the first external device, or an external terminator between the HDI-30 system cable and the first device;

man internal terminator in or an external terminator attached to the last device; and

mno other terminator (internal or external) in the chain.

If you have too many devices with internal terminators, your authorized Apple service provider can remove extra terminators.

Correct chain configurations are shown in the illustration on the following page.

226 Chapter 13: Expanding Your Computer System

Image 239

Apple 145B manual Checking that the Scsi chain is properly terminated, If you are attaching one Scsi device

Contents

Macintosh User’s Guide Apple Computer, Inc Contents Arranging your work space and equipment Choose a commandChapter Working on the DesktopChange the name of an icon Use the Trash ContentsOpen a document Change a document Save your work so far Make more changes Quit a programPart Setting Up Your ProgramsUsing Disks 146 139141 Specifying which items you want opened at startupOther ways to use the LaserWriter Font Utility Printing the contents of a window or the desktopControlling background printing Working with fonts 184196 Connecting to a shared diskChanging your password 214 Using access privilegesAccess privilege strategies Setting Scsi ID numbersMaking a window the active window Shift-click240 Moving, copying, and renaming an iconInitializing a disk in MS-DOS format Using Caps Lock Typing special characters and symbolsAppendix C Map Xiv Radio and television interferenceWelcome to Macintosh How to Use This BookPage Setting Up Your Macintosh PowerBook Power adapter port Setting Up Your Macintosh PowerBook Setting up the computerPlug in the power adapter Slide the latch to the right and lift up the display Open the displayTurn on the computer Power buttonContrast control Brightness control Trouble?What to do next Microphone optional Reset buttonSpeaker Elevation feet Printer port ´ Interrupt buttonBacking up your hard disk Why back up?What you need Make the copy Insert metal end first Click the appropriate choice, as followsInsert a high-density floppy disk into the disk drive If something happens to your hard disk Off Turning the PowerBook on and offTo turn the PowerBook off Conserve power when you won’t be using it for several hoursAutomatic sleep To put the PowerBook to sleepSleep On/off summary To turn the PowerBook onWhen the PowerBook is on, you can do your work Trash icon An icon near the lower-right corner representing the TrashChoose Restart from the Special menu Press and release the reset buttonRestarting a computer that’s already on Restart from a floppy disk Hold down the power button for 5 secondsTake the Macintosh Basics tour first Adjust the screen brightness and contrast controlsLearning the basics Before you beginStarting the tour from the hard disk Finding the tourContinues Now your screen should look like the following illustration HhhHh h h After a moment, your screen should look like this Starting the tour from a floppy diskHh h h Do not use the computer in or near water ± WarningDo not drop or jar the computer Do not touch the screen with any sharp or pointed objects Do not use the computer in wet or dusty environmentsHealth concerns associated with computer use Repetitive stress injuries Change hand positions often to avoid fatigue Arranging your work space and equipmentChair Keyboard and trackballBuilt-in display MouseGeneral suggestions Page Working on the Desktop Point Use the trackballClick Press Drag Telling the Macintosh to do something involves two steps Choose a commandDots, indicating that it has been opened Open an iconClick the startup hard disk icon to select it Look at the contents of a window Continues Size box Working on the Desktop Make a window larger or smallerActive window Zoom box Click the zoom box near the right end of the title barClick the zoom box again Move the hidden contents of a window into view Scroll arrow Horizontal scroll barClose box Close a windowClick the close box Scroll boxTitle bar Move a windowPoint to the title bar of the active Macintosh HD window Icons represent containers What’s on the desktop?Working on the Desktop Memo Windows let you see what’s inside containersMenus offer you choices Windows let you see what’s inside all these containersModifier keys Modifier keysArrow keys Page Make sure that your computer is on How to switch between programsWhy it’s important to save your work, and how to save it TeachText menus Open a programOpen the Macintosh HD icon Open the TeachText iconChoose Save from the File menu Create a documentSave your work You will be changing this text later in this chapterClick Save Switch programsType Opening Lines Here is another way to make a program active Hh hClose the Opening