Paul Graham, “Hackers & Painters” A Summary In “Hackers & Painters, Paul Graham, computer science expert and painter, explains examines what motivates computer programmers to do what they do, as well as attempt to answer many of the questions that have arisen with computers. He explains the word “hacker” has more than the one definition most of us are familiar with. The hackers who Paul Graham refers to throughout the book are the good computer programmers who have made all that we have real. Graham's first chapter, "Why Nerds Are Unpopular," tries to explain why smart kids are at the bottom of the food chain in high school and what their priorities are. While writing about nerds, Graham talks about his own progress to become computer scientist and painter. He explains the similarities between painters and computer hackers, including the desire to make existing things better.
Computers - indispensable part of our life Computers have become a major part of our lives today. We use them for tests, entertainment, organization, studying, etc. They are a vital essential in the world we live in. Without them the world would fall apart. It is impossible to imagine how people functioned in the old days when computers did not exist. Computers have become almost as smart as us. We use our computers daily. After a long day in school, we usually turn on our computers and use them for learning and studies. Computers provide a big variety of information which is available for us to search. And all the information is gathered in Internet. Internet is everyone's door to the world and to the vast knowledge of everything. Computers have significant advantages over people in a few select areas. They can store huge amounts of information that they will never forget, they can organize and retrieve that information ver...
The importance of the internet in our lives Nowadays there has been huge development in electronics and people are using computers more than ever before. Programmers has created a virtual environment where people can chat with each other, read newspaper and do almost everything. To start with, I do not know anyone who does not have computer or access to internet. Internet has became very popular because for low price you can send letters, chat with your friends live in msn and even have video conversations with them. Furthermore, the internet is like a world biggest library. There is a lot of information about everything. For example, if you want to know the name of Estonian president you will find it in the internet,in few minutes. In the other hand, sitting too many hours in computer is not good for your eyes. For example,more and more people are wearing classes because of watchin...
Table of Contents 1. Background ..............................................................................................................................2 2. Business Plan............................................................................................................................2 2.1. Mission..............................................................................................................................2 2.2. Values ...............................................................................................................................2 2.3. SWOT Analysis of the Organization ................................................................................2 2.4. Opportunities ....................................................................................................................3 2.5. Primary Processes .........................................
Games Programming with Java and Java 3D Andrew Davison Dept. of Computer Engineering Prince of Songkla University HatYai, Songkhla 90112 E-mail: [email protected] Draft: 14th January 2003, #2 Abstract This article looks at the advantages and disadvantages of using Java and Java 3D for games programming. It assumes the reader is familiar with Java, but presents short overviews of gaming, the low-level APIs OpenGL and DirectX, and Java 3D. No programming examples are included here, although links to online code are supplied. 1. Background to Gaming Giving a definition for `computer game' is problematic, due to the wide range of game types. For example, the ArcadePod site (http://www.arcadePod.com) divides its hundreds of Java games into more ...
Aristoteles (470-399 e.m.a) : väidete struktuur kui iseseisev uurimisobjekt 1967- IBM builds the first floppy disk Süllogism (Aristoteles): 1967 - Seymour Papert designed LOGO as a computer language for children. 1. eeldus: iga x on y. 1968 - Robert Noyce and Gordon Moore found Intel Corporation 2. eeldus: mõni z on x. 1968 - Douglas C. Engelbart, of the Stanford Research Institute, demonstrates järeldus: mõni z on y. his system of keyboard, keypad, mouse, and windows at the Joint Computer Iga b on a Conference in San Francisco's Civic Center. He demonstrates use of a word Mitte ükski b pole a ...
Linux/ BSD OS sõnaraamat A Apache – Apache is a freely available Web server that is distributed under an "open source" license. Version 2.0 runs on most UNIX-based operating systems. - Tasuta kõigile kättesaadav veebiserver, 2.0 versioon jookseb enamustel UNIX'i põhistel OS'idel. Adaptive Server Enterprise (ASE) – Adaptive Server Enterprise (ASE) is a relational database management system ( RDBMS ) from Sybase, Inc. that runs on Linux and other Unix -based operating systems, Windows NT and Windows 2000 , and Mac OS. - Andmebaasi haldamissüsteem, mille lõi Sybase ettevõte. See jookseb kõigil Unixi põhistel- , Windows NT-, Windows 2000- ja Mac operatsioonisüsteemidel. B Bourne Again Shell (bash) – Bash (Bourne Again Shell) is the free version of the Bourne shell distributed with Linux and GNU operating systems. - Bourne shelli tasuta versioon Linuxile ja GNU-ga operatsioonisüsteemidele. Bash Cheat Sheets – Webpage...
