Introduction To Computer Hardware
Introduction to Computer HardwareDesktop PC: A computer that is flat and usually sits ona desk. The original design for a home computer.Tower PC: A computer that is upright--it looks likesomeone took a desktop PC and turned it on its side. Incatalogs, the word desktop is sometimes used as aname for both the flat design style pictured above andthe tower design.Monitor: The monitor is a specialized, high-resolutionscreen, similar to a high-quality television. The screen ismade up of red, green and blue dots. Many times persecond, your video card sends signals out to yourmonitor. The information your video card sends controlswhich dots are lit up and how bright they are, whichdetermines the picture you see.Keyboard: The keyboard is the main input device formost computers. There are many sets of keys on atypical “windows” keyboard. On the left side of thekeyboard are regular alphanumeric and punctuationkeys similar to those on a typewriter. These are used toinput textual information to the PC. A numeric keypadon the right is similar to that of an adding machine orcalculator. Keys that are used for cursor control andnavigation are located in the middle. Keys that are usedfor special functions are located along the top of thekeyboard and along the bottom section of thealphanumeric keys.Page 1
Mouse: An input device that allows the user to “pointand click” or “drag and drop”. Common functions arepointing (moving the cursor or arrow on the screen bysliding the mouse on the mouse pad), clicking (usingthe left and right buttons) and scrolling (hold down theleft button while moving the mouse).http://www.ckls.org/ er Board: The main circuit board inside thecomputer--the big green panel that sits on the bottom ofa Desktop PC or along the side of a tower. All the mainparts of the PC plug into the motherboard to share data.Processor (CPU): The chip that performs the majorityof calculations and instructions needed to make yourcomputer run. The processor is attached to themotherboard. It is often called the computer's "brain."Memory (RAM): (Random Access Memory) Fastcomputer chips that temporarily store information whilea PC is in use. These chips are the computer's shortterm memory used to run applications. Most new PCshave at least 128 megabytes of memory.Hard Drive: The main storage area inside yourcomputer (usually called a C: drive). The hard disk orhard drive stores your computer's operating system, theprograms that are installed on your computer, and mostof your files. Hard drive capacity is measured ingigabytes. Most new computers have at least 20gigabytes of memory.Page 2
Floppy Disk: A 3.5" square holding a flexible magneticdisc that holds information or data. You need a floppydrive (usually called an A: drive) to read the floppy. Afloppy disk can hold only 1.44 megabytes, but it isportable and allows you to make extra copies of yourfiles.CD-ROM: (Compact Disk Read-Only Memory) Aremovable disk which can store large amounts ofinformation. Because it is Read-Only, new informationcannot be saved to it. Requires a CD-ROM drive(usually called a D: drive) to read the information. ACD-ROM can hold 650 - 800 megabytes of information,much more than a floppy disk can hold. Some newcomputers have a CD-RW (Compact Disk ReWritable)drive which allows the user to save information onto aCD. This is done with lasers in a process called“burning”. Once the information is saved onto the CD, itcan be read on any CD-ROM drive.Floppy iveSound Card: A device that can reproduce almost anysound, including music, speech, and sound effects. Acomputer must contain a Sound Card in order toproduce sounds. You can attach speakers and/or amicrophone to the sound card.Modem: A device that translates data from your PC intoa form that can be sent to other computers over regularphone lines. The modem also receives signals fromother computers and converts it into something yourcomputer can understand. A modem is the device mosthome computers use to connect to the Internet.Page 3
Putting It All TogetherYou (Computer Operator)Operating System (GUI)Programs rSpeakersKeyboardMouseScannerModemInternet ConnectionPage 4
