Vietnam Assistive Technology

Wednesday, November 10, 2010

Quiz game / Adivinha

This article is written in English and Portuguese
Este artigo está escrito em Inglês e Português

English version:

If you have 15m I'd like to propose you a quiz game. Go to this webpage:

http://www-01.ibm.com/software/data/informix/library.html

scroll down to the white papers section and open the one titled "Smart Systems Require an Embedded Database: Six Criteria to Consider"
It's a joint IBM and Cisco whitepaper that talks about the characteristics a database should have to be used as an embeddable database. The characteristics are analyzed through six criteria: installation, integration, performance, resource management, administration and availability.
If you know what have been introduced in Informix in the latest releases you'll find this quite amusing. So what's the quiz? Try to find out what database the paper is talking about. I don't need to tell you the answer, mainly because you'll surely find out by yourself, but also because the answer is discreetly given at the end of the paper...
It's public that some Cisco equipments include Informix (Cisco support forums support this claim). I personally believe this is enough proof that Informix is an excellent product if you need to embed a database in your solution (whether it is software only or software and hardware). If you take some time to check the latest versions new features you'll find lots of improvements for this type of use.

Versão Portuguesa:

Se tiver 15m livres gostava de lhe propor um jogo de adivinha. Vá até esta página:

http://www-01.ibm.com/software/data/informix/library.html

desça até à secção dos white papers e abra o intitulado "Smart Systems Require an Embedded Database: Six Criteria to Consider" (apenas em Inglês)
É um documento conjunto entre a IBM e a Cisco que fala sobre as características que uma base de dados deve ter para ser usada como uma base de dados embebida. As características são analisadas segundo seis critérios: instalação, integração, desempenho, gestão de recursos, administração e disponibilidade.
Se sabe o que tem sido introduzido no Informix nas últimas versões, vai achar este documento divertido. Portanto qual é a adivinha? Tente descobrir qual é a base de dados falada no documento. Não necessito de lhe dar a resposta aqui, principalmente porque conseguirá perceber a resposta sozinho, mas também porque a resposta é dada de forma muito discreta no final do documento...
É público que alguns equipamentos Cisco incluem Informix (os fóruns de suporte da Cisco sustentam esta afirmação). Pessoalmente acredito que isto é prova suficiente de que o Informix é um excelente produto se necessita de embeber uma base de dados na sua solução (seja apenas de software ou software e hardware).
Se tirar algum tempo para verificar as novas funcionalidades das últimas versões encontrará imensas melhorias para este tipo de utilização.

Tuesday, November 9, 2010

What Would Happen if Reading Was More Social?

It is hard to imagine my world without books yet for many students this is their reality. From a young age I could always remember my love for reading. For many, reading is a very personal and solitary activity. But things are about to change. You see it is now possible using eReaders like the Kindle to share ideas and engage others in the books that you are reading. With so many students engaged in the use of electronic and digital devices we have seen that the amount of time students are reading books has plummeted. Yet we know from a recent study ( 2010 Kids & Family Reading Report-published by the Harrison Group) that many students reported that they would be very interested in reading an e-book on an electronic device. Devices like the Kindle are very appealing reading devices because of all the built in features. Many students will enjoy the ability to change the size of the font or use the text to speech feature to have the book read to them. But from my perspective the Kindle opens up all kinds of possibilities for making reading a more social activity.

Now for a moment imagine that all of your students in your reading class had Kindles and were reading the same novel on their eReader. You with me so far? On the Kindle it is possible for the students to set up their social networks like Facebook and Twitter which would allow then to automatically post text they highlight in the book as well as notes they have taken on a particular passage. If all of the students have Facebook and Twitter accounts they can simply log into their accounts and view what their friends have posted about the book. If students use a simple # hashtag when posting their notes then it would be possible to search their Twitter accounts to see what everyone has posted. Likewise students could use a service like Tweetchat and with the hashtag have real time discussions about the book. Students would need to have access to WiFi to accomplish this, but as we move forward being able to utilize social networking to engage students in the reflection and discussion of the books they are reading can be a tipping point to more fully engage students in the reading process.Bring social networking into the reading process may just be the factor that keeps students engaged and coming back for more. I would be interested in your perspective so please leave comment.