Lines window Close a documentBecause most Macintosh programs work in similar ways Open a documentNext step describes a different way to open an icon Now you’re ready to change the text Change a documentWith people selected, type the words human beings Click the trackball button onceNow you’ll rearrange some text Save regularly, and save often Save your work so farTaking a shortcut Make more changesWith each other selected, type one another Hh hWith togetherness selected, type brotherhood Quit a programQuitting a program Prompts you to save your work Make a copy of a documentClick the Opening Lines icon to select it To use memoryChoose Duplicate from the File menu Change the name of an iconPressing Return saves the new name Use the TrashPress the Return key Close the Trash window by clicking its close box Open the Trash iconChoose Empty Trash from the Special menu Click OKWorking With Disks Working With Disks Insert a floppy diskDouble-sided 800K disk Second holeFloppy disks and hard disks Another dialog box appears Initialize a diskRead the message on your screen Type Practice Click EraseThird dialog box appears Copy the contents of a disk Close all the windows on the Macintosh desktop Open the Practice folder iconTake a floppy disk out of its drive Protect the contents of a disk Lock the program disk On your own Install your programsLook for a System Folder in the program folder Throw away extra System FoldersLearning More About Your Computer Choose Control Panels from the Apple K menu Open the Battery desk accessoryOpen the PowerBook control panel To open the PowerBook control panelMany Macintosh programs also have Balloon Help Open the PowerBook iconUse Balloon Help Turn on Balloon HelpPoint to the File menu Turn off Balloon HelpClick your hard disk icon to select it At this point, you could Start learning how to use your application programsUse Part III of this book Page Reminder Back up Reinstalling system softwareSetting Up Your Programs Installing your programsInstalling programs without a floppy disk drive Press the Return key on your keyboard to continue Installing system software from floppy disksInsert the remaining disks as the computer prompts you Checking for computer virusesOpen programs Finding out what programs are openIf you give information to other computer users on disks Hiding and showing windows on the desktop Switching programsPreferred size must always be larger than Minimum size Close the Info windowDeleting items from the Scrapbook Using the ScrapbookStoring items in the Scrapbook Copying items from the ScrapbookCreating a RAM disk Using a RAM diskRemember a few precautions if you use a RAM disk Drag the slider to 0% if you want to remove the RAM disk Erasing a RAM diskResizing or removing a RAM disk Drag the items you want to the RAM disk icon101 Monitoring the battery charge levelUsing the Battery desk accessory What you should know Responding to low-power messagesBattery desk accessory appears What you should doPower adapter port Power Management Recharging the batteryRecharging with the power adapter Plug in the power adapter as shownPower Management Recharging with a recharger To recharge a battery, follow these stepsBattery Hours Batteries Removing or replacing the batteryPlace the battery in the recharger as shown Door is physically attached to the batteryReplacement batteries come with a door attached Maximizing battery life Keep virtual memory turned off in the Memory control panel Ways to conserve battery powerMaximizing work time Your computer’s printer or modem port is in use Adjusting the battery conservation settingsClose the PowerBook control panel Easiest approachSystem Hard disk Using the battery conservation optionsDon’t sleep when plugged More about automatic sleepTo turn processor cycling back on, click Allow cycling Processor cyclingInitializing a hard disk Preparing a new disk for useName Using DisksClick Initialize Click Init to initialize the hard disk Type a name for the disk Initializing a floppy diskThird message asks you to name the disk Click the icon of the disk you want to erase Erasing a floppy diskDesignating a startup disk Internal hard disk Protecting the information on a diskScanning order for startup disks Locking a floppy diskLocking a file Backing up your files Click the appropriate button Using PowerBook 145B Backup for the first timePowerBook 145B Backup program opens Hh h Using PowerBook 145B Backup to update your backup copyClick the Continue button Unlock the disk labeledInsert the disk into the floppy disk drive Make sure your Macintosh is off Locate the PowerBook 145B Restore iconRestoring the information on your hard disk Make sure you insert disks in the correct order Open the PowerBook 145B Restore icon by double- clicking itA