Bits, Bytes, Kilobytes, Megabytes & GigabytesBit: We measure the information stored in a computer's memory and diskdrives using bits. A bit is the smallest unit of measurement.Byte: 8 bits grouped together equal one byte. A byte is still a very smallpiece of information--one byte is equal to one character or one letter of thealphabet. Since a byte can only hold a very small piece of information, weoften think in terms of kilobytes, megabytes, and gigabytes.Kilobyte (KB): Normally defined as 1,024 bytes, although many peopleround it to 1,000. An average word-processing document will consumeabout 100 kilobytes.Megabyte (MB): Defined as roughly 1,000 kilobytes or 1,000,000 bytes.While documents are usually measures in kilobytes, whole programs aremeasured in megabytes. A few years ago, when you purchased a newprogram at the store, it most often came on a floppy disk. Each floppy diskholds up to 1.44 megabytes of information. Programs were smaller then, soyou would only need a few disks to hold the whole thing. These days, thesize of programs have become much bigger, so that virtually all newprograms come on CD-ROM. A CD-ROM can hold over 650 megabytes!Gigabyte (GB): Defined as roughly 1,000 megabytes. The increasing sizeof programs has resulted in larger hard drives. Hard drives used to bemeasured in megabytes -- a computer from 1988 might have had a 30megabyte hard drive! Now, the average hard drive in a new computer isabout 20 gigabytes.1 Bit1 Byte1 Kilobyte (KB)1 Megabyte (MG)1 Gigabyte (GB)Smallest Unit8 Bits1,000 Bytes1,000 Kilobytes1,000 MegabytesPage 5
Average WordProcessingDocumentA one page, single-spaced 20 KBletterFloppy Disk1.44 MB (or 1440 KB)CD-ROM650-800 MB(or 650,000–800,000 KB!)Hard DiskSize varies, but a newhard disk is typically 20GB (or 20,000 MB or20,000,000 KB!).Page 6
Storage vs. MemoryStorage refers to where your computer keeps all the data/information that ituses (i.e. any programs that you might run, files that you have created, orthe computer’s operating system). Your 3 main storage locations are:1. The Hard Drive or C:\ Drive2. The Floppy Drive or A:\ Drive3. The CD-ROM Drive or D:\ Drive.Hard DiskFloppyThe computer’s operating system and mostfrequently used programs (such as Microsoft Word) are stored on the hardCD-ROMdisk. You might also store documents and other files you’ve created onthe hard disk. Floppy disks are used to store files you’ve created so that you mightwork on them in multiple locations. They are also a good way to back up importantinformation on your hard drive. CD-ROMs are used to store large programs. A CDROM can store over 650 MB of data, but remember that you can only save newinformation if it is a CD-R (because the ROM stands for “Read Only Memory”).Memory chips are the fast computer chips used to temporarily storeinformation while a PC is on. Hard disk space, however, is what thecomputer uses to store unused files and programs. When thecomputer is on and you are running programs, these programs aretemporarily held in the computer's memory for easy access. Whenthe computer is turned off, the hard disk still holds all your files andprograms, but the memory is emptied.MemoryThink of the difference between storage and memory as the difference betweencabinets and drawers in your kitchen and your kitchen countertop. The storage areas inthe computer are like cabinets and drawers in your kitchen. When you are not cooking,your pots, pans, bowls and ingredients are all stored away in cabinets and drawers.When you are preparing a meal, however, you take things out of their storage placesand put them on the countertop to use them. The countertop here is like the computer'smemory. When you are finished cooking, the ingredients, pots, pans, and bowls all goback to their storage areas because you no longer need them and your countertop iswiped completely clean.Most computers today have at least 128 MB of memory, which means that yourcomputer can handle up to 128 MB of information at a time.Page 7
What is an Operating System?An operating system links you to your programs (also called applications or software)and then links your programs to the computer's hardware. It controls how the computerdoes its most basic tasks, like storing files or talking to printers.Microsoft Windows XP is an example of an operating system. It uses graphics(pictures) to connect you to the computer's hardware and software in an easy-tounderstand (hopefully!) way. Microsoft Windows XP also comes with many free, built-inprograms that can help you create documents, movies and images, calculate figures,enjoy some music, browse the Internet, or play a few games.Other examples of operating systems:1. Windows 2000/NT: these recent versions of Windows are commonly used forcomputers that are networked together2. DOS, Windows 3.0, Windows 95, Windows 98 and Windows ME: olderMac OS: operating system used by Apple Macintosh computersPage 8
