Information Technology Blog (Archive)

Here it is. The steps for installing a Guest OS in Virtual Box. (I used Windows XP on Windows 7 as model for this.)

Windows XP Mode allows you to run Windows XP in your Windows 7 OS. Windows XP Mode is only availabe on Windows 7 Professional and Windows 7 Ultimate. However there are still factors that should be put into consideration before you can get your PC running Windows XP Mode. I have my Windows 7 Ultimate OS and I want to install XP Mode. But I must check if my PC hardware works with it using this tool from Windows 7 Website. Unfortunately, I got this message which tells that I cannot run Windows XP Mode. But don't fret! Sun Virtual Box is here to solve the problem. I downloaded VirtualBox 3.1.0 for Windows hosts and had it working in no time. Now I am running my Virtual Windows XP simultaneously with my Windows 7. I am ready to run Windows-XP-Compatible softwares like Oracle 9i in my laptop. Thanks to Sun Virtual Box! The installation of Windows XP on Virtual Box is very easy. It is just like installing Windows XP but the difference is you are installing it in a window inside Windows ...

Here's a 100% working 12-hour digital clock layout (using logic gates), done on PCB Wizard Portable. This is my final project on my Logic Circuits and Switching Theory subject 1st semester '09-'10 Components 4 pcs - 74ls47 (Decoder) 2 pcs - 1N4002/1N4001 diodes 7 pcs - 74ls90 (Counter) 1pc - 74ls76 (JK Flip-Flop) 2 pcs - 1N4148 diodes 2 pcs - 74ls32 (OR) 28 pcs - 270 ohms resistors 1 pc - 4.7 uF capacitor 1 pc - 74ls04 (NOT) 1 pc - 1 kohms resistor 1 pc - 2200 uF capacitor 1 pc - 74ls08 (AND) 1 pc - 3.9 kohms resistor 1 pc - 1 uF capacitor 4 pcs - Common Anode 7 segment 1 pc - LM7805 (Voltage Regulator) 1pc - 74121 (One-Shot) 12V out TRANSFORMER Just follow the connections of every jumper wires (This will be tricky! This can make or break you!) and it is 100% sure that will work. Click here to download (Schematic, PCB Layout, Simulation in Multisim 2001) To open the .pcb f...

Numerous Infix-to-Postfix programs are available in the internet, but I remember myself having a hard time searching for Infix-to-Postfix programs that include parenthesis. Now, I made it myself. Plus I made the other Program for Expressions too! Download link is now available. Program for Expressions (Translator) which includes a) Infix to Postfix b) Infix to Prefix c) Postfix to Infix (with Parenthesis) d) Prefix to Infix (with Parenthesis) Preview: Interpreter Program (or Evaluator) which includes a) Postfix Interpreter b) Prefix Interpreter Preview: Download project files for $10 Note: For every confirmed payment, a one-time download link will be sent to your e-mail address. Kindly check your email.