What’s on the The CAP Theorem poster
The rule, 3 worked examples, and the mistake everyone makes.
- A distributed system cannot be simultaneously consistent and available while partitio…
- Consistency · Availability · Partition tolerance — pick 2
- CP — consistent, partition-tolerant = Refuse requests rather than serve stale data
- AP — available, partition-tolerant = Serve possibly stale data
- CA = Only on a single node
- Common mistake: Reading it as a permanent choice between all three → It is what happe…
PACELC extends it: else — when there is no partition, the trade is between latency and consistency.
Questions about the The CAP Theorem poster
- What’s on the The CAP Theorem poster?
- The rule, 3 worked examples, and the mistake everyone makes. A distributed system cannot be simultaneously consistent and available while partitio…; Consistency · Availability · Partition tolerance — pick 2; CP — consistent, partition-tolerant = Refuse requests rather than serve stale data; AP — available, partition-tolerant = Serve possibly stale data; CA = Only on a single node; Common mistake: Reading it as a permanent choice between all three → It is what happe…. PACELC extends it: else — when there is no partition, the trade is between latency and consistency.
- Who is the The CAP Theorem poster for?
- The CAP Theorem belongs to the Computing section rather than to a school year, because computing is not something one grade owns. Anyone learning data can pin it up — a beginner, a student mid-course, or someone revising years later.
- When should you use the The CAP Theorem poster?
- The choice only appears during a network partition. The rest of the time you get both. A wall chart earns its place by being glanceable from where the work is happening, so The CAP Theorem belongs on the wall where that computing work actually happens, within glancing distance, rather than filed away.
- What other posters go with The CAP Theorem?
- ACID, Choosing a Chart and Correlation & Causation sit alongside The CAP Theorem in the Computing section. Printed together they make a wall rather than a single sheet, which is how a reference set actually gets used.ACIDChoosing a ChartCorrelation & Causation
- Is the The CAP Theorem poster free to download and print?
- Yes. The CAP Theorem downloads as a free PDF with no account, no email and no watermark, like everything else in the Computing section. Print as many copies as you like for a home, a classroom, a library or a tutoring group; reselling the file is the only thing the licence rules out.Read the licence
- What size does the The CAP Theorem poster print at?
- The CAP Theorem is a vector PDF laid out for US Letter, and prints on A4 with Fit to page — the same file, no separate download. Because every mark on it is drawn rather than photographed, it stays sharp enlarged to A3, A2 or A1 at a copy shop. Colour carries emphasis only, so a greyscale print of The CAP Theorem loses nothing.Printing guide
Related posters
Charts that sit alongside The CAP Theorem on the same wall.
Browse every Computing poster, or start from the full catalogue.