astronomy

PTT Bulletin Board System

PTT Bulletin Board System is a astronomy topic covered in the lgStudy science library. This page brings together a partial reference excerpt, illustrations, worked examples, real-world applications and a short study plan, so you can understand PTT Bulletin Board System rather than just read about it. In short: PTT Bulletin Board System (PTT, Chinese: 批踢踢實業坊; pinyin: Pītītī Shíyè Fāng; Pe̍h-ōe-jī: Phi-thek-thek Si̍t-gia̍p-hong) is the largest terminal-based bulletin board system (BBS) based in Taiwan. It was founded by Yi-Chin Tu and other students from the National Taiwan University in 1995 as Professional Technology Temple, and it is currently administered by the Electronic BBS Research Society as a non-commercial and op…

Key takeaways

PTT Bulletin Board System belongs to astronomy; place it in that map before memorising details.
Learn the definition first, then one example that makes the definition concrete.
Connect PTT Bulletin Board System to a quantity you can measure, compute or draw — that is where exam questions come from.
Reproduce the core statement of PTT Bulletin Board System from memory before moving on to harder problems.

Reference excerpt

PTT Bulletin Board System (PTT, Chinese: 批踢踢實業坊; pinyin: Pītītī Shíyè Fāng; Pe̍h-ōe-jī: Phi-thek-thek Si̍t-gia̍p-hong) is the largest terminal-based bulletin board system (BBS) based in Taiwan. It was founded by Yi-Chin Tu and other students from the National Taiwan University in 1995 as Professional Technology Temple, and it is currently administered by the Electronic BBS Research Society as a non-commercial and open-source BBS. PTT has more than 1.5 million registered users, with over 150,000 users online during peak hours. The BBS has over 20,000 boards covering a multitude of topics, and more than 20,000 articles and 500,000 comments are posted every day as of 2014.

Background Using the TELNET protocol, PTT provides a quick, free of charge, and open online forum community. Currently, PTT has two branch sites, PTT2 (批踢踢兔) and PTT3 (批踢踢參). Of the three sites, the main site PTT is the largest Chinese language-based BBS in the world. The main site was founded on 9 September 1995 by Yi-Chin Tu (杜奕瑾 Dù Yìjǐn), then a sophomore in the Department of Computer Science and Information Engineering at National Taiwan University. PTT2 was founded in 2000, with the aim of providing a similar system centered around groups and individuals. PTT3, powered by MediaWiki, was founded in 2004 in Washington, D.C., United States for Taiwanese students studying abroad. PTT also provides wiki and blog services for registered users. The PTTwiki service was activated on 5 February 2004 and powered by Tavi wiki system. It is the main wiki service for individuals in Taiwan. PTT is an open source project. The source code is released under GPL 2.0.

Organization

PTT is registered as a student organization at the National Taiwan University. The BBS Technology Research Club (臺大 BBS 研究社) was founded in 1999 by several BBS sites at NTU, with Yi-Chin Tu as its leader. In 1999 and 2000, the club held public events on campus for BBS users. Although PTT is a club and the most famous BBS site in Taiwan, it is not the official BBS site for NTU. The machines and other hardware used to set up PTT was obtained by the administrators without the help of the university, and hence it operates with a high level of freedom. However, it still operates on the NTU network, and hence must abide by its rules and regulations.

System

PTT runs under Linux, while PTT2 runs under FreeBSD 4.11 and PTT3 runs under cloud services provided by Microsoft Azure. The BBS system used by PTT, PTT2, PTT3 is called Open PTT, and is under the GPL.

Development

The code for PTT was originally forked from MapleBBS 2.36 that operated the Sun of Beach BBS. Many programmers and system administrators contributed to the PTT project, with the goals of making PTT efficient in terms for memory usage and disk access and allowing as many users on the system at a single time as possible. The code is licensed under GPL 2.0.

Open PTT Open PTT is a BBS implementation known for its ease of installation, which is why many BBSes directly run Open PTT as their system.

Current PTT Another fork of the PTT code is known as Current PTT, which is documented at the PttCurrent board. This is the version of the code that runs PTT and PTT2, with many additional features. It currently supports the FreeBSD and Linux platforms.

Commenting: commendation and criticism PTT implements an article commendation (推文) and criticism (噓文) scheme as its article rating and commenting system, in place since 25 May 2002. PTT was the first Chinese-language BBS to implement such a system. Under this system, users can evaluate an article by giving it a tuei (推), adding a point, or a hsü (噓), subtracting a point. Individual boards can turn off this feature or set a minimum amount of waiting time between comments.

Sticky posts Sticky posts reside at the bottom of the forum, right after the most recent posts.