moment you’ll see this screen Respond to any messages you see on the screenRestoring your System Folder If you can’t save files on a floppy diskDisk is ejected and its icon disappears from the desktop Ejecting a diskIf you can’t eject a floppy disk All three methods also work with CD-ROM discsIf a hard disk icon doesn’t appear Testing and repairing disksHard disk precautions Caring for disksUsing Disk First Aid Click Open Scsi ID number Testing a hard diskFor assistance if necessary Hard disk’sStraightening up your files Type a name for the folder and press Return Using folders to organize your filesCreating and naming folders Choose New Folder from the File menuName for your Its contentsDisk named above it Desktop, including other disks Choose Make Alias from the File menu Making items easier to findCreating an alias Uses for aliasesClick the Find Original button Installing an item in the Apple menuMoving an item to the desktop Locating the original of an aliasClick the Find button Finding an itemFinding an item by name Choose Find from the File menuDate here One at a time Finding an item using other criteriaSearch Type text or set List view Indentation means that an item Outline Location for the searchItems found are shown highlighted in an outline view Ways to use the Find commandFinding items that meet two criteria Creating a template or stationery HhhhFile’s Info window View menu Using the Info windowGet Info command displays information about a selected item Getting information about your filesType of list displayed is underlined Using the View menuAssigning a label to a file On another hard disk Tips on transferring filesOn floppy disks 145 Adapting Your Computer to Your Own UseTo have a program or a document open automatically when Installing an item in the Apple menuInstalling files in the System Folder Specifying which items you want opened at startupDesktop Removing files from the System FolderMacintosh Changing the items in the Label menu Setting the time and dateNumber Choose Alarm Clock from the Apple K menuChanging time and date formats Turning the alarm offClick OK to close the control panel Changing the date formatDialog box that appears, make the changes you want Make the changes you want Changing the time formatMake the changes that you want Close the control panel Type the currency symbol here To place the currencyClick the double-clicking speed you want Adjusting the way the trackball or mouse worksKeyboard layout you want to use For the delay you wantDown, click the button for the rate you want Button, the keys don’t repeat at allSticky Keys Key has been Adjusting the keyboard for very slow typingMaking keyboard shortcuts easier to type ModifierClick the button for the blinking rate you want Adjusting the blinking of a menu itemChanging the way the contents of windows appear Select the picture you want to use for the icon Changing an iconYou can turn off this warning in the Trash’s Info box Turning off the Empty Trash warningRemember the following tips on memory management Managing memoryChecking memory use Making the most of your memoryAdjusting the disk cache Virtual memory Using hard disk space as memoryMacintosh HD Total memory includesTurning on 32-bit addressing Close the Sound control panel Setting the beep soundDrag the slider up or down to set the volume Click the beep sound that you want your computer to useRemoving a sound Installing a soundYour computer Recording soundsType a name for the sound, and click OK Changing the background patternContinues To save the new pattern, double-click the sample pattern Magnifying the screen imageTo turn CloseView on or off, press x-Option-O On or off 173 Before you printChoosing a printer Printing If your printer is connected directly to your computerIf your printer is connected over a network Close the Chooser windowNetwork that has zones Choose Chooser from the Apple K menuClick the icon of the printer you want to use Close the ChooserPercentage Select enhancements Original’s hsize Selecting Page Setup optionsPrinted copy as a Make sure that the hard disk indicated is the correct one Easy Install dialog box appearsUpdating printer software on networked computers Paper-feed Printing your workChoose Print from the File menu Printer software availablePrinting the contents of a window or the desktop Make sure that the printer is turned on and warmed up Solutions to common printing problemsCheck the cable connections to the printer Controlling background printing Outline fonts and bitmap fonts Working with fontsInstalling fonts Locate and open the LaserWriter Font Utility icon Removing fontsTransferring fonts to a LaserWriter printer To the printer Choose Download Fonts from the File menuClick Done Printer or its hard diskClick Initialize