Tuesday, November 2, 2010

DAISYtoEPUB to Kindle 3

In a previous post I shared my experiences using the Kindle 3 which to date is probably the best selling eReader in the marketplace. I'm sure that the Kindle 3 will be on top of the list for gifts this holiday season with nearly every big box store carrying it. One of the reasons why I had decided to buy the Kindle 3 was that it was the only dedicated eReader that has built in text to speech. Working with a lot of students with reading disabilities I wanted to see how the Kindle could be used by them, to access their books with text to speech support. While a lot of the publishers at their discretion can turn off the text to speech component it is still exciting to think of all the ways students can access text using this device. Now imagine the ramifications of your students who have access to Bookshare being able to read their NIMAS books on their favorite eReader the Kindle. Well it is now possible and let me share with you how you can do this.

Just this week Don Johnston released a new application for the Mac and Windows called DAISYtoEPUB that can convert DAISY (Digital Accessible Information System), NIMAS and Bookshare files to the popular ePub format.The ePub format is the most popular format for ebooks and is supported natively on the iPad, iPod Touch, iPhone, NOOK, and Sony Readers. If you are using the iPad, once the file is converted you can turn on VoiceOver and have the the book read aloud with the text to speech.

DAISYtoEPUB is extremely easy to use and within seconds the file is quickly converted. Once you have used DAISYtoEPUB to convert the file getting the books onto the various aforementioned devices is quite straightforward. This is not the case if you are using the Kindle. While the Kindle supports a number of different eBook formats, unfortunately it does not support ePub. However, not all is lost in the conversion. You see, using the free application Calibre, you can bring the ePub book into the Calibre library and convert it to the Mobi format which is in fact supported by the Kindle. Using Calibre you simply drag the ePub formatted book into the Calibre Library and using the Conversion tool save it as Mobi formatted file. From here I simply plugged my Kindle 3 into the computer and sent the file from the Calibre application to my Kindle 3. It really was that easy. Now when I opened my Kindle I had the NIMAS file in the Kindle and using the text to speech feature the Kindle could access and read the pages, complete with the graphics.

While it did take me a couple of steps to accomplish this - just imagine how useful a tool this can be for someone to be able to access their DAISY, Bookshare, or NIMAS files on a small and lightweight eReader like the Kindle 3. If you have any questions- please let know . I would be interested in your comments. So if you have the chance take a look at the Don Johnston's latest application- DAISYtoEPUB.

IIUG 2011 Conference / Conferência IIUG 2011

This article is written in English and Portuguese
Este artigo está escrito em Inglês e Português

English Version:

IIUG has just opened the 2011 IIUG conference registration. The conference will be held in May 15-18 2011, at the usual place, the Marriot Overland Park hotel in Overland Park, Kansas City. The conference can cost as little as:

$525 for the conference registration (if you register before January 31 and you're an IIUG member)
$129 / night (Sunday and week days) plus $99 / night (Friday and Saturday)
Travel costs

Regular sessions will be held from Monday to Wednesday and there are special Sunday sessions (tutorials). From Sunday evening to Tuesday, you'll have breakfast, lunch and evening receptions to keep you well fed. So a typical stay (arriving and Sunday afternoon and leaving on Thursday will cost you around $525 + (4 * $129) + travel costs + Wednesday dinner which translates into around $1050 plus travel costs.

