Haruka's Tech Blog
Injuration: 2011

In memory of Steve Jobs

Steve Jobs
1955 - 2011

One of the greatest pioneers in shaping the world of information technology, Steve Jobs had helped changed the world that had span many decades.

He envisioned having computers that were user-friendly to people that have little knowledge on computers, and also have one that is small enough that would fit into people's homes. He also reinvented the music and mobile industry.

May he rest in peace.

Written by Haruka Takahashi on Friday, October 7, 2011

Windows 8 Development Preview

I've got my hands on the preview version (a development stage earlier than beta) of Windows 8. I installed it on the laptop I bought earlier this year on an another drive partition, keeping the pre-installed Windows 7 intact. According to the specifications, you can also install on a PC that meets the requirements of Vista on it too. (Windows XP or other operating systems? It depends on your hardware, but certainly a PC from 1997 won't do.)

It features a new start screen, and the more familiar desktop screen somewhat secondary. I don't have a touch-screen based interface, so bare in mind that this was used with a keyboard and mouse. Since the aspect ratio is 5:4, with a resolution of 1280*1024, certain features like snap to the side of the screen are unavailable.

To access all programs here, press the WinKey and C. To have those black boxes at the bottom of the above screenshot to appear, just hover the mouse at the bottom left. Option to shut down, sleep, restart, etc., are in there too. Wifi could be selected either in the settings menu here, or the taskbar of the desktop.

This is the weather app. Depending on your screen resolution, you can see only part of it, or the whole thing plus other cities you added. The background image is animated, which is based on the current weather and the time of the day. I don't know how to adjust the settings, but the date/time is in Japanese format, the temperature is in degrees Fahrenheit, and wind is in mph.

Next is the Twitter app that it comes with. I don't see where the settings are, and clicking on a username will bring up the user profile on the Twitter website via Internet Explorer instead of the app itself. CJK characters don't seem to be rendered smoothly. For some reason, when I tweet from this app, the tweet went through, but doesn't update here. (I knew the tweet was successful via another device.) Another oddness is that my timeline is blank, though when I sign in with my other twitter account (below image), it appears fine. I don't know what the problem is.
(Parts of this image is censored out to protect privacy)

Next up is another social app, but for Facebook. It features feeds from friends, your photos, profile, and the Foursquare-like thing called Places. The interface looks like it could be improved further. In the photos section, any images that are not of 1:1 aspect ratio have ugly black bars surrounding it, especially vertical images (not shown). The image thumbnails were simply resized instead of cropping it.

I would like to try out other applications, but the app store isn't open yet. The apps that it already comes with seemed to be specifically designed for touch interface. They work with keyboard and mouse, but I don't feel comfortable using those with those apps.

Overall, Microsoft has done some great effort in radically changing the user interface that has not been seen since Windows 95 with an interface called Metro. Metro is based on the (now discontinued) Zune player interface and has been applied to UIs, such as Windows Phone 7 and Xbox Dashboard. However, I have to say that it's confusing to people who have been used to the older interface. I know a lot of companies that still run Windows XP with the classic interface (Win2k/ME/98-like) today. Then again, I don't want to see a visibly old interface that is still being used a decade later.

Written by Haruka Takahashi on Friday, September 16, 2011

Analog vs Digital Terrestrial signals

Countries around the world are switching over from analog to digital signals, with both being provided during the transitional period. Some countries have already shut down the analog signal, while others are in the early/planning stages of it. What I'm discussing here is talking about the over-the-air signals, and therefore, TV content provided over the cable, mobile phone signals, and satellite are not covered in this.

So, what is so great about it? Well, for one thing with digital, you are either going to receive a crystal-clear image or none at all.

But wait: doesn't that mean that those who are already receiving a weak analog signal, even with a signal booster, would not receive at all?

Well, it depends on how far away you are from the transmitting tower. Since digital signals uses less bandwidth (and therefore less power) than analog to get a clear image. you would still receive a very clear image. To put that in perspective, a DVD video movie in 576i (PAL/SECAM) takes up the whole disc, but if stored as data at 720p, compressed, you could store about 12 times more on the same disc and in higher quality. If your signal is poor, but enough to not get a "no signal", you may see odd-looking squares that might be green.

Another thing you may face is receiving the signals. In general, any new TV sold in your area today should be able to receive these signals without any additional hardware. If you somehow have a TV that could only receive a different type of digital signal, or, more likely, an older type of TV that doesn't even know what to do with the digital signals, you may need an external device to help receive the digital signals and send that signal to the TV via the same input you might have used for your console/DVD player.

So, what are they going to do with the former analog frequencies after the shutdown happens?

Well, who knows? Reserved for emergency use, future cellular signals (lower frequencies = larger coverage). One thing's for sure is that if you are used to a grainy analog TV signal and suddenly see the digital HD version, you wouldn't want to turn back. Though, you might not even watch TV for various reasons.

Written by Haruka Takahashi on Saturday, March 5, 2011