イギリスより発送。通常7-21日以内にお手元に。日本語でも対応しております。Book is shipped from UK, please allow up to 21 days for delivery イギリスより発送。通常7-21日以内にお手元に。日本語でも対応しております。Book is shipped from UK, please allow up to 21 days for delivery 一部を表示

配送料 ¥430 6月1日-12日にお届け（2 時間 23 分以内にご注文の場合）
詳細を見る

お届け先を選択

残り3点ご注文はお早めに在庫状況について

￥￥6,327 () 選択したオプションを含めます。最初の月の支払いと選択されたオプションが含まれています。詳細

選択した拡張機能は、この出品者では利用できません。詳細

${cardName}は選択した出品者では利用できません

${maxQuantity}より大きい数量の場合は${cardName}は使用できません。

この商品は、worldbooksjapan が販売、発送します。

Amazonの他の出品者

新品＆中古品 (19)件の出品：￥2,104 + ￥430 配送料

著者をフォロー

David Leavitt

+ フォロー

この著者の他の本

画像はありません

選択したカラーの画像がありません。
カラー：

このビデオを見るには、次をダウンロード Flash Player

Man Who Knew Too Much: Alan Turing And the Invention of the Computer (Great Discoveries) ペーパーバック – 2006/11/1

英語版 David Leavitt (著)

4.1 127個の評価

すべての形式と版を表示

{"desktop_buybox_group_1":[{"displayPrice":"￥6,327","priceAmount":6327.00,"currencySymbol":"￥","integerValue":"6,327","decimalSeparator":null,"fractionalValue":null,"symbolPosition":"left","hasSpace":false,"showFractionalPartIfEmpty":true,"offerListingId":"dukXNIVQFzpWeo2JCbxKyssHqieZ587JxYatT2ynav58UoG2IUk4aCAQFAfgUcrBjyms71JLkg6DpU%2FabLWD2DHQQIvojseEC0Tz2wkYniUFQJQ2MGd8nmGmexSQx4ZcDtNOvGco1PWXq%2BmT%2FOZnY%2B%2B3OAhIuceTi%2F0CkDuGr%2FjMXUWYMDTmEQ%3D%3D","locale":"ja-JP","buyingOptionType":"NEW","aapiBuyingOptionIndex":0}, {"displayPrice":"￥2,104","priceAmount":2104.00,"currencySymbol":"￥","integerValue":"2,104","decimalSeparator":null,"fractionalValue":null,"symbolPosition":"left","hasSpace":false,"showFractionalPartIfEmpty":true,"offerListingId":"dukXNIVQFzpWeo2JCbxKyssHqieZ587Jx6AA45O6cOdajzNfW7tydwNaya128ZzpULH34chgg%2FPaQnJ%2BfdD85mWnihe15psbmvaS1o%2F0QkxSslw0I2BQJXSvbYYChEDLo5ONlVpfmX4S2pHgwHCSAHcaGL%2BplR8ZIlbnuhb8AglLBVoR6tiWuQ%3D%3D","locale":"ja-JP","buyingOptionType":"USED","aapiBuyingOptionIndex":1}]}

購入オプションとあわせ買い

To solve one of the great mathematical problems of his day, Alan Turing proposed an imaginary computer. Then, attempting to break a Nazi code during World War II, he successfully designed and built one, thus ensuring the Allied victory. Turing became a champion of artificial intelligence, but his work was cut short. As an openly gay man at a time when homosexuality was illegal in England, he was convicted and forced to undergo a humiliating "treatment" that may have led to his suicide.With a novelist's sensitivity, David Leavitt portrays Turing in all his humanity—his eccentricities, his brilliance, his fatal candor—and elegantly explains his work and its implications.