That's what you'll pay. What about what you'll get? Well, I can speak for the 2010 conference. It was by far one of the best training events I've ever been. If you work with Informix, or plan to work with Informix you have several options for training: IBM classes, Instructor Led Online (remote online training), custom classes in your company installations and IIUG conference. And one thing I can assure you: You won't get the networking, knowledge transfer and the possibility to interact with the IBM Informix technical staff anywhere else. Typically my biggest problem was to decide which session to attend. And next year, with the recent launch of Panther (v11.7) the sessions should be even more interesting. You also get the chance to take free certification tests (around $150). Besides all this the conference atmosphere is rather amusing and you'll get a lot of fun. Maybe you should omit this from your management or they may prefer to take your place! :)

So if you have a training budget you should consider this. It's also a rare opportunity to speak to the people who drive Informix's future. If you need a new feature, or if you find a limitation in the product there is no better place to explain it than at the conference.

In short, you'll get:

More interesting sessions than you'll be able to attend (it's a good idea to take a colleague and each one attend a different session at a time)
Free certification tests
Opportunity to talk with all the Informix gurus out there
Opportunity to interact with the Informix top architects
Networking with other users. You can do and promote your business there
Relaxed, friendly and fun atmosphere promoted by all the IIUG people
Opportunity to understand why the conference takes place in Kansas City (no distractions besides the green fields and having the Informix lab right next door)

All this for maybe less than the cost of a traditional 3 day course

Finally, IIUG is still accepting speakers nominations (until November 15). If you have something to present, be it a deep dive into some particular aspect of Informix, a good use case, a success story etc. please don't hesitate. Speakers will not pay for the conference (less $525 on the budget). Don't hold back if you have something interesting to show. The audience will be friendly and your presentation skills will be less important than your subject.

Versão Portuguesa:

O IIUG anunciou a abertura do registo para a sua conferência internacional de utilizadores de 2011. A conferência terá lugar de 15 a 18 de Maio de 2011, no local habitual, o hotel Marriot Overland Park, em Overland Park, Kansas City, EUA. O custo poderá ser tão pouco quanto:

$525 para o registo na conferência (se se inscrever antes de 31 de Janeiro e for membro do IIUG)
$129 / noite (Domingo a quarta-feira) mais $99 / noite (Sexta-feira e Sábado)
Custos de viagem

As sessões normais decorrem de Segunda a Quarta-feira e existem sessões especiais no Domingo (tutorials). Do final de Domingo até Quarta-feira terá pequeno almoço, almoço e recepção nocturna para o manter bem alimentado. Assim, uma ida típica (chegada no Domingo ao final da tarde e saída na Quinta-feira) custar-lhe-á cerca de $525 + ( 4 * $129) + custos de viagem + jantar de Quarta-feira, o que se traduzirá em cerca de $1050 mais viagens.

Isto é o que custa. E quanto ao que se recebe? Bom, eu posso falar pela conferência deste ano (2010). Foi de longe um dos melhores eventos de formação em que estive. Se trabalha com Informix, ou se planeia trabalhar com Informix tem várias opções de formação: Cursos da IBM, Instructor Led Online (formação online remota), cursos customizados nas instalações da sua empresa e a conferência do IIUG. E algo posso garantir: Não vai obter a possibilidade de interacção, a transferência de conhecimentos e a possibilidade de interagir com o staff técnico da IBM Informix em mais lado nenhum. Regra geral a minha dificuldade foi escolher a sessão a que iria assistir no horário seguinte. E no ano que vem, com o recente lançamento da versão 11.7 (Panther) as sessões devem ser ainda mais interessantes. Também tem a possibilidade de fazer testes gratuitos de certificação (rondam os $150).
Para além disto, a atmosfera da conferência é bastante engraçada e divertida. Mas talvez seja melhor omitir isto à sua gestão, ou podem preferir tomar o seu lugar! :)

Portanto, se tem um orçamento de formação deve considerar isto. É também uma rara oportunidade de falar com as pessoas que decidem o futuro do Informix. Se precisa de uma nova funcionalidade ou se encontrou uma limitação no produto não há melhor sitio que a conferência para o explicar.

