Computers & Programming Features

How To: Create collections for Java programming

Want to program your own Java games and applications but don't know beans about object-oriented programming? Never you fear. This free video tutorial from TheNewBoston will have you coding your own Java apps in no time flat. Specifically, this lesson discusses how to use the Collection framework when writing code in the Java programming language. For more information, including detailed, step-by-step instructions, watch this helpful programmer's guide.

How To: Recover deleted files and lost data from disk crashes

This video from CNET Insider Secrets tells you how to recover deleted files from a data drive. If a disk is still readable by the computer, files may be recovered. Files may be recovered using the PhotoRec program, PC Inspector or other programs that may be available. An example is shown where mp3 files are deleted from a flash drive. We are then shown how files are recovered using the PhotoRec program, including how to select the correct file system. The mp3 files are recovered along with va...

How To: Navigate with your fingers using an HP TouchSmart PC

Navigating on your HP TouchSmart 3.0 PC is easy, fun and takes nothing more then your fingers. To click, simply create a single point of precise contact between your finger and the screen. The HP TouchSmart uses optics to determine clicks so avoid leaning on it with your hands, knuckles, large jewelry or the random fly. The screen is not pressure sensitive so pressing harder has no effect. To right click you simply press and hold. For tasks that require multi-touch input use more than one fin...

How To: Apply stylesheets when using Ruby on Rails 3

In this free video programming lesson, we learn how to use stylesheets within Ruby on Rails 3. Whether you're entirely new to Ruby on Rails 3 or are a seasoned developer merely looking to brush up on a few of the basics, you're sure to find much to take away. For all of the details, watch this quality video guide from the folks at Lynda.

How To: Convert an ebook file to ePub format in Mac OS X

If you use iBooks on your iPad or iPhone, you can only read books in EPUB format. If you have books in text or PDF format you may want to convert them to EPUB so you can read them in iBooks. You can do this with Calibre, a free open-source e-book library application. It's easy! So easy, in fact, that this home-computing how-to from MacMost can present a full overview of the process in about five minutes. For more information, including detailed, step-by-step instructions, watch this Apple lov...

How To: Use master page inheritance in Visual Studio 2008

Microsoft ASP.NET is a free technology that allows programmers to create dynamic web applications. ASP.NET can be used to create anything from small, personal websites through to large, enterprise-class web applications. All you need to get started with ASP.NET is the free .NET Framework and the free Visual Web Developer. This video tutorial uses a web template from oswd.org to demonstrate the use of Master Pages and how they are supported in Visual Studio 2008. Specifically, this Visual Stud...

How To: Secure your data with GNU's PGP implementation, GPG

In today's time of rampant information crimes, including identity theft, security is more important to the average computer user than ever. This tutorial from Linux Journal Online shows how you can use GnuPG to secure and verify data on your Linux box. (This video was created using only free and open source software tools: TightVNC, pyvnc2swf, ardour2, audacity, jackd, LAME, kolourpaint, cinelerra-cv, mjpegtools, and ffmpeg.)

How To: Print from a shared printer in Ubuntu

In this video, we learn how to print from a shared printer in Ubuntu. First, turn your computer on and then go to your system. From here, go to admin and then printing. After this, you will get a pop up window. Click on 'new' and then it will search for the printer. Next, you will click on 'network printers' and then go to 'windows printer via samba'. Then, click on browse and expand the workgroup. Then, expand the name of the computer and you will find the name of the computer as well. Now, ...

How To: Recover deleted files in Windows

This video tutorial is all about recovering the deleted files in Windows Vista. If you are using the Windows Vista and you have unknowingly deleted a file and emptied the recycle bin, then you can recover it. This can be done by using the Shadow Explorer. Shadow Explorer is a Vista program that accesses the Vista Volume Shadow Copy Service. In Vista, the shadow copy service is turned on by default. It creates backups of files on a regular basis. Shadow Explorer provides access to these backup...

How To: Create nested master pages in Visual Studio 2008

Microsoft ASP.NET is a free technology that allows programmers to create dynamic web applications. ASP.NET can be used to create anything from small, personal websites through to large, enterprise-class web applications. All you need to get started with ASP.NET is the free .NET Framework and the free Visual Web Developer. Using Visual Studio 2008's improved Designer, this video will demonstrate how to create a Nested Master Page. Nested Master Pages are useful when you build a hierarchy of te...

How To: Use the Windows Media ActiveX control in Visual C#

Interested in creating your own dynamic, web-based applications using Visual C# 2005 Express Edition? In this installment from the Absolute Beginner's Series of Visual C#/ASP.NET form control video tutorials, you'll learn how to use the Windows Media Player ActiveX control to play wma and MP3 audio files in your application. For more information, as well as tips for being a smarter user of Microsoft Visual C#, take a look! Use the Windows Media ActiveX control in Visual C#.