続きを読むもっと少なく読む

この商品に関する問題を報告する

本の長さ

336ページ
言語

英語
出版社

W W Norton & Co Inc
発売日

2006/11/1
寸法

13.72 x 2.03 x 20.32 cm
ISBN-10

0739471953
ISBN-13

978-0739471951
すべての詳細を表示

商品の説明

レビュー

[Leavitt] conveys abstruse information in elegant narrative prose.-- "Miami Herald"

Stimulating . . . ambitious.-- "Seattle Times"

With lyrical prose and great compassion, Leavitt has produced a simple book about a complex man involved in an almost unfathomable task that is accessible to any reader.-- "Publishers Weekly"

著者について

David Leavitt is the author of novels including The Body of Jonah Boyd and The Two Hotel Francforts, as well as story collections. The New York Public Library honored him as a Literary Lion. He teaches creative writing at the University of Florida, Gainesville, where he lives.

登録情報

ASIN ‏ : ‎ 0393329097
出版社 ‏ : ‎ W W Norton & Co Inc; Reprint版 (2006/11/1)
発売日 ‏ : ‎ 2006/11/1
言語 ‏ : ‎ 英語
ペーパーバック ‏ : ‎ 336ページ
ISBN-10 ‏ : ‎ 0739471953
ISBN-13 ‏ : ‎ 978-0739471951
寸法 ‏ : ‎ 13.72 x 2.03 x 20.32 cm

カスタマーレビュー:
4.1 127個の評価

著者について

著者をフォローして、新作のアップデートや改善されたおすすめを入手してください。

David Leavitt

Brief content visible, double tap to read full content.

Full content visible, double tap to read brief content.

著者の本をもっと発見したり、よく似た著者を見つけたり、著者のブログを読んだりしましょう

カスタマーレビュー

5つのうち4.1つ

127グローバルレーティング

この商品をレビュー

カスタマーレビューを書く

レビューのソート基準

上位レビュー、対象国：日本

レビューのフィルタリング中に問題が発生しました。後でもう一度試してください。

松下重悳

コンピュータを発明した英数学者Turingの光と影

2006年4月18日に日本でレビュー済み

Amazonで購入

　情報科学を学んだ者にとっては、その端緒を拓いた英数学者Turingは、Turing Machineの名と共に創世記の人である。そのTuringが輝かしい業績にも拘らず、孤立的な性格と同性愛で身を滅ぼし自殺したとは、一面聞きたくもないような気もするが、事実としては多いに興味がある。

　著者は膨大な関連情報の読み込みと現地調査を踏まえて、Turingの生涯と、彼が関与したTuring Machineや暗号技術や初期のコンピュータなどを余すところなく描いているから面白い。ただ惜しむらくは、若干中途半端の嫌いがある。もう少し技術面を充実すれば「Turingの時代の科学史」になるが、それには著者の技術面の理解がもっと深まる必要がある。逆にTuringと直接は関係しない技術面をもう少し割愛し、Turingの喜怒哀楽を中心に描けば「Turingの生涯記」になってもっと面白かった。

　著者はTuringは自殺したのではなく、国家による謀殺かも知れないと疑っており、だからこの表題である。

4人のお客様がこれが役に立ったと考えています

役に立った

他の国からのトップレビュー

すべてのレビューを日本語に翻訳

Amazon Customer

Excellent!

2019年3月22日にカナダでレビュー済み

Amazonで購入

Très bonne lecture détaillée. Récit de vie des plus intéressant.

レビューを日本語に翻訳する

jay pister

Underrated Glory

2017年8月12日にアメリカ合衆国でレビュー済み

Amazonで購入

The acceptance of the man Alan Turing , and fully acknowledging his contribution to the world is barely understood as the general knowledge of The value of what he had done is so difficult to grasp. Considering the battles that had hinged upon the intelligence provided by Ultra, an analyst can reasonably conclude that this was the biggest story of the war, Without having won Stalingrad, the landings of Normandy and the battle of the Ardennes, the war could easily have been lost !!! Few persons have accurately been able to convey what it would have been like to have had the Allies lose World War 2 !!! The fact that he was a homosexual , and was so wrongly persecuted should factor into our modern thinking where "Don't ask...don't tell " was the best policy for any and all sexual preferences. Between Alan Turing , breaking the Enigma codes, and Werner Heisenberg , who purposefully sabotaged the German atom bomb effort, they are the two big heroes of the war . The world owes both a tremendous debt of gratitude. It should also be noted that the military edge in the Cold War, was owed more to our grasp of computer technology and coordinated systems that his intelligence and further development of his ideas, had provided the West with, was also a contribution that is underrated. .