1. Suuruse numbrid ja mida nad tähendavad ? 1 bit = 1 binary digit 1bait = 8bitti 1kilobait = 1024 baiti Megabait = 1,048,576 baiti Gigabait = 1,073,741,824baiti Terabait = 1 trillion baiti Esimene mikroprose: intel 4004 von Neumann-type computer - Stored-program Computer KÜSIMUSED: Nimeta vähemalt üks oluline teooria- alane tulemus Alan Turingilt. Millisel aastakümnel see tulemus saadi? Turingu test 1940 Millal loodi programmeerimiskeel Fortran (pluss- miinus kolm aastat on OK)? Mille poolest on Fortran eriline? 1957, kõrgema taseme programmeerimiskeel, mis võimaldas loop´ida. Millisel sajandil elas saksa filosoof Leibniz? Milliseid tehteid suutis teha Leibnizi ehitatud arvuti? 17. sajandil , liitis, lahutas, korrutas, jagas Mis aastal hakati müüma arvutit nimega Commodore PET(pluss - miinus kaks aastat on OK)?1968 Millal loodi Intel Corp (pluss miinus kaks aastat on OK)? Mida ...
I 625 S(hirl(rfll l6-lr) Bl;ilsc Pn$.il1-:lntltecliliilc illitslt ebmgqav: Fortran, C (portaabel assembler), ALslrgKse[-ia r Pakkudaprogrffimeedjalevalmisehtudstandardtiikke- ...
1. OBJECT-ORIENTED PARADIGM The Model •The model defines an abstract view to the problem. This implies that the model focuses only on problem related stuff and that you try to define properties of the problem. These properties include: 1 •the data which are affected and 2 •the operations which are identified by the problem. Object-oriented Paradigm •Everything is an object •A program is a bunch of objects telling each other what to do by sending messages •Each object has its own memory made up of other objects •Every object has a type •All objects of a particular type can receive the same messages Domain Model •A domain model does not represent the entire domain as it is in the real world. It includes only the concepts that are needed to support the application. Object •Is a partitioned area of memory where object code is stored •The area of memory is protected •This code can function relatively independently of othe...
Sissejuhatus infotehnoloogiasse 1. Loeng Algoritm on täpne samm-sammuline, kuid mitte tingimata formaalne juhend millegi tegemiseks. Näited: a. Toiduretsept. b. Juhend ruutvõrrandi lahendamiseks Algoritmiline probleem - probleem, mille lahenduse saab kirja panna täidetavate juhendite loeteluna. Programm on formaalses, üheselt mõistetavas keeles kirja pandud algoritm. Arvutid suudavad täita ainult programme. Analoogsüsteem andmeid salvestatakse (peegeldatakse) proportsionaalselt Näit: termomeeter, vinüülplaat, foto Digitaalsüsteem (pidevad) andmed lõhutakse üksikuteks tükkideks, mis salvestatakse eraldi Näit: CD, arvutiprogramm, kiri tähtede ja bittidena Ühelt teisele: digitaliseerimine The three major comparisons of computers are: Electronic computers versus Mechanical computers...
Turingi masin 1937 Universaalne masin suudab arvutada/järeldada kõike Turingi tees: kõike mida saab üldse mingi masinaga järeldada/arvutada, saab ka Turingi masinaga arvutada Parmenides (5 saj. e.m.a) kasutas pikki loogilisi põhjendusi. Zenon Elast (5 saj e.ma) paradoksid Sofistid-Sokrates (470-399 e.m.a), Platon (428/427 - 348/347e.m.a) Aristoteles: väidete struktuur kui iseseisev uurimisobjekt Süllogismi näited:1eeldus:iga koer on imetaja, 2eeldus mõned neljajalgsed on koerad, järeldus: mõned neljajalgsed on imetajad. Süllogism on väitlus, kus mingitest etteantud väidetest järeldub paratamatult uus väide. Aristotelese puhul alati kaks kategoorilist eeldust, üks kategooriline järeldus Stoikud uurisid, kuidas saab loogiliste sidesõnade (ja, ei, või, kui ...siis)abil lihtsamatest lausetest keerulisemaid kokku panna ja kuidas näidata selliselt moodustatud lausete õigsust. Ramon Llull 1235- 1315 müstik Peateos Ars magna, generalis et ultim...