Finding out about available fontsOther ways to use the LaserWriter Font Utility Initializing a hard disk attached to a printerTurning the printer’s start page on or off Restarting a LaserWriter printerType a name for the log, and then click Save Transferring a PostScript file to a LaserWriter189 What networking offersUsing Your Computer on a Network Setting up your computer on a networkPrinter port Icon Connecting to a networkTurning on AppleTalk Naming your computer and its owner Close the Sharing Setup control panelAppleShare icon Connecting to a shared diskYou are not Click the name of the computer you want to useClick OK Click Guest or Registered User Capitalization does not need to matchIcon of the shared disk appears on your desktop Disconnecting from a shared diskClick the name of a shared disk to select it These Connecting quickly to a shared diskConnecting automatically when you start up Connect to a shared diskClick OK Close the Chooser Changing your passwordWorking with files and folders on other computers Creating a new folder on another computerClick here to change Your passwordBullet appears for each letter you type Click OK Click OK in the dialog box that appearsUser or group that you named assumes ownership immediately Sharing your own filesGiving folder ownership to someone else How file sharing worksOpen the Guest icon Turning on guest accessTurning file sharing on Section labeled File Sharing, click the Start buttonClose the window and click Save in the box that appears Selecting a folder or disk to shareAny shared folder or disk can be made private again Taking back a shared folder or diskTo register more users, repeat steps 2 Naming a registered userType the name of a person you want to register Close the window, and then click Save in the dialog box Setting a registered user’s passwordType a password in the User Password box, then press Tab Naming a group of usersYou don’t need to include the Guest icon in any group Seeing who’s in a groupDrag user icons to the new group icon To see the names of all group members, open the group iconClose the window and click Save in the dialog box Selecting a user or group to share a folder or diskTo deny access to guests, open the Guest icon Removing a user or group from your list of registered users Removing a user from a groupTurning file sharing off Giving away ownership of a folder or disk on your computerTo turn file sharing off immediately, type the number Monitoring file-sharing activitySection labeled File Sharing, click the Stop button Gaining access to your computer from another computer Disconnecting someone who is connected to your computerOpen the owner icon the one with the bold outline Understanding access privileges Using access privilegesSelect a folder or disk Choose Sharing from the File menu Setting access privileges to folders and disksThere are three types of access to shared items See Files allows people to see, open, and copy filesTo prevent the folder from being changed, place an Access privilege strategiesChoose a registered user or group to share the item with Using Your Computer on a Network Plain tab indicates that you can open and use the folder Checking your access privilegesFolder Using Your Computer on a Network Working with privileges that others have setSelect the program you want to link to Linking programsLinking to a program on another computer You can only link to programs that are sharedThen you make a program available for linking by sharing it Disconnecting a program linkAllowing other people to link to your programs Two programs are now linkedIf the box is dimmed, the program does not support linking Turning program linking onSelecting a program for linking Open the programNaming specific users to link to your programs Allowing guests to link to your programsScsi port Scsi port icon 223 Using Scsi devicesScsi port on Macintosh PowerBook computers looks like this Expanding Your Computer System Installing softwareSetting Scsi ID numbers Check the ID numbers of all the devices you want to connect Small hole gives you access to the ID number switchID number indicator ID number switch Make sure the Scsi device is turned offIf you are attaching more than one Scsi device Checking that the Scsi chain is properly terminatedIf you are attaching one Scsi device Terminator Connecting cablesIllustration shows where to add cable terminators Repeat for each additional device you want to connectExternal modem is ready to use Connecting a modemConnect the modem to a power source and to the phone line See the documentation that came with the modemConnecting a mouse or other ADB device Connecting a printerOpen the door covering the back panel of your computer Connecting a microphoneDecide where you want to place