3人のお客様がこれが役に立ったと考えています

レビューを日本語に翻訳する

W. Swales

A many-faceted illustration of how Turin and his leap in mathematics gave the world the programmable computer

2014年3月23日に英国でレビュー済み

Amazonで購入

Here David Leavitt provides a fascinating insight into the mind of a genius – Alan Mathison Turin – the man who invented the computer – the machine that changed the world forever – but the work goes much deeper than simply examining how Turin’s thought processes led to his masterstroke to invent a ‘universal machine’ capable of being a spreadsheet one minute; a gaming machine in the next; or a word processor, audio-visual entertainment device, or a global networking and communication device - and all things in-between - in the next – all at the press of a button; a turn of a wheel; a click of a mouse; or a stroke of a screen.

Yes Turin’s early life is covered – illustrating how his genius approach to mathematics was on a level that was so superior to the masters that taught him, that in their inability to comprehend the work of this British genius, the best that the masters could do was demoralise him by saying that his work was ‘sloppy’; yes the record is set straight on how John von Neumann plagiarised Turin’s ideas and published them as his own – which led to IBM claiming to have invented the worlds first programmable computer – when in fact Turin had invented it 16 years previously and had several commissioned and built at Bletchley Park to serve its purpose to crack the most complex cipher ever invented (the ‘Enigma’), in Britain’s time of need in The Second World War; and yes the distasteful and ultimately tragic blot on an otherwise stellar career – eventually leading to a posthumous pardon given by David Cameron in 2012 – is addressed - along with much more besides; but on the way, the author offers a delightful discourse into how people such as Kurt Gödel and Alan Turin tore mathematics to shreds on three counts: incompleteness; inconsistency; and (the biggy) DECIDABILITY.

Gödel tackled consistency and reliability – to discover such things as to why when the square root of (say) nine yields a number (in this case 3) that when multiplied by itself correctly yields the original number (9 in my example), yet when the square root of TWO is calculated, it does NOT yield a number that when multiplied by itself yields TWO – which leads to errors in navigation – which is one of the reasons why your satnav is ALMOST correct – but not quite! Ask Christopher Columbus – the man who discovered America when he was aiming his ships for India.

Appreciating that mathematics as we know it cannot be used to prove itself consistent or complete – and hence cannot be TRUSTED as a means to test its own VALIDITY because of ominous disturbing flaws such as the simple example that I have just illustrated, Turin tackled DECIDABILITY – is there a way that mathematics could be pressed into service to make a DECISION about the ‘correctness’ of the result that a formula had yielded? (If this is ‘considered’ true then do that, otherwise do this instead).

The answer is a loud YES – Turin’s thinking changed mathematics irrevocably – and Turin’s wisdom gave the world the ‘thinking machines’ that we enjoy today in every aspect of our daily lives - be it a cardiogram monitor, or an intelligent and extremely ‘intuitive’ mobile phone – with many many more devices to improve mankind’s lot on the horizon in the foreseeable future.

The book itself is not an ‘easy’ read because the author gets himself bogged down with his valiant attempt to explain how a computer does what it does, whilst also getting bogged down with how the Enigma encryption system works, and how Turin went about cracking a polyalphabet encryption system whose cipher changed with every key press on a typewriter, as well as illustrating why maths as we know it is flawed; so one ends up entering a quagmire of fascinating but superfluous and somewhat complex concepts when: a) these could have been explained in a much simpler and more enlightening way (see my footnote below); and b) the digressions – as enthralling as they are - become distractions if one is attempting to read about Alan Turin and the fascinating and captivating ill-fated life he led in an eerie, sinister world that treated him with despicable, contemptuous disrespect – and why he was deemed to be ‘The man that knew too much’ – which begs the question ‘Was Turin’s suicide an accident?’