Exploring the DesktopIconsStart ButtonTaskbarNotificationAreaDesktop: The opening screen in Windows XP. It contains Icons, the Start Button, theTaskbar, and the Notification Area.1. Icons: Small pictures that represent the things you work with when you are usingyour computer. Icons can represent files, programs, folders, disk drives, ControlPanel tools, shortcuts, or the Recycle Bin.2. Start Button: The button found at the left end of the Taskbar that is labeled Start.Click here to open the Start Menu, where you can open other programs and menus.3. Taskbar: The bar that appears at the bottom of the desktop. It shows you whatprograms or tasks are open. In the picture above, the Taskbar shows that theprogram Microsoft Word is open.4. Notification Area: The area found at the right end of the Taskbar. It can give youquick access to changing your computer's volume, display properties, or mousesettings. It also displays the current time and date.Page 9
Working in WindowsWhat is a Window? A Window is a rectangle on your screen that organizes howyou view and work in specific programs or view files on your computer.MinimizeMaximizeButtonButtonTitle BarCloseButtonMenu BarScrollBar1. Title Bar - horizontal bar at the top of a window that holds the window's title or the name of theprogram you're using2. Menu Bar - bar located under the title bar that lists available menus3. Status Bar - bar at the bottom of a window that displays how many objects or icons are in thewindow4. Minimize Button - shrinks your window to a button on your taskbar5. Maximize Button - enlarges your window to completely cover your screen6. Close Button - closes an open window7. Scroll Bar – the rectangle at the side or bottom of the window that allows you to guidethrough the contents of a window (it will appear when there are a many files to displayPage 10
To maximize a window:1. Click on the window'sMaximize Button.2. Your Window willexpand to itslargest possiblesize.Page 11
To restore a window:1. Click on theRestore Button.It looks like twoSquares lockedTogether.2. Your window willnow return to itsprevious size – amedium size.Notice how theScroll Bardisappears. Youdo not need itbecause thewindow is bigenough to showall of the objects.Page 12
To minimize a window:1. Click on theMinimizeButton inthe topright handcorner ofyourwindow.2. Your window willshrink to a buttonon the Task Bar.In this picture, Ihave two documentsminimized: MyDocuments andUsing WindowsTGH 3. To recall or activate aminimized window, clickon its button on the TaskBarPage 13
To resize a window:1. Move your mousepointer to thecenter of theWindow andClick once. 8Sizing Boxesappear. One ineach corner, andone in the middleof each side of thewindow.WindowBorderSizing boxeswill appearWindowBorder2. As soon as a doubleheaded arrowappears, hold yourmouse button downand drag the windowto the size you want itto be.3. This is how little I could makethe My Documents windowwhen I resized it!Page 14
Exploring the Start MenuYou can find the Start Button in the corner of your screen. Just like the namesuggests, this is an excellent place to start your work. When you click on theStart Button, a special list called the Start Menu appears.Start MenuStart ButtonPage 15
Start Menu Options:1. All Programs - Point your mouse here to see what programs (or applications) areinstalled on your computer.2. Programs - See a list of the last 8 programs you used. This is a quick way to get backto a file you have been working on.3. My Documents – Point your mouse here to see this folder that holds files saved here.4. My Pictures - Point your mouse here to see pictures saved in this location.5. My Music - Point your mouse here to see music files stored here.6. My Computer - Point your mouse here to see Shared Folders, Hard Disk Drives andCD – Removable Devices7. My Network Places – Allows you to program your computer on a network8. Control Panel - Allows access to Appearance and Themes, Network and InternetSettings, Sound, Speech and Audio Devices, Performance and Maintenance, Add orRemove Programs, Users Accounts, Printer and Other Hardware Settings, Date andTime Settings, and Accessibility.9. Connect To – Pint here if you want to connect to your ISP (Prodigy)10. Search - Point here if you want Windows to search for a particular file on any of thecomputer's storage drives.11. Help and Support - Click here to bring up the Windows XP Help Menu. A great place togo if you need tips on using Windows XP.12. Run - Can be used to run (or start up) programs, but is usually used to install newsoftware on a computer.13. Log Off – If you use a password to sign onto Windows, this option allows you to endyour Windows session.14. Turn Off Computer - Click here when you are ready to shut down Windows for the dayor when you need to restart the computer.Getting around the Start Menu:To move through the Start Menu, point your mouse to one of the menu options.When this little greenarrow appears at the endof a menu option,pointing to that optionwill open a new menu.Page 16