the microphone Sound output devicesAdding memory to your computer 233 Traveling with the PowerBookDo not check your computer as baggage. Carry it with you Store the computer in a cool, dry place Storing the PowerBookShort-term storage up to 2 weeks Long-term storage more than 2 weeks Service and supportIf the PowerBook malfunctions or is damaged Plug in the power adapter or use the rechargerCanada How to get helpApple Computer, Inc Apple Canada, Inc Customer Relations Mariani AvenueApple Technical Library For more information about Macintosh computersMacintosh user groups Technical informationAssistance for hardware and software developers ApdaSelecting icons Double-clickShift-click Working with iconsMaking a window the active window Working with windowsOpening an icon Moving, copying, and renaming an iconOpening higher-level folder windows Scrolling through the contents of a windowFrom here Using the outline form in list viewsWorking with menus Menu bar youTo choose an item in a submenu Choosing an item from a menuChoosing an item from a submenu Selects the next item in the direction of the arrow KeyActionPowerBook TroubleshootingComputer just stopped Battery is draining too fast PowerBattery can’t be recharged Screen looks blurred or out of focus ScreenScsi devices MemorySee for more information about working with Scsi devices Disk drives and disksHard disk keeps stopping and starting again You can’t delete a file on a floppy disk Printer may be turned off. Turn it on ModemsPrinters Network printer keeps restarting Networks You can’t open a shared disk or folder Application programsMessage says that a program could not be found 259 Outlined buttonAppendix a Keyboard and Character Sets Using Caps LockTo turn Caps Lock on or off, press the Caps Lock key Option-c CharactersAvailable 263 Initializing a disk in MS-DOS formatInsert a blank disk into your floppy disk drive Appendix B Exchanging Disks and Files With MS-DOS Computers Type a name for the disk, and then click OKChoose Quit from the File menu Title or disk Converting files to and from MS-DOS formatMenus DirectoryClick Translate Pull down the translation menu you wantItem is checked Dimmed when thisOther file-conversion options 269 Setting your locationYour current location is indicated by a blinking cross Comparing locationsClick the Set button Finding a location Click the Add City button Adding or removing a locationAdding a location Changing or removing a locationPage Apple Technical Library Apple II ProDOS file format 263 About This Macintosh command 161, 164 Accent marks, typingAmplifiers Pulling downArrow keys 53, 244 PowerBook 145B Restore program 8, 119Battery Conservation settings 87, 109-112, 248 Application menu248 Beep sound Blinking rate Safety instructionsControl panels Dragging an object on Files without a floppy disk drive 92 iconsDelete key 57, 259 deleting DesktopExtras folder Adjusting speed of 154 icons 62, 96 selecting text byErgonomics. See comfort tips error messages Converting to and from stationeryProgram versus document 51-52 RAM disk Sharing command 199, 201-202, 206, 209209 Changing your password 197-198 Backing up 8-12 Closing 60186-188 FinderAliases for Font menu FontsCaring for PasswordsInstalling programs on 78-79, 82-83, 92 Overview 51 Folder ownershipTypes of 50-52 ID numbers. See Scsi ID numbers ImageWriter Adjusting blinking of 157 positioningInstalling Key Caps desk accessory 186, 260-261 kilobyte KMemory RAM virtual memory adding Background printing with 181 choosing ConnectingMacintosh desktop computer, connecting to Setup options for 176 printing on 178-179 restarting212-213 Accessing your own computerModems Mouse control panel 154 moving Icons 135, 240 textPower adapter port 2 PowerBook 145B Backup program 6 Network administrator 190, 193, 197, 198 Network iconSetup options 176-178, 180 passwords Changing your own 197-198, 212-213 troubleshooting TypingDisconnecting Hard disk sleep adjustment 110, 111, 248System sleep adjustment 110, 111, 248 Installing 174Adding Installing without a floppy disk drive 92 linkingQuit command RAM. See random-access memory RAM RAM disk Opening 56Scroll bars Save As command 133 Save command 57-58, 66, 140 savingRegistered user System Folder itemsNetwork Connecting 227Setting up computer 1-6. See also peripheral devices Scsi icon 223Startup disk Software drivers 224Speakers 7 Special characters, typing Special menu From floppy disksTranslator files 263 System failures 247System Folder. See also foldersOn program disks On startup disk 83, 91 Undo command 258 unlocking Files Application programs 92, 257-258 batteryModems Networks 212, 254, 255, 256-257 passwords Automatically connecting to a shared diskHiding and showing program 96 moving 49-50 Finding lostApple Publishing System