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NEC

NEC 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 NEC rather than just read about it. In short: NEC Corporation (日本電気株式会社, Nippon Denki Kabushiki gaisha; an acronym for Nippon Electric Company) is a Japanese multinational information technology corporation headquartered at the NEC Supertower in Minato, Tokyo, Japan. It sells IT and network services, including cloud computing, artificial intelligence (AI), Internet of Things (IoT) platform, and telecommunications equipment and software to business enterprises…

NEC — main illustration
NEC — illustration

Key takeaways

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

Reference excerpt

NEC Corporation (日本電気株式会社, Nippon Denki Kabushiki gaisha; an acronym for Nippon Electric Company) is a Japanese multinational information technology corporation headquartered at the NEC Supertower in Minato, Tokyo, Japan. It sells IT and network services, including cloud computing, artificial intelligence (AI), Internet of Things (IoT) platform, and telecommunications equipment and software to business enterprises, communications services providers and to government agencies. It is one of the five largest defense contractors in Japan. NEC was one of the world's largest personal computer and semiconductor manufacturers from the 1980s to the 2000s, but has largely withdrawn from manufacturing since the beginning of the 21st century, having spun off its PC business to Lenovo and its semiconductor business to Renesas Electronics and Elpida Memory. NEC is a member of the Sumitomo Group.

History

Overview Kunihiko Iwadare and Takeshiro Maeda established Nippon Electric Limited Partnership on 31 August 1898, by using facilities that it had bought from Miyoshi Electrical Manufacturing Company. Iwadare acted as the representative partner; Maeda handled company sales. Western Electric, which had an interest in the Japanese phone market, was represented by Walter Tenney Carleton. Carleton was also responsible for the renovation of the Miyoshi facilities. It was agreed that the partnership would be reorganized as a joint-stock company when the treaty would allow it. On 17 July 1899, the revised treaty between Japan and the United States went into effect. Nippon Electric Company, Limited was organized the same day as Western Electric Company to become the first Japanese joint-venture with foreign capital. Iwadare was named managing director. Ernest Clement and Carleton were named as directors. Maeda and Mototeru Fujii were assigned to be auditors. Iwadare, Maeda, and Carleton handled the overall management. The company started with the production, sales, and maintenance of telephones and switches. NEC modernized the production facilities with the construction of the Mita Plant in 1901 at Mita Shikokumachi. It was completed in December 1902. The Japanese Ministry of Communications adopted a new technology in 1903: the common battery switchboard supplied by NEC. The common battery switchboards powered the subscriber phone, eliminating the need for a permanent magnet generator in each subscriber's phone. The switchboards were initially imported, but were manufactured locally by 1909. NEC started exporting telephone sets to China in 1904. In 1905, Iwadare visited Western Electric in the U.S. to see its management and production control. On his return to Japan, he discontinued the "oyakata" system of sub-contracting and replaced it with a new system where managers and employees were all direct employees of the company. Inefficiency was also removed from the production process. The company paid higher salaries with incentives for efficiency. New accounting and cost controls were put in place, and time clocks were installed. Between 1899 and 1907 the number of telephone subscribers in Japan rose from 35,000 to 95,000. NEC entered the China market in 1908 with the implementation of the telegraph treaty between Japan and China. They also entered the Korean market, setting up an office in Seoul in January 1908. During the period from 1907 to 1912 sales rose from 1.6 million yen to 2 million yen. The expansion of the Japanese phone service had been a key part of NEC's success during this period. The Ministry of Communications delayed a third expansion plan of the phone service in March 1913, despite having 120,000 potential telephone subscribers waiting for phone installations. NEC sales fell sixty percent between 1912 and 1915. During the interim, Iwadare started importing appliances, including electric fans, kitchen appliances, washing machines, and vacuum cleaners. Electric fans had never been seen in Japan before. The imports were intended to prop up company sales. In 1916, the government resumed the delayed telephone-expansion plan, adding 75,000 subscribers and 326,000 kilometers of new toll lines. Thanks to this third expansion plan, NEC expanded at a time when much of the rest of the Japanese industry contracted.

… excerpt ends here. Continue reading the full article.

Illustrations

NEC illustration
NEC illustration
NEC: The NEC logo used from 1963 to 1992[30]
The NEC logo used from 1963 to 1992[30]
NEC: A 1982 NEC APC microcomputer
A 1982 NEC APC microcomputer
NEC: A NEC Versa 6010H from c. 1996
A NEC Versa 6010H from c. 1996

Worked examples

Example 1 — a first encounter with NEC

Start with the simplest possible case. Write down what NEC 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 NEC 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 NEC 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 NEC

In research
NEC 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 NEC 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
NEC is common in secondary-school and first-year university syllabi. It links to neighbouring topics Aerospace companies of Japan, Companies formerly listed on the London Stock Exchange, Companies formerly listed on the Nasdaq, so understanding it makes those chapters shorter.
In everyday life
Look for NEC 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 NEC in 20 minutes

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

Frequently asked questions

What is NEC in simple terms?

NEC Corporation (日本電気株式会社, Nippon Denki Kabushiki gaisha; an acronym for Nippon Electric Company) is a Japanese multinational information technology corporation headquartered at the NEC Supertower in Minato, Tokyo, Japan. It sells IT and network services, including cloud computing, artificial intel…

Why does NEC 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 NEC?

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 NEC.

Tags

  • Aerospace companies of Japan
  • Companies formerly listed on the London Stock Exchange
  • Companies formerly listed on the Nasdaq
  • Companies in the Nikkei 225
  • Companies listed on the Fukuoka Stock Exchange
  • Companies listed on the Osaka Exchange
  • Companies listed on the Tokyo Stock Exchange
  • Computer hardware companies
  • Computer printer companies
  • Computer security companies
  • Computer systems companies
  • Conglomerate companies of Japan

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