How To: Create a Cydia repo with Apple's Xcode

In this clip, you'll learn how to create a Cydia repo of an iOS app with Xcode. Whether you're new to the Objective-C operating language and Xcode IDE or are a seasoned developer merely looking to pick up a few new tips and tricks, you're certain to be well served by this tutorial. For more information, including a complete overview and detailed, step-by-step instructions, watch this free video Objective-C programming lesson for iPhone & iPod Touch developers.

How To: Enable the administrator account on Windows Vista

There are some people who are having troubles recovering files in Windows Vista due to access denied errors, but fortunately this video is here to save the day! If you've been getting those pesky access denied errors, check out this video to learn how to gain control of your Vista system and remove those errors all together. Now you will have full access to your system like how it should be!

How To: Create a small editor with wxPython

Kyran Dale shows how wxPython provides an easy way to bind user-generated events, such as choosing a menu option, to methods provided to handle them. The procedure shown is typical of all wxPython event handling so with little effort can be extended to far more complicated projects.

How To: Schedule tasks in Windows XP

In this video, the instructor shows how to schedule tasks in Microsoft Windows XP. Scheduled tasks are nothing but programs you want your computer to run at specific reoccurring intervals like daily, weekly, monthly, etc. This can be a very helpful feature if you want to update a particular software or run a system virus scan at regular intervals. To do this, click on the start button and go to run. In the Run command prompt, type in 'tasks' and hit enter. Now this opens up the schedule tasks...

How To: Overclock your cpu and memory easily

If you're looking to overclock certain componenets of your computer, chances are you're hoping increase the performance. There are many areas of a computer than you can overclock, such as RAM, video cards, processors, and also motherboards. So in this video tutorial, you'll be finding out how to do so for your cpu and memory. It's easy to do and can be done withing minutes. Enjoy!

How To: Install a 233 PowerForce G4 accelerator in a Mac Tower

The PowerForce G4 Series 233 is the versatile single processor upgrade for PowerMac G4 AGP towers, G4 Cubes, PowerMac G4 Digital Audio, QuickSilver, and QuickSilver 2002 models. It features the G4-7451 and G4-7455 processors, with speeds up to 1.2GHz. The PowerForce G4 Series 233 processor card, like its predecessors - the Series 100 and 133 upgrades - is the most advanced, highest performance CPU card available on the market today. It's also easy to install Feature List: PowerPC 7451 or 7455...

How To: Use a pen drive as ram on your XO

To use a USB (flash drive) pen drive as RAM on your computer. First open the drive by clicking on "My Computer" then double clicking on the drive. Next open the eBoostr control panel. When the control panel dialogue box opens click "Add..." this will open the "Add cache device" dialogue box. Once this dialogue is open click the select device drop-down menu and select your removable USB drive (pen drive) from the list. Then click "OK" and wait for the "allocating cache file..." process to comp...

How To: Build a Java applet to write data to a file

Want to program your own Java games and applications but don't know beans about object-oriented programming? Never you fear. This free video tutorial from TheNewBoston will have you coding your own Java apps in no time flat. Specifically, this lesson discusses how to write data to an external file when writing code in the Java programming language. For more information, including detailed, step-by-step instructions, watch this helpful programmer's guide.

How To: Monitor hardware sensors in Ubuntu

In this tutorial, we learn how to monitor hardware sensors in Ubuntu. First, go to your Synaptic Package Manager and download any IM-Sensors you need. You will also have to download and install "hddtemp". After you do this, go to your terminal and type in "sudo sensors-detect", then press enter. Answer the questions YES to every question you are asked. When you get to the end, start the chip drivers that are found by typing in "sudo modprobe (driver name)". This is all you have to do to monit...

How To: Use NTFS

NTFS? What is it? It stands for New Technology File System, but what does that mean? Well, it's the standard system for filing in Windows NT, including all later versions, up to the current Windows 7, but Mac users can take advantage of this file system, too. If you’re confused when it comes to your hard drive’s format, this guide will show you the way to get the most out of your system.

How To: Remove the AirPort module from a 15" MacBook Pro

Accidents will happen. This brief how-to will guide you through the process of removing the AirPort module from your 15" MacBook Pro both quickly and efficiently without damaging any of the components, the first necessary step of any successful repair. This tutorial will also be of use to those who wish to learn more about the guts of their MacBooks without actually disassembling their computers.

How To: Record and post voice notes on your HP TouchSmart

HP TouchSmart comes with a lot of inbuilt powerful features. Voice notes is one of them. To use this feature tap on the notes icon on the HP TouchSmart home page. Now tap on the microphone icon which is present at the bottom left of the screen. The TouchSmart contains two microphones that are integrated into you computer and are present on the either side of you web cam at the top of the screen. To record a voice message tap the record button and speak into the microphone. Tap the stop button...