Written by Eko. K 1 komentar Posted in:

Best Practices for Computer Performance and Safety

Hardware Considerations

I primarily want to share setup insights not directly related to the hardware in any given system, but in order to facilitate that advice there are a couple of basic principles of computer design I would like to encourage.

Use a Dual Hard Drive Setup - I strongly recommend having two hard drives: a smaller, fast one for Windows and applications, and a larger one for data storage. Some folks might need even more data drives (which is fine), but the important part is to separate your data from your OS installation and programs. There are several advantages to this approach, including:

  • You can reinstall Windows or programs without affecting saved data files

  • Data can be backed up easily and independent of application files

  • The data drive could be moved to a new computer in the future

  • You can invest in a high-speed drive for your OS / applications without having to buy into large capacity that might be cost-prohibitive

  • You can get a large, slow data drive without having to worry as much about affecting application performance (though data stored on that drive would be slower)

  • Both drives can be active and accessing data at the same time without slowing each other down

Personally, as of writing this document, I use a 80GB Intel SSD for my main drive with a 500GB data drive. I also use an external 1TB disk for backups.

If you want to make it easy to save data to your secondary drive without having to manually change where every file is saved, consider migrating your Documents folder to the drive. You can do this by opening the User folder (top-right option in Windows 7's start menu). In the window that opens, right-click on each of the folders listed there - My Documents, My Pictures, My Music, etc - and go to Properties. Select the Location tab and then click on Move to relocate the folder to your preferred drive.

Get Lots of RAM - It has always been my opinion that more RAM (random access memory) is better than faster RAM. There is anywhere from a 0 - 5% performance spread in most applications between the slowest and fastest DDR3 RAM currently available. This is very small, considering the higher cost of enthusiast memory. However, there is a massive performance difference between having enough memory for everything you are running and falling short of that amount. When you don't have enough memory, Windows will use hard drive space to make up the difference, and that is infinitely slower than RAM, causing a system to grind to a near-halt.

You do need to balance out the amount of memory you get with the cost, and while prices on memory usually trend downward over time they can fluctuate greatly in the short-term. Right now I think that 6, 8 or 12GB is reasonable, depending largely on how many slots for memory a given motherboard has. 4GB is sufficient for more basic usage, but if you tend to run multiple programs at once, I'd aim higher.

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The Different Memory Cards And The Speed Of Some Of Them



The MMC and Secure digital cards are not the same but are interchangeable. The difference has to do with copy protections of the disk volume on the SD card. This extra feature makes the SD attractive for people who use them in MP3 players. No other cards are interchangeable. The Canon Power shot A510 you described comes with only 16MB, so it would be best to invest in more memory capacity. What I would recommend is getting one memory card that you will be able to use, even as your need for the amount of pictures you want to take changes.
For this use I would recommend the SanDisk 1 GB Secure Digital Memory Card. Usually running around $90 this card will allow you transfer large files, take hundreds of photos, handle large movie files, and take pictures on the highest resolution setting. If you are looking for something with less storage space, but with an equally reduced cost. I would recommend the Kingston 512 MB SD Memory Card running from around $44. This card holds a significantly less amount of pictures, but still performs well.

Actually the Kodak cards are probably made by SanDisk anyway as Kodak manufacturers very little these days and subs most everything out. I use both
Compact Flash and Secure Disc memory cards and I'd be hard pressed to see any difference between the quality of the files stored on different types of cards or brands. And I have never heard of a problem of loss of quality because of a memory card.

What I have experienced is the corruption of the files on a memory card. I have several digital cameras of different brands and one day loaded a CF card from one camera into another. I am not sure but I think that the second camera tried to overwrite the first's directory and caused the loss of some information and a few files to be corrupted. I would suggest that you get yourself a program like RescuPro. It is a program that both finds and recovers lost and corrupted files and it wipes and deletes images files from a memory card.

Besides the price and fancy name, the difference between each generation of SanDisk cards is speed. A lot of people aren't aware of this, but the speed at which you can take pictures and speed of transferring them to you your computer really depends on the type of memory card you have. Overall, SanDisk has a great reputation for making fast cards. The Sony A-100 has a burst rate of three frames per second, which is similar to my camera.

With a slower card you only may be able to write five or six frames before the card has to stop the camera. If you're into sports I suggest the III or IV, especially since you have 10.2 megapixels which will eat up write time.

Another thing is the speed you can transfer your pictures to your computer. The best setup is a card reader and a 2.0 USB port. It also makes a huge difference what type of card your pictures are stored on. If you're transferring 200 10.2MP RAW images the difference between the original and IV can be minutes. The type of card is really important. Personally, since you'll be saving large files like 10.2MP, I'd go for the III or IV, but it is completely up to you.

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Top 5 Most Used Text Editors

Written by Eko. K 0 komentar Posted in:


Top 5 Most Used Text Editors

As time goes by, the variety of text editors available for the use of web developers keep on increasing. It is always that the new one has something better or something new to offer. Good thing that due to the number of choices they have, they could weigh which one would be most appropriate for their project.

Here are the most used text editors by web developers:

Notepad

Notepad is the most popular text editor based on the survey. It does not support any format or styles, which makes it very suitable in a DOS environment. It is one of the most favorites because it recognizes both left to right and right to left languages. It also does macro-recording and playback for repetitive keystrokes, a powerful regular expression search-and-replace, and support for many programming languages. Although you can edit file using notepad no matter what the format is, it does not read UNIX or MAC-style text files accurately.

