computer science

WPSG

WPSG is a computer science 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 WPSG rather than just read about it. In short: WPSG (channel 57), branded as Philly 57, is an independent television station in Philadelphia, Pennsylvania, United States. It is owned by the CBS News and Stations group alongside CBS outlet KYW-TV (channel 3).

Key takeaways

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

Reference excerpt

WPSG (channel 57), branded as Philly 57, is an independent television station in Philadelphia, Pennsylvania, United States. It is owned by the CBS News and Stations group alongside CBS outlet KYW-TV (channel 3). The two stations share studios on Hamilton Street north of Center City Philadelphia; WPSG's transmitter is located in the city's Roxborough section. Channel 57 was allocated for commercial use in Philadelphia at the start of the 1970s; it was fought over by two groups who sought to broadcast subscription television (STV) programming to paying customers in the metropolitan area. Radio Broadcasting Company prevailed and launched WWSG-TV on June 15, 1981. It offered limited financial news programming, which was abandoned after 18 months, and a subscription service utilizing programming from SelecTV. Two years later, the station switched to broadcasting PRISM, a premium regional sports and movies service seeking to reach potential subscribers in areas beyond cable coverage, such as the city of Philadelphia. The Grant Broadcasting System acquired the station and relaunched it in 1985 as general-entertainment independent WGBS-TV, known on air as "Philly 57". The new owners spent millions of dollars on programming and the rights to Philadelphia Flyers hockey and Villanova Wildcats basketball; the station filled the third independent void left when WKBS-TV (channel 48) folded in 1983, and its entrance into the market clipped multiple separate efforts to establish such a station. However, Grant's strategy to build "full-grown" independents with expensive acquisitions drove the company into bankruptcy in December 1986. Grant's three stations were assumed by a consortium of creditors and bondholders known as Combined Broadcasting; management was controlled from Philadelphia. Combined Broadcasting solicited offers on its stations in 1993; a deal was reached to sell to the Fox network, but an objection caused the sale to be delayed and canceled. In 1995, Paramount Stations Group acquired WGBS-TV, which then became an owned-and-operated station of the United Paramount Network (UPN) under new WPSG call letters. Paramount returned professional sports to the station after an absence of several years; from the late 1990s to the late 2000s, Flyers, Philadelphia 76ers basketball, and Philadelphia Phillies baseball games were broadcast on channel 57. Paramount's corporate parent, Viacom, merged with CBS in 2000, and WPSG's operations were merged with those of KYW-TV. Upon the merger of The WB and UPN into The CW in 2006, channel 57 began broadcasting that network's programming; after CBS sold most of its stake in the network to Nexstar Media Group in 2022, CBS disaffiliated its eight CW stations from the network effective September 1, 2023. Since the CBS merger, there have been several instances of local news programming on the station.

History

… excerpt ends here. Continue reading the full article.

Illustrations

Former logo as The CW Philly 57

Worked examples

Example 1 — a first encounter with WPSG

Start with the simplest possible case. Write down what WPSG claims or describes in one sentence, then invent the smallest concrete situation in which that sentence is true. In computer science, 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 WPSG 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 WPSG 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 WPSG

In research: WPSG appears in computer science 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 WPSG 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: WPSG is common in secondary-school and first-year university syllabi. It links to neighbouring topics 1981 establishments in Pennsylvania, ATSC 3.0 television stations, CBS News and Stations, so understanding it makes those chapters shorter.
In everyday life: Look for WPSG 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.

Affiliate

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

How to study WPSG in 20 minutes

Read the reference excerpt below once, without taking notes.
Close the page and write down what WPSG 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 WPSG out loud to somebody else — or to Teacher Smith in the lgStudy chat.

Frequently asked questions

What is WPSG in simple terms?

Why does WPSG matter?

Because it connects several computer science 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 WPSG?

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 WPSG.