Boards The forums are subdivided into boards (Chinese: 看板; pinyin: Kànbǎn; lit. 'noticeboard', 'bulletinboard') and named by a string of alphanumeric characters. These boards can be searched as well as ordered by popularity. They can also be added to a user's list of favorite boards.

Guardian Angels The Guardian Angels is a group of experienced PTT users who act as mentors and help answer questions that new users might have. The guardian angels remain anonymous. This system has been in place since May 2004. The 29th of every month is Guardian Angel Day, during which users express their gratitude towards their guardian angels.

Culture

Glossary

Some of the popular terms used by PTT users are vulgar, which has caused public concern, while others believe that as long as this behavior is contained online and does not affect the user's real-life behavior, this is nothing to be concerned about.

Aligned comments and comment art Aligned comments (推齊) is a cultural phenomenon in which users align their comments for special effect. Comment art (推圖) is a phenomenon inspired by the 2chAA community, in which lines of comments collectively form a picture. Since comment art is sometimes perceived as waste of system resources, some of the forums prohibit its use.

Blood drive In 2004, PTT activities coordinator Huan-Yu Chen (陳奐宇) teamed up with an on-campus organization NTU Blood-Donating Bus (台大號捐血車) to hold a blood drive to solicit blood donations in exchange for PTT money, which led to the creation of the Donate-Blood forum.

2018 logo design contest The management team of PTT held a logo design contest from May 6 to July 15, 2018. Users could submit their logo designs by posting on the contest board with their PTT ID as the title of the post. The submission session lasted from May 6 to June 15, 2018. All PTT users had two weeks (June 16, 2018 – June 30, 2018) to vote for their favorite design. The management team then together decided three winners of this contest from the ten most voted designs (July 3 – July 13, 2018). The winner (announced on July 15, 2018) was awarded 1,000,000 P coins (currency on PTT) along with other souvenirs. The winning design was posted on the official Facebook page and website for a year.

Incidents and controversy

… excerpt ends here. Continue reading the full article.

Illustrations

Worked examples

Example 1 — a first encounter with PTT Bulletin Board System

Start with the simplest possible case. Write down what PTT Bulletin Board System claims or describes in one sentence, then invent the smallest concrete situation in which that sentence is true. In astronomy, the smallest case is usually a single object, a single equation or a single measurement. Check that every symbol or term in your sentence has a meaning in that case.

Example 2 — changing one variable

Take the situation from Example 1 and change exactly one quantity: double it, halve it, or set it to zero. Predict what should happen to PTT Bulletin Board System before you calculate. Comparing your prediction with the result is the fastest way to find out whether you understand the idea or only the words.

Example 3 — an exam-style question

Typical questions about PTT Bulletin Board System ask you to (a) state it precisely, (b) apply it to given data, and (c) explain a limitation. Practise writing all three answers in under five minutes; the third part is what separates a full-mark answer from an average one.

Applications of PTT Bulletin Board System

In research: PTT Bulletin Board System appears in astronomy research whenever the underlying quantities have to be modelled precisely. Papers usually cite it as a starting assumption and then explore where it breaks down.
In technology and industry: Engineering practice reuses PTT Bulletin Board System in design rules, simulations and safety margins. Knowing the idea lets you read a specification sheet and understand why the numbers look the way they do.
In the classroom: PTT Bulletin Board System is common in secondary-school and first-year university syllabi. It links to neighbouring topics 1995 establishments in Taiwan, Bulletin board systems, Culture of Taiwan, so understanding it makes those chapters shorter.
In everyday life: Look for PTT Bulletin Board System outside the textbook — in sport, cooking, traffic, electronics or the sky above you. An example you found yourself is remembered far longer than one you were given.

Ask Teacher Smith questions about this articleOpens your AI tutor with a question about “PTT Bulletin Board System” →

Affiliate

Preply — study more efficiently by working with a personal tutor. 50% off.

How to study PTT Bulletin Board System in 20 minutes

Read the reference excerpt below once, without taking notes.
Close the page and write down what PTT Bulletin Board System means in your own words.
Compare your version with the excerpt and mark what you missed.
Work through the three examples above with pen and paper.
Explain PTT Bulletin Board System out loud to somebody else — or to Teacher Smith in the lgStudy chat.

Frequently asked questions

What is PTT Bulletin Board System in simple terms?

Why does PTT Bulletin Board System matter?

Because it connects several astronomy ideas at once: it gives you a definition you can apply, a quantity you can calculate, and a way to check whether a result is plausible.

How should I study PTT Bulletin Board System?

Read the excerpt, restate it from memory, then work through the examples and applications listed on this page. The five-step study plan above takes about twenty minutes.

What does this page cover?

It gives you a compact reference excerpt plus original lgStudy explanations, examples, applications and study material on PTT Bulletin Board System.