tutvu lausearvutuse keskkonnaga: http://logik.phl.univie.ac.at/~chris/gateway/formular-uk-zentral.html Millistel muutuja väärtustel on lause (Av(B&A))v(-A&(Cv(B&-C))) väär? Panna tuleb results only, 0 on väär 1 on õige Tutvu ajalooga saidis kuni II maailmasõda: http://www.maxmon.com/history.htm Loe läbi jutt ja proovi andmetega mängida: http://math.hws.edu/TMCM/java/DataReps/index.html Kahend süsteemi arvu(101101001) ->kümnend süsteemiks. Nr sisse ja bianarile punkt, ja vaatan base ten integeri kümnendarvudest annab Ecki appletis juuresoleva graafilise kujutise, teen kujundi ja vaatan base integeri mis vastab kahendsüsteemi arvule 1110001 ASCII tabelis? Nr sisse ja punkt bianari, vaatan ...teksti Kümnendsüsteemi arv 33 on kahendsüsteemis? 33 kirjutan ja Base-ten integer, vaatan bianary Loe läbi jutud Atbashi ja Caesari šifri (Caesar cipher) kohta: http://www.wikipedia.org 2 Tutvu ajalooga kuni 1970ndad: http://www.islandnet.com/~...
A... AA Auto Answer AAA Authentication, Authorization and Accounting AAB All-to-All Broadcast AAC Advanced Audio Coding AACS Advanced Access Control System AAL Asynchronous Transfer Mode Adaption Layer AAM Automatic Acoustic Management AAP Applications Access Point [DEC] AARP AppleTalk Address Resolution Protocol AAS All-to-All Scatter AASP ASCII Asynchronous Support Package AAT Average Access Time AATP Authorized Academic Training Program [Microsoft] .ABA Address Book Archive (file name extension) [Palm] ABAP Advanced Business Application Programming [SAP] ABC * Atanasoff-Berry Computer (First digital calculating machine that used vacuum tubes) ABEND Abnormal End ABI Application Binary Interface ABIOS Advanced BIOS ABIST Automatic Built-In Self-Test [IBM] ABLE Adaptive Battery Life Extender + Agent Building and Learning Environment [IBM] ABM Asynchronous Balanc...
1.The Conceptual Architecture identifies the high-level components of the system, and the relationships among them. Its purpose is to direct attention at an appropriate decomposition other system without delving into details. Moreover, it provides a useful vehicle for communicating the architecture to non-technical audiences, such as management, marketing, and users. Logical Architecture In Logical Architecture, the externally visible properties of the components are made precise and unambiguous through well-defined interfaces and component specifications, and key architectural mechanisms are detailed. The Logical Architecture provides a detailed "blueprint" from which component developers and component users can work in relative independence. Logical Architecture. Model System Behavior Execution Architecture An Execution Architecture is created for distributed or concurrent systems. The process view shows the mapping of components on...
EKSAMIKÜSIMUSED 2005 Sisukord Sisukord............................................................................................................................................1 Arvuti riistvara matemaatilised alused ............................................................................................ 4 Kahendsüsteem............................................................................................................................4 Boole funktsioonid ja nende esitus..............................................................................................4 Diskreetne aeg............................................................................................................................. 4 Lihtsamaid Boole` funktsioone realiseerivad loogikaelemendid.................................................... 5 AND...........................................................
EKSAMIKÜSIMUSED 2005 Sisukord Sisukord ..................................................................................................................................................... 1 Arvuti riistvara matemaatilised alused ...................................................................................................... 4 Kahendsüsteem .............................................................................................................................. 4 Boole funktsioonid ja nende esitus................................................................................................ 4 Diskreetne aeg ............................................................................................................................... 4 Lihtsamaid Boole` funktsioone realiseerivad loogikaelemendid ............................................................. 5 AN...