Textmate

Textmate is a GUI text editor for MAC OS X. It is commonly used for screenwriting. Programmers prefer Textmate because it features declarative customizations, tabs for open documents, recordable macros, folding sections and snippets, shell integration, and an extensible bundle system. On the other hand, it does not support variable-width or wide fonts, right-to-left languages, (S)FTP, split views and textmate tends to work slower when composed with large files or long lines. Developers must also be online to be able to validate their website because only W3C validator can be used for HTML validation.

Coda

Coda was specifically developed for MAC OS X. It was created to resolve the problem of inadequacy of full-featured website development platforms corresponding to application development platform Xcode. One of its notable feature is that it boasts a new Find/Replace mechanism. It benefits the users because they were able to do complex replaces using a method similar to regular expressions. It also supports bookamarks, which are the specially-formatted comment tags in many syntaxes. With the use of bookmarks, developers can go to the corresponding line of text from anywhere in the editor by clicking on the link in the Code Navigator.

Vim

Vim is compatible with Windows, Linux and MAC OS. It is based on commands given in a text-user interface. The command line mode is where its full functionality takes place. Some considers it as a programmer's best friend because it is very convenient to use and it is very extensible. Programmers are not the only ones who benefit from this text editor, but also the children of Uganda. Although Vim is free and open source software, its license has charityware clasuses.

PSPad

PSPad is a freeware text editor for Windows. It supports syntax highlighting and hex editing, and is designed as a universal GUI for editing many languages including PHP, Perl, HTML, and Java, autocompletion, tabs, FTP client and find/replace using regular expressions. It also has a feature where you can save sessions to be able to go back to your previous set. up.

When choosing the proper text editor to use for your project, it shouldn't depend on the popularity of the program. It will all boil down to the usability and functionality of the product.

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Editing User Accounts in Windows.

In this article, we will tackle how to setup the Windows User Accounts. This will allow you to add new accounts or close old accounts. You can even change passwords or upgrade accounts from “standard user” to “administrator.” First we will cover how to use the windows XP interface, then we will see how to use the windows vista and windows 7 interface.

Part One: Windows XP interface.

To edit user accounts in windows xp:

1. Press the start menu key in the bottom left area of the screen.

2. Click on Control Panel.

3. Find the “User Accounts” button and double click it.

Your first three options will be: change an account, create a new account and change the way users log on or off. Clicking change an account will allow you to manage existing accounts. From there, you will be able to:

1. Change my name. This allows you to change the name of the selected account.

2. Change my password. Click this to EDIT your current password.

3. Remove my password. This removes the password associated with the account. Anyone will be able to access this account!

4. Change my picture. Edit your account profile picture. This is the image you see at the top of the open start menu and the login screen.

5. Change my account type. This option allows you to change from standard user to admistrative user.

The second option, create a new account, is a very straightforward manner of creating a new windows user account. After selecting the name of the new account and choosing whether to make it an administrative account or a standard account, you will be able to manage it with the step one instructions.

Finally, the third option, change the way users log on or off, allows you to choose between two options. The first option allows you to display the welcome screen as users attempt to login. This will list all of the accounts on the computer. If this is disabled, then a prompt will appear instead where the user needs to type the account name and password to log in. The second option determines whether a user account “shuts down” when the log off button is clicked. This will allow your programs and documents to remain open while someone else uses the computer and then you will be able to log back on to your account and find all your work intact.

Part Two: Windows Vista and Windows 7 Interface.

To edit the users in the later versions of windows:

1. Click on the start menu key in the bottom left area of the screen.

2. Click on Control Panel on the right side.

3. Click on User Accounts and Family Safety.

4. Click on User Accounts.


The screen that appears will allow you to perform all of the same functions as the old windows XP interface except that you will be able to do so in less clicks. For example, the options on the main screen are:

1. Create a password for your account/Edit your password.

2. Change your picture.

3. Change your account name.

4. Change your account type.

5. Manage another account.

6. Change User Account Control Settings.

The main difference between XP and Vista/Windows 7 is the addition of the 6th option to control UAC or User Account Control. This is the additional screen that appears when making changes to your computer system to confirm that you want to proceed. After clicking on this option, you will be able to choose what sensitivity to set the UAC settings to, if any. Slide the bar all the way to the bottom to turn off UAC.

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Economy Articles

Written by Eko. K 0 komentar Posted in:


From command economies to traditional, barter, bubble and service economies, this section details numerous topics relative to various types of economies.

This section has been designed to provide background information about different aspects of various economics.

This section includes articles related to different types of economic systems, as well as a number of contemporary issues influencing the world economy, the distribution of economic powers, the issue of globalization, and other topics of interest.

While different types of economies prevail in certain regions of the world, these economies may illustrate many similarities, as well as differences, depending on the specific example.

A fuel economy for instance, is dominated by the international demand for crude oil and gasoline, while a command economy is a market system that is heavily regulated by the government.

These articles also provide information about the open economy - where no obstruction is imposed on trade or commerce, investment or other financial activities.

Other topics are discussed in this section include the traditional economy, barter economy, bubble economy, and the service economy.

Issues that are selected for this section are related to particular economies, but at the same time these issues are also dominating the global economy. Some of these important issues include crises such as the global credit crunch, renewed fears about inflation and its effect on world economies, the downfall of the US housing market, major sporting events such as the Olympics and their economic impact, and world economies in general.

Other featured articles focus on the growth of China and India, with a special emphasis on the different challenges faced by these emerging markets.

Globalization and its impact on developing economies is also discussed in this section, while more information is contained in the country-specific sections that focus on the economic development of each country.

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