Tugas CCNA Lab 1.3.3 Determining the Screen Resolution of a Computer

 Sonya Leoni

06491/2008

Lab 1.3.3 Determining the Screen Resolution of a Computer 
Objectives 

•  Determine the current screen resolution of a PC monitor.

•  Determine the maximum resolution for the highest color quality.

•  Calculate the number of pixels needed for resolution settings. 

•  Identify the type of monitor and graphics card installed. 

Background / Preparation 
The resolution of a monitor determines the quality of the screen display. The resolution is
determined by the number of horizontal and vertical picture elements (pixels) that are used
to produce the image on the monitor. The number of pixels is typically predefined by the
manufacturers of graphics cards and PC monitors. The highest number of pixels that a
monitor and graphics card can support is referred to as maximum resolution. An example of
maximum resolution is 1280 x1024, which means the display is composed of 1280 horizontal
pixels and 1024 vertical pixels. The higher the resolution is set, the sharper the display
image. The maximum resolution of a PC monitor and the number of colors the monitor can
display are determined by two factors: 

•  Capability of the monitor

•  Capability of the graphics card, especially the amount of onboard memory 

The following resources are required:

•   Computer with Windows XP installed 

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 : 1280

The vertical resolution is : 800

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. b. Use the Display Properties Settings tab to fill out the following table for the
current settings on your PC:
Minimum screen resolution 800 by 600 pixel
Maximum screen resolution 1280 by 800 pixel
Available color quality settings Medium (12 bit) dan Highest (32 bit) 

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 : 800 x 600 = 480.000

b. Calculate the total number of pixels for the maximum resolution : 1280 x 800 = 1.024.000


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 :
Graphics card manufacturer and model               Mobile Intel(R) 965 Express Chipset Family

(Adapter Type) 
Graphics memory on card (Memory Size)           128 MB

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 safely 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:

Monitor type                                 Plug and Play Monitor
Supported refresh rates                 60 Hertz