The TCP/IP network that most people use today is not really a plug-n-play thing. It needs proper configuration. Typically I follow these steps to figure out if the network configuration is correct or not.
Do I have an IP address?
Do I have a working name service?
Can I reach the machine that I want to connect to?
The most basic [...]
We can roughly classify hardware-related issues into following categories:
heat dissipation issues
cabling and contact issues
equipment hardware failure
People often throw their routers, hubs, switches at the dark corner beneath the desk along with messy cables so that they are hidden from line of sight. If the room is warm, these poor little things have great chances to [...]
Part of my job is to help people troubleshooting network connectivity issues. As you all know, network today is not really a plug-and-play thing, at least not as easy as setting up a toaster. So, when we have a network issue, what or where should we look at? Here are summary of the steps I typically use and I’ll elaborate [...]
One can easily spot an application’s memory usage in Windows using Task Manager. However, the numbers shown are often misintepreted and a frustration source of mine when I am bugged by some “professionals” with perfect misunderstandings.
Memory usage has a formal name called “working set size”. A working set is the physical memory allocated by Windows [...]
For enterprise applications, web-based architecture has great potential and advantages, especially in deployment and patching. For web-based applications, IT people no longer need to install computer by computer (theorectically), and having fewer applications installed on a PC implies stabler system. Web-based applications may also lower the hardware requirements for client-side PCs because most tasks are performed [...]
For the sake of memory leak, I couldn’t tell the exact time but it should be around VB 5.0 timeframe, there was a “new trend” in UI development, the HTML. Desktop applications embedded HTML engine to render their UI. The reasons that I could remember were:
It feels cool!
It’s much easier to deal with i18n problems with HTML.
The look-and-feel [...]
In the good old days, the definition of a witty computer power user was that he/she knew something about GW-BASIC (or dBASE III, Lotus 1-2-3, you name it). All screens were 80 by 25 green text console and there were little requirements for UI. It was a paradise for UI programmers! Users were forced to learn all the [...]
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