Em resumo obterá:

Mais sessões de interesse que aquelas a que conseguirá assistir (é uma boa ideia levar um colega e dividirem-se pelas sessões concorrentes no horário)
Testes de certificação gratuitos
Oportunidade de falar com todos os gurus de Informix
Oportunidade de interagir com os arquitectos de topo do Informix
Interacção com outros utilizadores. Pode efectuar e promover negócios lá
Atmosfera descontraída e divertida, promovida por todos os elementos do IIUG
Oportunidade de perceber porque é que a conferência se realiza em Kansas City (poucas distracções para além dos campos verdes, e ter o laboratório de Informix mesmo ao virar da esquina)

Tudo isto possivelmente por menos custo que um curso tradicional de 3 dias.

Por último, o IIUG ainda está a aceitar nomeações para apresentações (até 15 de Novembro de 2010). Se tem algo para apresentar, seja uma visão aprofundada de algum aspecto do Informix, um bom caso de utilizaçao, uma história de sucesso etc. por favor não hesite.
Os apresentadores não pagarão a conferência (menos $525 no orçamento). Não se retraia caso tenha algo interessante para apresentar. A audiência será amigável e as suas qualidades de apresentação serão menos importantes que o tema em si.

Panther: Instance schema / Schema da instância

This article is written in English and Portuguese
Este artigo está escrito em Inglês e Português

English version:
This time I'll cover a little but helpful improvement in the dbschema utility. dbschema is the fastest way we have to extract DDL statements about our databases and tables. We can get the full database schema, or just for a table, view, synonym etc. It can also provide all the privileges of objects in the database.

Version 11.7 (Panther) introduces an extension to this tool. We can now obtain the following information at the instance level:

Allocated space (dbspaces, chunks...)
Location and size of the physical log
Location and size of the logical logs

This information was easily available either as the output of onstat commands or by querying the sysmaster database. But then you would need to construct the statements to allocate them. Also note that this could be done by using shell command line interface (onspaces utility) or (since version 11.10) by using the SQL Admin API.

So, now in version 11.7 you can obtain all this info in a ready to use format by running dbschema utility with the new option "-c". By default it will generate SQL statements you can use through the SQL Admin API. But if you also use the "-ns" option (no SQL) it will generate the operating system utilities syntax. Let's see an example of each. I will crop the output so that it does not become too long.


panther@pacman.onlinedomus.net:fnunes-> dbschema -c -q

--  Dbspace 1 -- Chunk 1
--  EXECUTE FUNCTION TASK
('create dbspace', 'rootdbs', 'rootdbs.c1', '250000', '0', '2', '500', '500');

--  Dbspace 2 -- Chunk 2
EXECUTE FUNCTION TASK
('create tempdbspace', 'dbtemp1', 'dbtemp1.c1', '100000', '0', '2', '100', '100');

--  Dbspace 3 -- Chunk 3
EXECUTE FUNCTION TASK
('create sbspace', 'sbs1', 'sbs1.c1', '20000', '0');

--  Dbspace 4 -- Chunk 4
EXECUTE FUNCTION TASK
('create dbspace', 'dbs1', 'dbs1.c1', '250000', '0', '2', '100', '200');

--  Physical Log
EXECUTE FUNCTION TASK
('alter plog', 'rootdbs', '50000');

--  Store pre-existing logical logs information before create new logical logs    
DATABASE sysadmin;    
CREATE TABLE llog (log smallint, flags  smallint);    
INSERT INTO llog SELECT number, flags FROM sysmaster:syslogfil;

--  Logical Log 1
EXECUTE FUNCTION TASK
('add log', 'rootdbs', '10000');

--  Logical Log 2
EXECUTE FUNCTION TASK
('add log', 'rootdbs', '10000');

-- [ CUTTED TEXT.... ]
-- [... more logical logs here... ]

