computer science

Z23 (computer)

Z23 (computer) 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 Z23 (computer) rather than just read about it. In short: The Zuse Z23 was a transistorized computer first delivered in 1961, designed by the Zuse KG company. A total of 98 units were sold to commercial and academic customers up until 1967.

Key takeaways

Z23 (computer) 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 Z23 (computer) to a quantity you can measure, compute or draw — that is where exam questions come from.
Reproduce the core statement of Z23 (computer) from memory before moving on to harder problems.

Reference excerpt

The Zuse Z23 was a transistorized computer first delivered in 1961, designed by the Zuse KG company. A total of 98 units were sold to commercial and academic customers up until 1967. It had a 40-bit word length and used an 8192-word drum memory as main storage, with 256 words of rapid-access ferrite core memory. It operated on fixed and floating-point binary numbers. Fixed-point addition took 0.3 milliseconds, a fixed-point multiplication took 10.3 milliseconds. It was similar in internal design to the earlier vacuum tube Z22. Related variants were the Z25 and Z26 models. The Z23 used about 2700 transistors and 7700 diodes. Memory was magnetic-core memory. The Z23 had an Algol 60 compiler. It had a basic clock speed of 150 kHz and consumed about 4000 watts of electric power. An improved version Z23V was released in 1965, with expanded memory and a higher processing speed. The Z23 weighed about 1,000 kilograms (1.0 t; 1.1 short tons).

References

External links Z23 Crosses Atlantic Computer History Museum Zuse Z23 Archived 2016-10-16 at the Wayback Machine

Illustrations

Worked examples

Example 1 — a first encounter with Z23 (computer)

Start with the simplest possible case. Write down what Z23 (computer) 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 Z23 (computer) 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 Z23 (computer) 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 Z23 (computer)

In research: Z23 (computer) 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 Z23 (computer) 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: Z23 (computer) is common in secondary-school and first-year university syllabi. It links to neighbouring topics Computer-related introductions in 1961, Computer hardware stubs, Computers designed in Germany, so understanding it makes those chapters shorter.
In everyday life: Look for Z23 (computer) 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 “Z23 (computer)” →

Affiliate

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

How to study Z23 (computer) in 20 minutes

Read the reference excerpt below once, without taking notes.
Close the page and write down what Z23 (computer) 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 Z23 (computer) out loud to somebody else — or to Teacher Smith in the lgStudy chat.

Frequently asked questions

What is Z23 (computer) in simple terms?

The Zuse Z23 was a transistorized computer first delivered in 1961, designed by the Zuse KG company. A total of 98 units were sold to commercial and academic customers up until 1967.

Why does Z23 (computer) 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 Z23 (computer)?

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 Z23 (computer).