Chapter 1 : Personal Computer and HardwareTelah dituliskan: November 19, 2010
Lab 1.3.2 Determining Data Storage Capacity
Step 1: Identify the RAM in a computer
a. With Windows XP, there are two ways to view control panels: Classic View and Category View. The options available depend on which one of these two views you are using. If you see the Switch to Category View option on the left, you are currently in the classic view mode. If Switch to Classic View is displayed, you are currently in Category View mode. For this step, you want to use Classic View mode.
b. From the Start menu, select Control Panel. In the Control Panel, choose System to open the System Properties dialog box. Alternatively, you can get this information by clicking the Start button and right clicking the My Computer icon. Next, choose Properties from the drop-down menu. The computer operating system and service pack information are listed in the upper part of the dialog box. The computer processor type, speed, and memory are listed in the lower portion.
c. In this example, the computer processor is a Pentium 4 processor with a clock speed of 3.20 gigahertz (GHz). Clock speed is a measurement of the number of cycles per second that a processor is capable of doing. The number of cycles impacts the number of instructions per second that the CPU can process. A higher clock speed generally means that a processor is capable of executing more instructions per second. The computer has 448 MB of RAM available for the CPU.
d. Check your computer and determine the amount of RAM available to the CPU. How much RAM is in your computer?
(The computer has 965 MB of RAM available for CPU)
Step 2: Determine the size of the hard disk drive
a. Double-click the My Computer icon on your computer desktop. If you do not have a My Computer icon, click Start and choose My Computer.
b. Right-click the local disk drive under the Hard Disk Drives Section (which is usually the C drive), and select Properties. This opens the Local Disk Properties dialog box. The total capacity of the hard drive is shown above the Drive C icon.
c. Determine the size of the hard drive on your computer. What is the total size of the hard drive in GB?
d. Keep the Local Disk Properties dialog box open for the next step.
Step 3: Determine the free space and used space on the hard drive
a. In the Local Disk Properties dialog box, the used and free space is shown in both bytes and GB
above the Capacity.
b. What is the used space of your hard drive in GB? (21.3 GB)
c. What is the free space of your hard drive in GB? (17.7 GB)
Step 4: Check for other storage devices
a. Right-click the Start button and select Explore. Select My Computer in the left pane.
b. How many drive letters are shown in the window that appears? (3)
c. Right-click on a drive icon other than C: and select Properties. The Removable Disk Properties window appears.
d. Select the Hardware tab, which provides information on each device and whether it is working properly.
Step 5: Reflection
a. Why is it important to know the amount of RAM in your computer?
b. Why is the size of a hard drive as well as the space being used important?
Lab 1.3.3 Determining the Screen Resolution of a Computer
Step 1: Determine the current screen resolution
a. To view the current screen resolution and color quality settings, right-click on any empty space on the desktop and select Properties from the context menu. In the Display Properties window, select the Settings tab. You can also access Display Properties by opening the Control Panel and clicking the Display icon.
b. Use the Display Properties Settings tab to record the current settings on your PC:
The screen resolution is (H by V) (1280 by 800 pixel)
The horizontal resolution is:
The vertical resolution is:
The color quality value is: (Highest 32 bit)
Step 2: Determine the maximum resolution for the highest color quality
The slide bar under Screen resolution is used to configure the desired resolution.
a. Move the slide bar to see the range of screen resolutions that are available on your PC. (The range is determined by the operating system when it identifies the display card and the monitor.)
b. Use the Display Properties Settings tab to fill out the following table for the current settings on your
Step 3: Calculate the pixels for current and maximum resolution settings
The display on the screen consists of rows of pixels. The number of pixels in each row is the horizontal resolution. The number of rows is the vertical resolution. To determine the total number of pixels in a screen resolution, you multiply the horizontal resolution by the vertical resolution. For example, if the current resolution is 1280 x 1024, the total number of pixels is 1280 times 1024, or 1,310,720.
a. Calculate the total number of pixels for the lowest resolution:
b. Calculate the total number of pixels for the maximum resolution:
Step 4: Identify the type of graphics card installed
You can get detailed information about the graphics card (also called the display adapter) in the Display Properties screen.
a. In the Display Properties screen, click the Advanced button.
b. Select the Adapter tab.
c. Use the information found in the Adapter tab to complete the following table.
Step 5: Identify the type of monitor and available refresh rates
You can get detailed information about the monitor in the Display Properties screen. The screen refresh rate determines the number of times per second the screen is illuminated or redrawn. A refresh rate of 60 hertz means the screen is illuminated 60 times per second. Higher refresh rates provide less screen flicker, which reduces eye strain, but may adversely affect the monitor. You should set the refresh rate to the highest level the monitor can safel support.
a. Click on the Monitor tab to see the monitor type and current refresh rate.
b. Use the information found in the Monitor tab to complete the following table.
c. What can occur if you select a refresh rate that is higher than what the monitor can safely display?