For example, after youpoint to the All Programsline in the Start Menu, anew menu pops up listingall the names of all theprograms (or folders full ofprograms) installed on yourcomputer. If you see thename of the program youwant, click on the name tostart the program.To create a shortcut for a program on the desktop:1. On the Start menu, click All Programs.2. Right click on the application from the list (for example, Microsoft Word or InternetExplorer) and select Send To Desktop. A shortcut will appear on the desktop.Page 17
Exploring AccessoriesAccessories are free programs that come with Windows XP. They are good to know aboutbecause you can find them on any computer running Windows and they can do somepretty handy things.To get to Accessories:1. Click on theStart Button3. Move the mousepointer to theAccessories2. Move the mousepointer to the AllProgramsPage 18
1. Accessibility – These programs will adjustWindows XP for special hearing, vision andmobility needs. For example, the Magnifier workslike a magnifying glass to enlarge portions of yourscreen to make them easier to read.2. Communications - These programs are usedto connect to the Internet, connect onecomputer to another, or to actually dial yourtelephone for you. Most likely, you will notneed to use any of these (most Internetservice companies provide software that setup your Internet connection).3. Entertainment - If your computer has Windows XP,a sound card, speakers, and a CD-ROM drive, youcan play audio CDs through the Real Playerprogram. You can also record and edit sounds here,adjust the computer's volume and play multimediafiles. I like the CD Player option best!4. System Tools - These built-in programs are here tohelp you maintain your computer. You should not tryto use them unless you are certain about theirfunction. The two I use regularly are Disk Cleanupand Disk Defragmenter. We’ll learn more aboutthem in a future lesson.Page 19
5. Calculator - This program works just like a regularcalculator. You can enter numbers and operatorseither with your keyboard or with your mouse.Note--to divide, use the / key andto multiply use the * key.6. Notepad - This is a quick little word processing program.You can type in text, save what you have written, and printout what you have typed. That's about the extent of what itcan do--it's a fairly limited word processing program.7. Paint - An excellent drawing program.You can use it to practice your mouseskills and create your own artwork.8. WordPad – The other word-processingProgram that comes with Windows XP. ThisIs one more complex than Notepad – you can changetext formatting, save documents and print out what youhave typed. This program is less complicated than manyfuller programs (like Microsoft Word), so it’s a great placeto start if you are new to computers. It’s an easy-to-useprogram for writing letters, reports, or term papers. It’smajor shortcoming: it has no spell checker!Of all these accessories, the ones I use most often are the Calculator, Real Player, Paint,Disk Cleanup, Disk Defragmenter.Page 20
Using the Control PanelThe Control Panel is a special folder in Windows XP that contains all the specialconfiguration options for your computer. It allows you to personalize your computer to fityour needs.To open the Control Panel:2. Move themouse pointerto ControlPanel1. Click ontheStartMenuThe Control Panel window will now open on your screen:Page 21
What do all these icons do?Appearance andThemesNetwork andInternetConnectionsAdd or RemoveProgramsSounds, Speechand AudioDevicesPerformanceandMaintenancePrinters andOther HardwareUser AccountsDate, Time,Language andRegionalOptionsAccessibilityOptionsSpecial "looks" that you can choose for your computer--theunderwater theme adds fish to your desktop and makesyour computer sound like an aquarium. You can changethe computer's background, color scheme, resolution, andscreen saver with this useful option. You can also addnew fonts (a font is text style) to your computer.Allows you to adjust Modem settings. Helps you withinstant messaging options, setting up a home network, andprovides a firewall to protect your privacy.Helps you install new software and uninstall programs youdon't want anymore.Changes