2011. 3. 31.

Bit Torrent - optimistic unchoking

Bit Torrent

Optimistic Unchoking :  file sharing or distributing algorithm
search bit torrent  Bittorrent Protocol Specification v1.0

2011. 3. 14.

objective-C protocol concept

* ex)
// 1) you called presentModal method
[controlClassObject presentModalViewController:uiClassObject animated:YES];
// 2) If you want to close uiClassObject,  you use delegate mechanism like above .
//3) when cancel or ok event is occured in UIClass.  call delegate.Method1  and then
      controlmethod call '  [self dismissModalViewControllerAnimated:YES];

2011. 3. 10.

What kind of networks are connected in my pc ?

I run command window. and type netstat 
I got a interesting result.
this is result.
I found that akami, amazonaws, facebook. 
The networks of  the most famous companies are connected with my pc.
I am not alone ~


Active Connections

Proto Local Address Foreign Address State

TCP my-pc:1155 baymsg1020416.gateway.edge.messenger.live.com:1863 ESTABLISHE
TCP my-pc:1159 a118-214.79-139.deploy.akamaitechnologies.com:http ESTABLISHE
TCP my-pc:1170 a125-56.214-42.deploy.akamaitechnologies.com:http ESTABLISHED
TCP my-pc:1222 a125-56.214-98.deploy.akamaitechnologies.com:http ESTABLISHED
TCP my-pc:1233 a125-56.214-75.deploy.akamaitechnologies.com:http ESTABLISHED
TCP my-pc:1241 a125-56.214-75.deploy.akamaitechnologies.com:http ESTABLISHED
TCP my-pc:1246 a125-56.214-42.deploy.akamaitechnologies.com:http ESTABLISHED
TCP my-pc:1384 ec2-75-101-142-23.compute-1.amazonaws.com:http ESTABLISHED
TCP my-pc:4928 www-10-02-snc5.facebook.com:http ESTABLISHED
TCP my-pc:4963 channel3-02-01-snc4.facebook.com:http ESTABLISHED

iPhone App Calculator -1 review

기본계산기로는 좀 부족하고 그래서 앱스토어에서 뒤지다가 찾은 계산기 어플. 디자인도 깔끔하고 모양도 단순하고 그렇지만, 다 되는 유용한 계산기 이다.

카테고리: 생산성
이름 : Calculator +   ( 무료  )
회사: http://www.xneat.com/  Sarah Ragab

  • 특징:  괄호를 이용한 계산이 가능하고,  필기인식이 된다. 
  • 단점: 필기인식이 썩 유용해 보이지는 않는다.  (도움말에서 어떤 제스쳐가 어떤 기호인지는 알려 준다.)

기본 UI 는 아래 그림처럼 보인다. 앱소개에는 polishing UI라고 소개되어 있다. 숫자를 치면 LED처럼 주황색으로 표시된다. 그러면 기능이 끝인가? 라고 생각하기 전에  (2nd)버튼을 누르면, 키패드에 함수가 표시된다.  switch버튼을 누르면 필기채 인식화면으로 변환된다.
그리고 숫자사이를 왔다 갔다 하기 위해서는 화살표 버튼을 누르면 커서를 옮길수 있다.

(=)를 누르면 결과가 흰색으로 표시되고, 입력식은 윗줄로 글씨가 작아지면서 이동이 된다.

2011. 3. 9.

Google changes rule.

I found the news about chaging rules of google search ranks.
Many internet companies are affected by google ranks.
Google has more an more  big invisible powers.
Although Google says  "Don't be evil." .   As Google has more and more powers  people are afraid of google.   I think  that because google predicts such situations ,   Google's motto   would be such  that to prevent people from fearing them.

TED: Derek Sivers: Weird, or just different?

다양성을 인정하자 정도 일까요?

2011. 3. 8.

Allison Hunt gets (a new) hip

TED: Nigel Marsh: How to make work-life balance work

San Francisco - 2010.11.1


Golden Gate Bridge

alcatraz island
Cable car

San Francisco Hill & Sea

San Francisco Hill

2011. 3. 4.

Who is the winner in the cloud computing ?

Who is the winner in the cloud computing ?  

hardware company ?
Isp (internet service provider) ?
infra service provider ?

let's change  point of view.

who doest get big money?