--  Logical Log 10
EXECUTE FUNCTION TASK
('add log', 'rootdbs', '10000');

--  Drop all pre-existing logical logs     
EXECUTE FUNCTION TASK
('checkpoint');

SELECT TASK ('drop log', log) FROM sysadmin:llog    
WHERE sysmaster:bitval(flags,'0x02')==0;

EXECUTE FUNCTION TASK
('checkpoint');

SELECT TASK('onmode', 'l') FROM sysmaster:syslogfil    
WHERE chunk = 1 AND sysmaster:bitval(flags,'0x02')>0;

EXECUTE FUNCTION TASK
('checkpoint');

SELECT TASK ('drop log', log) FROM sysadmin:llog    
WHERE sysmaster:bitval(flags,'0x02')==1;

DROP TABLE sysadmin:llog;

And now with the -ns option:


panther@pacman.onlinedomus.net:fnunes-> dbschema -c -q -ns
# Dbspace 1 -- Chunk 1
# onspaces -c -d rootdbs -k 2 -p rootdbs.c1 -o 0 -s 250000 -ef 500 -en 500

# Dbspace 2 -- Chunk 2
onspaces -c -d dbtemp1 -k 2 -t -p dbtemp1.c1 -o 0 -s 100000

# Dbspace 3 -- Chunk 3
onspaces -c -S sbs1 -p sbs1.c1 -o 0 -s 20000 -Ms 348

# Dbspace 4 -- Chunk 4
onspaces -c -d dbs1 -k 2 -p dbs1.c1 -o 0 -s 250000 -ef 100 -en 200

# Physical Log
onparams -p -s 50000 -d rootdbs -y

# Store pre-existing logical logs information before create new logical logs      
dbaccess sysadmin << END      
CREATE TABLE llog (log smallint, flags  smallint);      
INSERT INTO llog SELECT number, flags FROM sysmaster:syslogfil;      
END

# Logical Log 1
onparams -a -d rootdbs -s 10000

# Logical Log 2
onparams -a -d rootdbs -s 10000

## CUTTED TEXT HERE
## ... More logical logs...

# Logical Log 10
onparams -a -d rootdbs -s 10000

# Drop all pre-existing logical logs       
onmode -c
   
dbaccess sysadmin << END      
SELECT TASK ('drop log', log) FROM sysadmin:llog      
WHERE sysmaster:bitval(flags,'0x02')==0;      
END
   
onmode -c
   
dbaccess sysadmin << END      
SELECT TASK('onmode', 'l') FROM sysmaster:syslogfil      
WHERE chunk = 1 AND sysmaster:bitval(flags,'0x02')>0;      
END
   
onmode -c
   
dbaccess sysadmin << END      
SELECT TASK ('drop log', log) FROM sysadmin:llog      
WHERE sysmaster:bitval(flags,'0x02')==1;
   
DROP TABLE sysadmin:llog;      
END

This is useful if you want to keep your instance layout for recovery purposes or if you want to recreate a similar instance layout on your test or quality environments.
Just one thing to note. The generated instructions include the statements to create the root dbspace. And as we know, this is created during instance initialization. That chunk instruction should be removed from the scripts but it's important for documentation purposes.

Versão Portuguesa:

Desta vez vou abordar uma pequena mas útil melhoria no utilitário dbschema. dbschema é a forma mais rápida de extrair instruções DDL sobre as nossas bases de dados e tabelas. Podemos obter o esquema completo da base de dados ou apenas de uma tabela, view, sinónimo etc. Pode também fornecer todos os privilégios dos objectos na base de dados.

A versão 11.7 (Panther) introduz uma extensão a esta ferramenta. Podemos agora obter a seguinte informação ao nível da instância:

Espaço alocado (dbspaces, chunks...)
Localização e tamanho do physical log
Localização e tamanho dos logical logs

Esta informação já estava disponível facilmente quer como resultado da execução do comando onstat ou através de queries na base de dados sysmaster. Mas depois tinham de ser criados os comandos para alocar/definir os referidos objectos. Note-se ainda que isto poderia ser feito através de utilitários na shell (utilitário onspaces) ou (desde a versão 11.10) através da SQL Admin API.

