Archive for the ‘H/W’ Category

Either OS X for Windows or Visual Studio supporting Obj-c, Cocoa and other Apple’s frameworks.

I want to hear…”Hello, again from general Windows H/W.”

Don’t want slimmer notebooks, non customizable H/W. non-retina MBP and polycarbonate MB had easiest upgradability of RAM and storage devices.

They got rid of those options from MBs and even from Mac minis. Instead of making adding or replacing internal storage in Mac mini, they removed memory slots, and kept it difficult to upgrade.

Look at HP’s Mac mini-like mini PC!

Due to the cylindrical Mac Pro, extension card manufacturers need to design additionally for Mac Pro and hire device driver engineers. It reduced chance for video card companies to prepare one designed for general Windows PC for Mac with a driver for Mac.

It also raised costs

Seriously, other than S/W developers who know the benefit of Cocoa, who will choose Mac over Windows when they have the same Photoshop, Adobe Premiere etc?

I like Apples aesthetic side of MacBook Pros, but do Dell’s XPS notebook look bad? No!

There can be less expensive but good looking computers with good qualities! Why do ๐ŸŽ’s product decision makers overlook that fact?

It will be better if there is OS X for Windows box. (Anyway there is no difference in their H/W arch.)L

Or if Visual c++ also supports Obj-C, Cocoa and Av foundation etc!

Good starting point for people who are interesting in how to populate file system in a very low level?

This tutorial uses FatFS as a library to initialize FAT file system on an SD memory and create/open/read/write/close/delete files using the FatFS.

OK. Raspberry Pi Rev. B was delivered…

I bought a WIFI module, Raspberry Pi Rev. B and an HDMI cable.
I’m considering buying a few SD cards. Probably 4GBs per an SD card is good enough.

What shall I do? I would like to try to figure out H/W programming, not VHDL but low level ( kernel ) thing to port an OS as an exercise, and would like to control it by implementing an IOKit module from Mac OS X to figure out how to write device driver or some kind of mediate module for upper-layer app code.

Raspberry Pi with WIFI module

Raspberry Pi with WIFI module

Raspberry Pi close

Raspberry Pi

Raspberry Pi

 

Amazon Kindle DX

Today a new Amazon Kindle DX was announced. I have waited this for long time. I wanted to have an E-ink based e-Book reader, because I read lots of document and would like to save papers. It is also very handy to put all documents in such a small device.
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Using my MacBook is not quite handy. It should be folded out and LCD screen is not good for reading books and documents. You virtually look at a fluorescent bulb!

So, with Amazon Kindle DX, you can see whole US Letter page, and it supports PDF! ( The smaller version of Kindle 2 doesn’t support PDF. PDF files should be converted. ) Their propaganda is “No ratation, No Panning, No Zooming”.

However, there are some problems with it. When you flip pages, screen refresh is very slow. ( I tried it with Sony’s E-readers. ) E-ink display is still slow for refreshing. So, it is main reason, I guess, Amazon designed it to cover a whole page.

Secondly, “US Letter size” itself is also a problem. In US, US Letter size is the standard. However, in Europe and Korea, A4 is standard. Although the Kindle DX is a product for US market mainly, it can be a problem in other countries if Amazon wants to export it. Their books will be OK. However, people who have their own PDF files in A4 size, it can be a problem.

Thirdly, the price! It is $489.00. It is about $500. The Kindle DX is solely for reading E-books. Nowadays Windows notebook computers costs as much as Kindle DX. Notebook computers are very much multi-functional. Don’t you think the Amazon Kindle DX or any other E-readers are too expensive? Probably it is better to buy Sony’s, because it supports PDF format.

I would rather go for the Kindle 2, which is smaller. But it is still expensive. So, probably it is better to wait.

Anyway, someone is developing a new generation of LCD panels which can last about 1 week with notebook batteries and can be read under outdoor sun light.

Shall we wait for E-ink based iPhone or iPod touch?

Impressive battery life of 2007 Nov. version of MacBook

Sometimes it is relaxing to go back to non-technical subject.
I have used the base model of MacBook for a few months. Usually I don’t believe manufacturer’s claim on battery life. If they say that it lasts for 4 hours, the new battery will last about 2 hour and 30 minutes usually, and more realistically 2 hours. If you use that kind of notebook computer for about 1 year, it will be stabilized around 1 hour and 30 minutes.

However, somehow the MacBook has different story.
I charged my machine last sunday, and I turned it on today.
The remained battery level is as follows :

The natural discharging quality is very good. And it actually last more than 4 hours in actual use.

Is the battery really different from those used in Windows notebooks? Or is the Mac OS X power manager is really good?

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