what sounds your computer makes whendifferent events occur. You can record your own sounds,as well as set up and adjust the sound from CDs, MP3s orgames that use sound.Tools and programs that can help keep your computersafe, handle routine maintenance tasks and restore yoursystem, if needed. You can also control power options tosave energy.Helps you install a printer, perform basic printer tasks andfix printer problems. You can add or change settings foryour mouse, keyboard, game controllers, phone, modem,fax and scanners. For example, you can adjust yourmouse to be more sensitive to your clicking rate or to beoriented for a left-hander.Helps you set up accounts with pictures and passwords foreveryone who uses your computer. This way you can havedifferent personal settings for different users at onecomputer.In this area you can make changes to your computer'stime, date, and time zone. You can also adjust yourkeyboard here for different language settings, and you canchange how numbers, currencies and dates are displayed.Allows you to adjust the text and color combinations foryour screen and adjusts the computer settings to make iteasier for people to use with special physical needs.Options with the bell symbolnext to them are either used very infrequently or shouldbe used very carefully, as they could affect the smooth functioning of your computersystem.Page 22
Changing the Display OptionsThere are 2 ways to access the Display Properties to change how your Desktoplooks.Option 1:1. Open the Control Panel(Reminder: To get to the Control Panel, clickon Start, and then click on Control Panel)2. Click on Appearance and Themes3. Select the Display icon.4. The Display Properties dialog box will nowappear on your desktop.Option 2:1. Right-click the mousepointer somewhere inthe "empty" space onyour desktop2. A pop-up menuwill appear. Clickon the optionProperties.Page 23
To change the Background on your Desktop:There is a collection of special graphics in Windows XP that can be spread across thebackground of your computer screen.1. Click on theDesktop tab.3. Click here toTile (repeat),Stretch, orCenter thewallpaperacross yourdesktop.2. Scroll throughthe list to find aBackgroundoption that youlike. When youselect an option,a previewappears in themini-monitor.4. After you find theoption you want, clickon Apply.If you just want a solid color as your desktop background,select the None option at the top of the background menu.Page 24
To change the Screen Saver in Windows 98In the past, leaving a computer on for long periods of time risked permanently damaging themonitor because the images displayed on the monitor could burn themselves onto the monitor'sscreen. Screen Savers were invented to protect monitors from this problem. Whenever acomputer hasn't been used for a while, the screen saver either turns the screen all black or fillsthe screen with moving images. Today, monitors don't have this problem, but people like to usescreen savers as a way to express themselves and because they are fun.1. Click on the ScreenSaver tab.2. Click on the drop-downlist to see the screensaver choices.3. When you select ascreen saver option, apreview will appear inthe mini-monitor.4. Click on the Preview button tosee what will happen to the entirescreen when the screen saverstarts up.5. Click here to choose how long youwant the computer to be idle beforethe screen saver starts.6. Click Apply tosave the newsettings.HINT:To stop a screensaver, just shake themouse.Page 25
To make other changes to your screen's appearance:You can change the background color of your desktop and many other window itemsthrough the Appearance tab.1. Click on theAppearance tab.2. Click here to set theWindows XP or WindowsClassic window andbutton style3. Click here to select a colorscheme for your computer schemes are built-in colordesigns that affect your desktopcolor, windows and icons.4. Click here to change the fontsize from normal to large orextra large6. Click Apply to save the changes.5. A preview appears in themini-desktop area to showwhat the new scheme willlook like.Page 26
