computer science

IBM HandShaker

IBM HandShaker 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 IBM HandShaker rather than just read about it. In short: IBM HandShaker (also known as Connect Commander or simply CN) is a file manager for the DOS operating system, developed in 1991. It supported both Russian and English user interfaces, featured a built-in screensaver, and was widely used by professional programmers as a replacement for DOS Shell, due to its numerous extended capabilities.

Key takeaways

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

Reference excerpt

IBM HandShaker (also known as Connect Commander or simply CN) is a file manager for the DOS operating system, developed in 1991. It supported both Russian and English user interfaces, featured a built-in screensaver, and was widely used by professional programmers as a replacement for DOS Shell, due to its numerous extended capabilities.

History The software was developed in Kharkiv, Ukraine, by programmers Yan Balter and Dmitry Orlov starting in 1991. The final version of IBM HandShaker (7.5) was released in 1999, and an alternate version under the name Connect Commander (8.0) appeared in 2001. The last version of Connect Commander was released in December 2005.

Description Initially conceived as an integrated development environment for embedded systems and hardware programming, IBM HandShaker eventually became a file manager featuring a primitive built-in scripting language and debugger. Like DOS Navigator, it was written in Turbo Pascal using the Turbo Vision framework.

Features File manager in the style of Norton Commander, with advanced support for treating directories as files and archives as directories. Multi-window text editor comparable to MultiEdit; Multi-window hex editor; dBase-compatible database support with regex-based search, field editing, record deletion, memo field viewing (text and hex), clipboard interaction; Compiler for the internal scripting language to control the text editor and terminal emulator; Keyboard macro editor; Terminal emulator with ANSI.SYS compatibility and background operation; Phonebook with modem-based autodialing; Auxiliary tools (programmer's calculator, disassembler, memory editor, alarm clock, calendar, ASCII table, background printing system with customizable fonts, CD player); Context-sensitive, extensible help system with regex search, cross-file linking, custom help file creation, and program launching from help entries; Program settings menu (color schemes, working directories, keyboard and mouse modes, and many other options); HTML viewer with hyperlink navigation and automatic conversion between code pages (e.g., CP866, Windows-1251, KOI8-R).

Notes

References

External links The IBM HandShaker (Connect) CN – Connect or IBM HandShaker

Worked examples

Example 1 — a first encounter with IBM HandShaker

Start with the simplest possible case. Write down what IBM HandShaker 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 IBM HandShaker 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 IBM HandShaker 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 IBM HandShaker

In research: IBM HandShaker 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 IBM HandShaker 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: IBM HandShaker is common in secondary-school and first-year university syllabi. It links to neighbouring topics DOS software, Software using Turbo Vision, so understanding it makes those chapters shorter.
In everyday life: Look for IBM HandShaker 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.

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How to study IBM HandShaker in 20 minutes

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

Frequently asked questions

What is IBM HandShaker in simple terms?

Why does IBM HandShaker 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 IBM HandShaker?

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 IBM HandShaker.