Laptop or Desktop Computer?

The Price Difference
You might wonder why laptops cost more than desktop computers with comparable features and power. That is largely because it is more expensive to manufacture laptops and their parts. For portable computer components, factors such as compactness, the amount of heat they generate, their weight, and power consumption are more important than they are for desktops. Those factors add to their manufacturing costs.

Space Requirements
While laptops are certainly compact, a desktop computer with a flat panel monitor can take up almost as little space. While called a "desktop" computer, the computer itself is most often kept on the floor. That leaves just the monitor, keyboard and mouse on the desk, which is really very similar in footprint to a notebook computer.

A great way to further reduce the space taken up on the desktop computer is get a keyboard drawer to hold the keyboard and mouse. That way, they slide out of the way under the top of the desk when they aren't needed.

Be Mindful of Ergonomics
Ergonomics is the science of designing and arranging things so that people can interact with them more comfortably and safely. The basic ergonomic principals for computer use tell us that, 1) the keyboard should be as close to your lap level as possible (assuming you touch-type), 2) the monitor should be about arm's length in front of you, and 3) the top of the monitor should be at about your eye level. Try achieving that with a laptop computer! Two words: im-possible.

It is obvious then, that a desktop computer is much better ergonomically than a laptop is. For prolonged use, especially, you're much better off with a desktop computer.

And Don't Forget Usability
Another aspect of ergonomics is usability. Because of size constraints, laptops also are lower on the usability scale than desktop PCs are. For one thing, laptop keyboards lack the separate groupings of the different sets of keys with space between them. For another, there are fewer keys on a laptop's keyboard, so some of them have to perform double duty. On a standard keyboard, you don't have to deal with that.

Screen Resolution
Computer monitors -- the bulky ones, anyway -- can be set at different resolutions. In other words, you can change the fineness of the image on the screen. The range is typically 640x480 -- that is 640 pixel across and 480 pixels up and down -- to 800x600, 1024x768, or even higher. At 640x480, the icons and such appear quite large; at 1024x768, they are substantially smaller. The most common resolutions today for desktop computers are 800x600 and 1024x768.

Essential Steps to Protect Your Computer On the Internet For Free

Step #1: Patch the operating system.

The first thing I did was update his Windows 98 to the latest available Windows updates for Windows 98.

Open Microsoft Windows Update page at
http://windowsupdate.microsoft.com/
Scan the PC to find out what critical updates and security fixes are missing.
Select, download, and install a selection of updates, especially any Critical Updates.

Restart the PC after finished.

When you open the Microsoft Windows Update page, click the "Scan for updates" link. The page will suggest what updates are needed based on your Windows version. You should install all Critical Updates suggested by Microsoft.

It took me about one and half hour to complete the above steps.

Step #2: Download, install, and run Spybot to get rid of all spyware.

http://www.safer-networking.org/index.php?page=download

Spybot-S&D is a free anti-spyware software to detect any spyware installed on your PC.

Spyware is any software that is installed on your PC and tracks your online behavior without your knowledge or consent. Spyware generally can

Track what web pages you are visiting and send these information to advertising companies. This kind of spyware is commonly called adware.

Track and record your computer activities such as what keys you hit. This is generally called Trojans.

Change your web browser's home page.

And more...


After installed Spybot, I immediately scanned my friend's computer and found 166 problems. The first run killed nearly all of them except some memory residents that had to be killed after a reboot.


Step #3: Download and install Kerio Personal Firewall (KPF).


http://www.kerio.com/us/kpf_download.html


Kerio Personal Firewall limited free edition is for home users. After installation, KPF works as the full edition for 30 days, after which it becomes the limited free edition.


You may also try the free ZoneAlarm firewall. Be aware that ZoneAlarm free edition uses a lot of computer memory.


The following is the free ZoneAlarm firewall download link. You hardly can find this download link on ZoneAlarm site because they want you to buy the Pro version which is a much better choice.


http://www.zonealarm.com/store/content/company/products/znalm/freeDownload.jsp


Step #4: Download AVG anti-virus software


http://www.grisoft.com/us/us_dwnl_free.php


Because my friend has McAfee antivirus installed but has not been updated for about 4years. I downloaded AVG Free Edition antivirus software and let him to consider if he wanted to pay and update his McAfee or use the freebie. Running two antivirus software on the same computer can cause conflicts.


Step #5: Install password management software - RoboForm free edition.


http://www.roboform.com/?affid=siter


RoboForm is a password management software with Artificial Intelligence built in that can automatically fill online forms for you. It has been featured on The Wall Street Journal, CNN, The New York Times, Financial Times, PC Magazine, etc.


Nowadays we all have many usernames and passwords to use on the internet. Some spywares record your keystrokes and send them to the hackers. It has been reported many times that people lost all their money in online bank account or internet payment system account.


One of RoboForm key features is designed to combat this kind of key logger hacking. RoboForm can



AutoSave passwords in browser.

AutoFill passwords to login form.

Click Login button for you.

Fill personal info into online forms.

Save offline passwords & notes.

Generate Secure Random Passwords.

Encrypt passwords and personal info using 3-DES.

All personal info is stored on your computer only.

Put passwords on USB KeyChain for extra security.

Sync your passwords and safenotes to a Palm.

Backup & Restore, Print your passwords.

More features: drill down for more.


RoboForm works best with IE 5.0 and above. IE6 is the recommended browser to use with Artificial Intelligence RoboForm.


Note: free eidition comes with some limitations.


Step #6: Apply additional security measures.


More security measures and resources:

Read Web Security tutorial from W3Schools, especially the paragraphs for home users.

http://www.w3schools.com/site/site_security.asp


Use Audit My PC to do three Penetration Testing.

http://www.auditmypc.com/freescan/prefcan.asp


Use Gibson Research's ShiedsUP to do port scan and get useful advice.

https://grc.com/x/ne.dll?bh0bkyd2


Download Gibson Research's LeakTest and check if personal firewall can be fooled. If the firewall is good, the LeadTest will not be able to reach the internet.

http://grc.com/lt/leaktest.htm


Browse Microsoft security home page to learn more about Windows security.

http://www.microsoft.com/security/default.mspx