As an aside, should you wish to explore the potency of Turin’s ‘thought machine’ then obtain a copy of Arthur C Clark’s ‘2001 – a space odyssey’ (now available fully restored on BluRay).

Should you wish for a deeper insight into the mathematical side of things then purchase a copy of ‘An eternal golden braid’ by Douglas Hofstadter – which features the work of Gödel, Escher, and Bach.

I also recommend you visit Bletchley Park where you will see a fully operating replica of Turin's machine and enjoy much more besides.

Footnote:

Turin’s computer used two modes of operation: ‘fetch’ and ‘execute’.

The ‘fetch’ cycle ‘fetched’ the instruction from a ‘store’, which ‘told’ the central processor what to do.

The ‘execute’ cycle could fetch data to be processed from another ‘store’; manipulate the data; store the results elsewhere; and also made COMPARISONS. It was THIS leap in ‘decidability’ that gave Turin’s ‘Engine’ its mighty power.

If the comparisons MATCHED then a ‘match’ set of instructions was carried out.

If the comparison did NOT match then a ‘not match’ set of instructions was carried out.

Think of it as akin to looking for a person you know in a crowd – and they are wearing specific attire that you will recognise – and you spot someone wearing such attire. In the ‘match’ situation you would ‘execute’ an algorithm to ‘approach the person’ and then make a second comparison to see if the ‘matched’ person is the person you seek.

In the ‘not match’ situation you would ‘execute’ an algorithm to ‘continue to scan the crowd – always looking for the person that you will recognise wearing such attire’.

In the ‘comparison’ situation you would also carry out a ‘test’ to see if you have checked everyone, so as not to ‘lock up’ the computer in a fruitless ‘closed loop’ of never-ending tests.

Adopting the BINARY system, Turin used numbers in five unique ways:

1 As an incrementing ‘program pointer’ INTEGER (whole number) that ‘points’ to a location in a ‘read only’ ‘store’ (ROM) that contains a ‘sequential programme of ‘instructions’ – instructions which could be CHANGED to suit the requirement.

2 As a second ‘pointer’ called a ‘data pointer’ that ‘points’ to a location that contains the DATA in a ‘random access’ ‘store’ (RAM).

3 As a ‘machine code number’ that uniquely configures a ‘central processing unit’ (CPU) to perform a ‘one-step’ operation. Here, the ‘machine code’ is ‘fetched’ from the location ‘store’ that the ‘programme pointer’ is indexing, and then ‘copied’ into a REGISTER in the CPU (the ‘brain’) as a ‘one-step’ instruction to ‘tell’ the CPU what to do at THAT step of the process (for example add two numbers together).

4 As the DATA that requires manipulation – which is ‘fetched’ from the location ‘store’ that the ‘data pointer’ is indexing, and then ‘copied’ into a REGISTER inside of the CPU – in readiness for processing.

5 As a means of TESTING for VALIDITY using what we now refer to as ‘Boolean Logic’.

Using this approach, Turin and his team were able to swiftly look for points of vulnerability in the enciphered text and then ruthlessly take advantage of them by testing for ‘matches’ at great speed. His approach not only cracked the ciphertext generated by German Enigma machines, his ‘engines’ also determined the configuration of each encryption rotor and its relative position and setting in the Enigma machine – his ‘bombe’ (computer) had ‘intelligence’.

I now offer a simplified description of the fetch and execute sequences to obtain two numbers from a store, add them together, and then place the answer back into the store for your entertainment, so as to give you an insight into what you will encounter in the book as well as give insight into how the modern computer 'computes'.

Consider:

The ‘program pointer’ points to store location ‘100’ and in store location 100 is the MACHINE CODE NUMBER ‘22’.

The ‘data pointer’ points to location ‘350’ and in location ‘350’ is the DATA VALUE ‘45’.

Let us assume that the CODE number ‘22’ instructs the CPU to put a data value indexed by the ‘data pointer’ into ‘Register A’.

On the ‘fetch’ cycle, the CODE number ‘22’ is clocked into the CPU. This instructs the CPU to put a data value from the data store (now called RAM) into ‘Register A’.

