Daqing Chu At WordPress

August 31, 2011

EPSON Printer Update 2.8

Filed under: Life with Mac — David Chu @ 2:18 am
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Yesterday I found this update but I did not have time to do it. Today after work, I completed this update. As far As I known this update is for EPSON printer, not Mac OS update from Apple directly, but all the updates have to be through Mac updates.

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August 29, 2011

Open/Closed Principle: Delegate Example

Filed under: Programming Notes — David Chu @ 4:16 am
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In object-oriented programming, the open/closed principle is a very important principle. Software entities (classes, modules, functions, etc.) should be open for extension, but closed for modification. Recently I tried to summary some commonly used components in a serials of documents. I found that I have used delegate in my LogHelper class. This reminds me about my OCP.

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August 23, 2011

iTunes 10.4.1 Update

Filed under: Life with Mac — David Chu @ 3:04 am
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Today I got one update about iTunes 10.4.1. I have not experienced any issues with iTunes since I got Lion. However, according to AppleInsideer article this updates fixed some instability issues, so I did the update anyway.

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August 21, 2011

Filed under: Programming Notes — David Chu @ 6:13 pm
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This blog is about how to create a materialized view in SQL server database. By creating a materialized view, you can dramatically improve query performance. I learned this by my experience. Here are some key notes about the process.

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August 17, 2011

Mac OS 10.7.1 Update

Filed under: Life with Mac — David Chu @ 5:05 am
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This is the first update after I installed Lion. It does not include any fix to add file size to Preview, as I want. I don’t think my voice will heard. Anyway, I just take two more steps to compare file size: to save file as JPEG and to use command+I to get file information. I am getting used to it.

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New iMac 21 Arrived!

Filed under: Life with Mac — David Chu @ 5:03 am
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My first iMac 24 was sold through Kijiji two weeks ago at the price of $575.00. After that, I ordered iMac 21 with education price: $1149 + $10 recycle fee – $100 off and $100 iTunes credit card. It took almost one week to have my new iMac.

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August 14, 2011

COPY DVD Disk

Filed under: Life with Mac — David Chu @ 5:10 pm
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I have not used DVD disk for very long time. Yesterday I got two DVD movie disk(Melaleuca Convention). I need to make a copy of them. Here are two ways I did.

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August 2, 2011

Updated to Xcode 4.1

Filed under: Programming Notes — David Chu @ 4:05 am
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oday I updated me Xcode to 4.1. It is a free version available from Apple store. That means you either have to have Snow Leopard or Lion if you want to get it. Before Lion’s release it was $5.00 from Apple Store. I have not started my iOS development for a while since I have been kept watching WWDC 2011 videos. Right now I am in the half way through 400 sessions and only 500 serials in my schedule. It is really good to learn OS and iOS new features from those session videos.

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