To change the resolution in Windows XP:Your monitor and video card can display different numbers of color on-screen and can displaydifferent resolutions. The higher the resolution, the more information you can pack onto yourscreen at once and the smaller everything will appear on screen. Different programs (especiallychildren's software) require different color modes and resolutions, so it's important to know howto change these.3. Slide the bar to changeyour resolution or screenarea. Sliding the bar tothe right increases theresolution and shrinksthe appearance ofeverything on yourscreen.1. Click on theSettings tab.2. Click here to select how manycolors you want to display onscreen. The two choices areMedium Color (16 bit) orHighest Color (32 bit). Keepin mind: with more colorsdisplayed, your screen will lookbetter, but it uses morememory.4. Click on Applyto save yourchanges.The screen will go blank while it isbeing reconfigured. This boxappears to see if you want to acceptthe changes. It will automaticallychange back to the previous settingif you do not press yes.Page 27
Using My ComputerMy Computer is a quick and easy way to get access to the folders and files stored inyour computer system. It allows you to choose a particular storage location or drive andview the folders and/or files stored in that drive.To open My Computer:2. Double-click onthe My Computericon.1. Click on Start2. The My Computer window opens. Double-click on an object'sicon to see the contents of that object.FoldersHard DriveControlPanelCD-R Drive (D:)CD-ROMFloppy DrivePage 28
To view the contents of a storage drive:To see what is stored on one of the computer's drives, double-click on the iconrepresenting that drive. A new window will open displaying all the folders and filesstored on the selected drive.For example, to view the contents of your machine's hard drive:1. Double-click on theicon for the hard drive(or C: drive).2. A new window opensdisplaying the contentsof your hard drive. Eachfolder contains morefolders and files.3. A Pop-Up window listshow many objects arein the open window.Page 29
The objects in the My Computer window can be viewed five different ways:1.2.3.4.Thumbnails: objects are displayed in boxesTiles: objects are displayed with large iconsIcons: objects are displayed with small icons in order from left to rightList: objects are displayed in a list in order from top to bottom5. Details: objects are displayed with details about each itemStep 1: To change how theobjects in the window aredisplayed, click on the Viewmenu.Step 2: Select the optionyou want from the menuthat appears. The Tilesoption is the current option-a circle identifies thecurrent option.Thumbnail ViewIcons ViewDetails ViewList ViewPage 30
To view the amount of space available on a drive:1. Place the mouse overthe icon. A window popsup showing the total spaceand the space used.2. Right-click on the icon for thedrive. To see the availablestorage space on your harddrive, right-click on the C:drive. A pop-up menuappears. Select Propertiesfrom the menu.3. A new window opens showingthe amount of used disk spaceand available or free disk space.This hard drive has:10.8 Gigabytes of used space22.0 Gigabytes of free space32.9 Gigabytes total capacityPage 31
Creating FoldersWindows XP uses Folders to organize how information or data is stored on disks(hard disks, floppy disks, CD-ROMs, or DVD-ROMs). Folders can hold files, otherfolders, and/or objects (such as printers).Folders are easy to create and are a great way to organize files that you create on yourcomputer.To create a new folder:1. Right-click inthe window.2. Move yourmouse pointerto New in themenu thatappears.3. Select Folderin the secondmenu thatappears.4. A new folder will appear in the window where you initially clicked. Thedefault title for your new folder will be New Folder.You should rename it to something more meaningful by clicking in thespace under the folder icon where the text appears. As soon as you seethe cursor blinking in the line, you may begin to type in a new name forthe folder. You can rename a folder by right-clicking the mouse on thefolder icon and choosing Rename.Page 32
Other ways to create new folders:1. Click on the File menu located ineither a disk drive window’s menubar or another folder’s menu bar.2. Again, point to New in the menuthat opens.3. Select Folder from the pop-upmenu.4. A new folder will appear within thespace of the open window andyou may rename it as describedabove.Windows XP also featuresFile and Folder Taskboxes that make it easy tomanage your files andfoldersPage 33
Deleting Files and FoldersThere are several quick and easy ways to delete files or folders from a hard drive or afloppy disk.To delete a file from the hard drive:1. Go to My Computer.(Remember to click onStart. Double click onMy Computer.)2. Double-click onMy Documents3. Double-click thefolder containingthe desired file.Page 34