On the ‘execute’ cycle, the data value (45) that the ‘data pointer’ points to, is placed into ‘Register A’; the ‘program pointer’ is incremented by one, and now points to location 101; and the ‘data pointer’ is incremented by one - and now points to location 351 – which holds the data value ‘3’.

Let us assume that in location 101 is the machine code number ‘23’ and that the CODE number ‘23’ instructs the CPU to put a data value from the data store into ‘Register B’.

On the ‘fetch’ cycle, the CODE number ‘23’ is clocked into the CPU. This instructs the CPU to put a data value into ‘Register B’.

On the ‘execute’ cycle, the data value (3) that the ‘data pointer’ points to, is placed into ‘Register B’; the ‘program pointer’ increments by one and now points to location 102; and the ‘data pointer’ increments by one and now points to location 352.

Let us now assume that in location 102 is the machine code number ‘48’ and that the CODE number ‘48’ instructs the CPU to add the value in ‘Register B’ to the value in ‘Register A’.

On the ‘fetch’ cycle, the CODE number ‘48’ is clocked into the CPU. This instructs the CPU to add the value in ‘Register B’ to the value in ‘Register A’ - the RESULT will be in ‘Register A’.

On the ‘execute’ cycle, the data value ‘3’ copied from data store 351 into ‘Register B’ is added to the data value ‘45’ copied from data store 350 into ‘Register A’ – the result (48) now residing in ‘Register A’.

Let us now assume that in location 103 is the machine code number ‘56’ and that the CODE number ‘56’ instructs the CPU to put the data value in ‘Register A’ into the data store.

On the ‘fetch’ cycle, the CODE number ‘56’ is clocked into the CPU. This instructs the CPU put the data value in ‘Register A’ into the data store.

On the ‘execute’ cycle, the data value ‘48’ that resides in ‘Register A’ is transferred from ‘Register A’ into the location that ‘data pointer’ points to (352); the ‘program pointer’ increments by one and now points to location 104; and the ‘data pointer’ increments by one and now points to location 353.

As I trust this simplistic description illustrates, through a continuous series of ‘fetch’ and ‘execute’ sequences it is possible to programme the computer to perform ANY task – sequentially – one step at a time – just as you are experiencing right now!

5人のお客様がこれが役に立ったと考えています

レビューを日本語に翻訳する

Gigi

La storia di una persona eccezionale

2013年5月19日にイタリアでレビュー済み

Amazonで購入

Tutti dovrebbero conoscere il lavoro e la vita di Alan Turing, morto suicida perseguitato dall'ottusità degli uomini.
Oltretutto il libro è scritto benissimo

1人のお客様がこれが役に立ったと考えています

レビューを日本語に翻訳する

Ann Ivory

A brilliant man who was treated unfairly.

2016年1月8日にオーストラリアでレビュー済み

Amazonで購入

A very good book, but it has a lot of technical stuff in it that is not central to the story. You can just skip these pages and nothing is lost in the telling of the story. Sadly this book also shows the way homosexuals were treated up until recently.

レビューを日本語に翻訳する

レビューをすべて見る

Amazon Advertising 商品の露出でお客様の関心と反応を引き出す	Audible（オーディブル）「聴く」読書会員なら聴き放題	アマゾンウェブサービス（AWS）クラウドコンピューティングサービス	Amazonアウトレット訳あり商品をお手頃価格で販売

Amazonビジネス（法人購買）請求書払い法人価格・数量割引	AmazonGlobal 65か国/地域以上への海外配送がより簡単に	Shopbop 世界中の厳選されたファッションアイテム

著者をフォロー

Man Who Knew Too Much: Alan Turing And the Invention of the Computer (Great Discoveries) ペーパーバック – 2006/11/1

購入オプションとあわせ買い

商品の説明

レビュー

著者について

登録情報

著者について

David Leavitt

カスタマーレビュー

この商品をレビュー

上位レビュー、対象国： 日本

レビューのフィルタリング中に問題が発生しました。後でもう一度試してください。

他の国からのトップレビュー

上位レビュー、対象国：日本