Lab 1.5.3 Installing a Printer and Verifying Operation
Step 1: Add a printer
a. From the Start menu, select Control Panel. Double-click the Printers and Faxes icon. If this icon is not shown, click Switch to Classic View in the left pane.
b. In the Printers and Faxes window, click the Add Printer icon to open the Add Printer Wizard. Click Next.
c. For Local or Network Printer, click the Local printer attached to this computer radio button, and uncheck Automatically detect and install my Plug and Play printer. Click Next.
d. For Select a Printer Port, click the Use the following port radio button and choose LPT1: (Recommended Printer Port). Click Next.
e. Note: In this step, you will choose a driver provided by Windows XP for an HP LaserJet 2200, a common home or small office, black-and-white laser printer. You do not have to physically have the printer to do these steps. However, if you are installing a printer that is actually attached to your computer, choose the manufacturer and printer model corresponding to your printer instead of the HP LaserJet 2200. For Install Printer Software, select HP from the Manufacturer list. In the Printers list, locate HP LaserJet 2200 Series PCL and click to select it. Click Next.
f. For Name Your Printer, choose a descriptive name for the printer. In an environment like a large office that has several printers of the same make and model, it is helpful to give each printer a unique name so that it can easily be identified. Click No under Do you want to use this printer as the default printer? (If you are connecting an actual printer, click Yes if you want Windows applications to use this printer by default.) Click Next.
g. In the Printer Sharing window, click Next to accept the default option to not share this printer.
h. If you are actually installing a printer, click Next in the Print Test Page window to print a test page. If you are installing a virtual HP LaserJet 2200, click the No radio button before clicking Next.
i. In the Completing the Add Printer Wizard window, review the printer settings, and then click Finish
Step 2: Verify the printer installation
a. Open the Printers and Faxes in control panel and check to see that the printer that you installed and named is shown. If it is not shown, repeat Step 1.
b. Right-click the icon for the new printer (HPLJ 2200 Series PCL Virtual), and then click Properties.
c. Click the Advanced tab and record the name of the driver shown in the Driver textbox.
Driver Name: (C:/Program File)
d. Click the Device Settings tab and examine the available options for the printer using this driver. To close the window, click Cancel.
Step 3: Download and install an updated printer driver
When you use the Add Printer Wizard to manually install a printer, the driver that is installed by default allows the device to function, but the Windows-installed driver does not always allow all features of the device to be used. The most full-featured drivers are usually those provided by the device manufacturer. Updating a printer driver is one of the best ways to troubleshoot problems and to increase printer functionality. Most manufacturers continue to update drivers to improve compatibility with operating systems, so it is a good idea to periodically check for driver updates and to install them if they are available. In this step, you will go to the Hewlett-Packard website to obtain an updated driver for the HP LaserJet 2200. If you have installed a different printer, modify these instructions as needed.
a. Open a web browser and go to http://www.hp.com.
b. Click on the Software and Driver Downloads link.
NOTE: Many manufacturers have a support link on their home page that leads to drivers and other downloads.
c. Click the Download drivers and software (and firmware) radio button. Enter the printer model in the for product text box and click the double arrow link to the right of the text box.
d. The search displays the available products. Click HP LaserJet 2200 Printer or the model of the printer for which you are downloading a driver.
e. Click Microsoft Windows XP in the list of operating systems. In the list of drivers shown, click Download for the HP LaserJet 2200 PCL6 driver option.
f. In the download dialog box, click Save.
g. In the Save As dialog box, click the Desktop icon in the left pane to save the driver installation file to your desktop. You can save the file anywhere, but it is important that you know where you have saved it.
h. Write the name of the file: (HP LaserJet)
i. Click on the Save button. Close the browser and any other open applications.
j. Double-click the icon for the downloaded file.
NOTE: You may not see the filename extension (.exe). File extensions are only visible if you disable the default Hide extensions for known file types from Windows Explorer. See your instructor for more information.
k. When prompted, click Run. In the dialog box, click the second radio button and then Next to unpack the files to c:\lj2200. Click Finish.
l. Repeat Steps 2a and 2b to open the Properties page of the new printer. Click the Advanced tab. Click the New Drive button, and then click Next to begin the Add Printer Driver Wizard.
m. Click Have Disk in the Printer Driver Selection window.
n. In the Install From Disk window, click Browse and locate the folder created in Step 3 by navigating to My Computer > Local Disk C:\lj2200. Click Open and you return to the Install From Disk window. Click OK.
o. In the Printer Driver Selection window, select HP LaserJet 2200 Series PCL 6, and then click Next.
Click Finish in the window that follows.
p. When the process is finished, return to the properties window of the printer and click the Apply button, and then click OK.
Step 4: Verify the new driver installation
In this step, you will compare the Windows default driver installed in the first step to the newly installed driver from the manufacturer website.
a. In the properties window of the new printer, verify that the Apply button is grayed out.
b. Click the Advanced tab. What is the name of the driver?
Driver Name: (C:/Program File/HP LaserJet)
c. Click the Configure tab. The window for the HP LaserJet 2200 is shown in the figure.