5. Highlight the file name.6. There are 4 ways to delete files.Press the Delete key on yourkeyboard.Right-click the file and selectDelete.Select Delete this File from theFile and Folder Tasks Menu.Click on the File menu bar andselect Delete from the menu.6. The following messagewill appear on yourscreen. Click on Yes.Your file will bedeleted and sent tothe Recycle Bin.Page 35
NOTE:If you delete a file by mistake, you can“restore” it by:Dragging it out of the Recycle Bin,Right-clicking the file name andselecting RestoreOr selecting Restore this Folderfrom the File and Folder Tasksmenu.To delete a folder from the hard drive:1. Go to My Computer.(Remember to click onStart. Double click onMy Computer.)2. Double-click on theicon for the hard drive(or C: drive).Page 36
3. A new window willopen displaying thecontents of your harddrive.4. Find the folder thatyou want to delete.Click once to selectit.6. The followingmessage will appearon your screen.Click on Yes. Yourfolder will be deletedand sent to theRecycle Bin.NOTE:When you delete a folder from your harddrive, the folder and all of the files in it gointo the Recycle Bin. You can “restore” itby dragging it out of the Recycle Bin orselecting Restore this Folder from theFile and Folder Tasks menu.Page 37
To empty the Recycle Bin:1. Double-click onthe Recycle Binicon on thedesktop.2. The Recycle Bin windowopens.3. You can choose 1 of 3options:Click on File in theMenu bar and selectEmpty Recycle BinClick on EmptyRecycle Bin in theRecycle Bin Tasksmenu.Right-click in thewindow and scroll downto Empty Recycle Bin4. A box appears.Click on Yes todelete all the filesin the RecycleBin.Page 38
To delete items from a floppy disk:1. Go to My Computer.(Remember to click onStart. Double click onMy Computer.)2. Double-click onthe Floppy Diskicon.3. Highlight the file name.4. Remember the 4 ways to delete your file:Press the Delete key on your keyboard.Right-click the file and select Delete.Select Delete this File from the File and Folder Tasks Menu.Click on the File menu bar and select Delete from the menu.Page 39
6. The following message willappear on your screen.Click on Yes. Your file willbe deleted.NOTE:When you delete a file from your floppydisk, it
Bits, Bytes, Kilobytes, Megabytes & Gigabytes Bit: We measure the information stored in a computer's memory and disk drives using bits.A bit is the smallest unit of measurement. Byte: 8 bits grouped together equal one byte. A byte
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Any computer system can be divided into two basic components: 1. Hardware Components 2. Software Components 2.1.3.1 HARDWARE COMPONENTS Computer Hardware can be defined as: "Electronic and mechanical devices that make up the computer are called the hardware" Computer hardware refers to all the physical, tangible components related to computers.
Hardware and Software In this section of notes you will learn about the basic parts of a computer and how they work. James Tam What Is Hardware? A computer is made up of hardware. Hardware is the physical components of a computer system e.g., a monitor, keyboard, mouse and the computer itself. James Tam Basic Units Of Measurement Bit .
and is referred to as hardware. A computer system consists of three elements. Fig 1.1.1 Components of a Computer System 1. Hardware 2. Software 3. People Hardware : The physical components which you can see, touch and feel in the computer system are called hardware Eg monitor, keyboard, mouse etc.
work/products (Beading, Candles, Carving, Food Products, Soap, Weaving, etc.) ⃝I understand that if my work contains Indigenous visual representation that it is a reflection of the Indigenous culture of my native region. ⃝To the best of my knowledge, my work/products fall within Craft Council standards and expectations with respect to
computer and how they work. James Tam What Is Hardware? A computer is made up of hardware. Hardware is the physical components of a computer system e.g., a monitor, keyboard, mouse and the computer itself. James Tam Basic Units Of Measurement Bit Binary digit Smallest unit of measurement Two possible values Byte 8 bits Word
How to Use Computer Hardware Computer hardware is any physical, tangible part of the computer, such as the mouse or keyboard. In this class, you will learn basic hardware skills for a desktop computer. The computer mouse The mouse controls movement of the cursor on the
Computer Hardware Computer hardware is the collection of physical elements that comprise a computer system.1 There are many physical components to a computer, but for our purposes we want to get to know these: 2 System Unit or "CPU": This hardware is what many people think of as the computer. Inside is the hard drive, which is
