CushionTheBlow (구 BluemoonSoft)

WiBro (Wireless Broadband) is a wireless broadband Internet technology being developed by the South Korean telecoms industry. WiBro is the South Korean service name for IEEE 802.16e (mobile WiMAX) international standard.

Reference:
http://en.wikipedia.org/wiki/Wibro

Facebook is a social networking website launched on February 4, 2004. The free-access website is privately owned and operated by Facebook, Inc. Users can join networks organized by city, workplace, school, and region to connect and interact with other people. People can also add friends and send them messages, and update their personal profile to notify friends about themselves. The website's name refers to the paper facebooks depicting members of a campus community that some US colleges and preparatory schools give to incoming students, faculty, and staff as a way to get to know other people on campus.

Mark Zuckerberg founded Facebook while he was a student at Harvard University. Website membership was initially limited to Harvard students, but was expanded to other colleges in the Ivy League. It later expanded further to include any university student, then high school students, and, finally, to anyone aged 13 and over. The website currently has more than 100 million active users worldwide.

Facebook has met with some controversy over the past few years. It has been blocked intermittently in several countries including Syria and Iran. It has also been banned at many places of work to increase productivity. Privacy has also been an issue, and it has been compromised several times. It is also facing several lawsuits from a number of Zuckerberg's former classmates, who claim that Facebook had stolen their source code and other intellectual property.

Reference:
http://en.wikipedia.org/wiki/Facebook

바탕화면에서 클릭해서 실행하고자 하는 경우 .bashrc의 환경변수 값을 읽지 않는다.

/etc/environment에 PATH와 같은 환경변수를 추가할 수 있다.

설정 후 재부팅한다.

X window만 재실행해도 될 것 같은데 안타깝게도 할 줄을 모른다 -_-;;

더 좋은 환경변수 설정 방법도 있을 것으로 생각된다.

다만 알지 못할 뿐 ㅠㅠ

MySpace is a popular social networking website offering an interactive, user-submitted network of friends, personal profiles, blogs, groups, photos, music and videos for teenagers and adults internationally. Its headquarters are in Beverly Hills, California, USA, where it shares an office building with its immediate owner, Fox Interactive Media; which is owned by News Corporation, which has its headquarters in New York City. In June 2006, MySpace was the most popular social networking site in the United States. According to comScore, MySpace has been overtaken by main competitor Facebook in April 2008, based on monthly unique visitors. The company employs 300 staff and does not disclose revenues or profits separately from News Corporation. The 100 millionth account was created on August 6, 2006 in the Netherlands and the site counted approximately 106 million accounts on September 8, 2006. MySpace.com attracts 230,000 new users per day.

Reference:
http://en.wikipedia.org/wiki/Myspace

Black box testing takes an external perspective of the test object to derive test cases. These tests can be functional or non-functional, though usually functional. The test designer selects valid and invalid input and determines the correct output. There is no knowledge of the test object's internal structure.

This method of test design is applicable to all levels of software testing: unit, integration, functional testing, system and acceptance. The higher the level, and hence the bigger and more complex the box, the more one is forced to use black box testing to simplify. While this method can uncover unimplemented parts of the specification, one cannot be sure that all existent paths are tested.

Reference:
http://en.wikipedia.org/wiki/Black_box_testing

White box testing (a.k.a. clear box testing, glass box testing or structural testing) uses an internal perspective of the system to design test cases based on internal structure. It requires programming skills to identify all paths through the software. The tester chooses test case inputs to exercise paths through the code and determines the appropriate outputs. In electrical hardware testing, every node in a circuit may be probed and measured; an example is in-circuit testing (ICT).

Reference:
http://en.wikipedia.org/wiki/White_box_testing

Alpha
The alpha build of the software is the build delivered to the software testers, that is, persons different from the software engineers, but usually internal to the organization or community that develops the software. In a rush to market, more and more companies are engaging external customers or value-chain partners in their alpha testing phase. This allows more extensive usability testing during the alpha phase.

In the first phase of testing, developers generally test the software using white box techniques. Additional validation is then performed using black box or grey box techniques, by another dedicated testing team, sometimes concurrently. Moving to black box testing inside the organization is known as alpha release.

Beta
Betaware is a nickname for software which has passed the alpha testing stage of development and has been released to a limited number of users for software testing before its official release. Beta testing allows the software to undergo usability testing with users who provide feedback, so that any malfunctions these users find in the software can be reported to the developers and fixed. Beta software can be unstable and could cause crashes or data loss.

Developers release either a closed beta or an open beta; closed beta versions are released to a select group of individuals for a user test, while open betas are to a larger community group, usually the general public. The testers report any bugs that they found and sometimes minor features they would like to see in the final version.

Reference:
http://en.wikipedia.org/wiki/Software_release_life_cycle

리눅스에서 C의 time() 함수는 second 단위로 반환을 한다.

자바에서 ms 단위로 처리하는데 익숙해서 삽질.

sleep() 함수도 second 단위이므로 참고하기 바란다.

error: stdio.h: No such file or directory

Ubuntu를 설치하고 위와 같은 에러를 만나서 당황했다.

뭘까??

Ubuntu가 일반 사용자를 대상으로 해서 그런지 기본적인 개발툴이 제외되어 설치된 듯.

기본적인 개발툴을 추가하도록 한다.

sudo apt-get install build-essential

startx