VEEBIT EENUSED. KONT ROLLTÖÖ. SOA o A service-oriented architecture (SOA) is an architectural pattern in computer software design in which application components provide services to other components via a communications protocol, typically over a network. The principles of service-orientation are independent of any vendor, product or technology. o Kasutab XMLi sõnumivahetuseks o Võimalus integreeride süsteeme Service-oriented architecture (SOA) Arhitektuur, mis kasutab – teenuseid organisatsiooni integrastiooni ehitusklotsidena – komponentide taaskasutust läbi nõrga seotuse. SOA: On arhitektuur Mingi hulga teenuste tegemine ei anna meile SOA-d. Arhitektuur peab andma meile juhised teenuste loomiseks. SOA: Ehitatakse teenustest Nagu objekt-orienteeritud maailmas on objekt/klass nii on SOA-s teen...
Arvuti riistvara matemaatilised alused · Kahendsüsteem Digitaalseadmetes teostatavate arvutuste ja muu infotöötluse kiirus, täpsus ja arusaadavus sõltub suuresti seadmes kasutatavast arvutussüsteemist. Digitaaltehnikas domineerib kahendsüsteem nii iseseisva süsteemina kui ka teiste arvusüsteemide realiseerimise vahendina ja seda järgmistel põhjustel: Füüsikalise realiseerimise lihtsus tehete sooritamise põhimõtteline lihtsus funktsionaalne ühtsus Boole'i algebraga, mis on loogikalülituste peamine matemaatiline alus. Kahendsüsteem kuulub positsiooniliste arvusüsteemide hulka nagu kümnendsüsteemgi. Kahendarvu kohta nimetatakse bitiks. Vasakpoolseim koht on kõrgeim bitt ja parempoolseim madalaim bitt. · Boole funktsioonid ja nende esitus Digitaalseadmete realiseerimise matemaatiliseks aluseks on valdavalt kahendloogika ja kahendfunktsioonid. Kahendfunktsioone saab esitada olekutabelite abil, kus 2 n (n- argumentide väärtuste või...
Some of the things you will learn in THE CODEBREAKERS • How secret Japanese messages were decoded in Washington hours before Pearl Harbor. • How German codebreakers helped usher in the Russian Revolution. • How John F. Kennedy escaped capture in the Pacific because the Japanese failed to solve a simple cipher. • How codebreaking determined a presidential election, convicted an underworld syndicate head, won the battle of Midway, led to cruel Allied defeats in North Africa, and broke up a vast Nazi spy ring. • How one American became the world's most famous codebreaker, and another became the world's greatest. • How codes and codebreakers operate today within the secret agencies of the U.S. and Russia. • And incredibly much more. "For many evenings of gripping reading, no better choice can be made than this book." —Christian Science Monitor THE ...
PRAISE FOR The 4-Hour Workweek "This is a whole new ball game. Highly recommended." --Dr. Stewart D. Friedman, adviser to Jack Welch and former director of the Work/Life Integration Program at the Wharton School, University of Pennsylvania "It's about time this book was written. It is a long-overdue manifesto for the mobile lifestyle, and Tim Ferriss is the ideal ambassador. This will be huge." --Jack Can eld, cocreator of Chicken Soup for the Soul®, 100+ million copies sold "Stunning and amazing. From mini-retirements to outsourcing your life, it's all here. Whether you're a wage slave or a Fortune 500 CEO, this book will change your life!" --Phil Town, New York Times bestselling author of Rule #1 "The 4-Hour Workweek is a new way of solving a very old problem: just how can we work to live and prevent our lives from being all about work? A world of in nite...
More praise for Influence: Science and Practice! "We've known for years that people buy based on emotions and justify their buying decision based on logic. Dr. Cialdini was able, in a lucid and cogent manner, to tell us why this happens." --MARK BLACKBURN, Sr. Vice President, Director of Insurance Operations, State Auto Insurance Companies "Dr. Cialdini's ability to relate his material directly to the specifics of what we do with our customers and how we do it, enabled us to make significant changes. His work has enabled us to gain significant competitive differentiation and advantage" -LAURENCE HOF, Vice President, Relationship Consulting, Advanta Corporation "This will help executives make better decisions and use their influence wisely ... Robert Cialdini has had a greater impact on my thinking on this topic than any other scientist." -CHARLES T...
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