Agora, na versão 11.7, podemos obter esta informação num formato "pronto a usar" correndo o utilitário dbschema com a opção "-c". Por pré-definição irá gerar as instruções SQL que pode usar através da SQL Admin API. Mas pode também usar a opção "-ns" (no SQL) para que seja gerada a sintaxe utilizando os utilitários a correr no sistema operativo. Vejamos um exemplo de cada. Irei cortar o output para que não se torne demasiado longo.


panther@pacman.onlinedomus.net:fnunes-> dbschema -c -q

--  Dbspace 1 -- Chunk 1
--  EXECUTE FUNCTION TASK
('create dbspace', 'rootdbs', 'rootdbs.c1', '250000', '0', '2', '500', '500');

--  Dbspace 2 -- Chunk 2
EXECUTE FUNCTION TASK
('create tempdbspace', 'dbtemp1', 'dbtemp1.c1', '100000', '0', '2', '100', '100');

--  Dbspace 3 -- Chunk 3
EXECUTE FUNCTION TASK
('create sbspace', 'sbs1', 'sbs1.c1', '20000', '0');

--  Dbspace 4 -- Chunk 4
EXECUTE FUNCTION TASK
('create dbspace', 'dbs1', 'dbs1.c1', '250000', '0', '2', '100', '200');

--  Physical Log
EXECUTE FUNCTION TASK
('alter plog', 'rootdbs', '50000');

--  Store pre-existing logical logs information before create new logical logs    
DATABASE sysadmin;    
CREATE TABLE llog (log smallint, flags  smallint);    
INSERT INTO llog SELECT number, flags FROM sysmaster:syslogfil;

--  Logical Log 1
EXECUTE FUNCTION TASK
('add log', 'rootdbs', '10000');

--  Logical Log 2
EXECUTE FUNCTION TASK
('add log', 'rootdbs', '10000');

-- [ CUTTED TEXT.... ]
-- [... more logical logs here... ]

--  Logical Log 10
EXECUTE FUNCTION TASK
('add log', 'rootdbs', '10000');

--  Drop all pre-existing logical logs     
EXECUTE FUNCTION TASK
('checkpoint');

SELECT TASK ('drop log', log) FROM sysadmin:llog    
WHERE sysmaster:bitval(flags,'0x02')==0;

EXECUTE FUNCTION TASK
('checkpoint');

SELECT TASK('onmode', 'l') FROM sysmaster:syslogfil    
WHERE chunk = 1 AND sysmaster:bitval(flags,'0x02')>0;

EXECUTE FUNCTION TASK
('checkpoint');

SELECT TASK ('drop log', log) FROM sysadmin:llog    
WHERE sysmaster:bitval(flags,'0x02')==1;

DROP TABLE sysadmin:llog;

E agora usando a opção -ns:


panther@pacman.onlinedomus.net:fnunes-> dbschema -c -q -ns
# Dbspace 1 -- Chunk 1
# onspaces -c -d rootdbs -k 2 -p rootdbs.c1 -o 0 -s 250000 -ef 500 -en 500

# Dbspace 2 -- Chunk 2
onspaces -c -d dbtemp1 -k 2 -t -p dbtemp1.c1 -o 0 -s 100000

# Dbspace 3 -- Chunk 3
onspaces -c -S sbs1 -p sbs1.c1 -o 0 -s 20000 -Ms 348

# Dbspace 4 -- Chunk 4
onspaces -c -d dbs1 -k 2 -p dbs1.c1 -o 0 -s 250000 -ef 100 -en 200

# Physical Log
onparams -p -s 50000 -d rootdbs -y

# Store pre-existing logical logs information before create new logical logs      
dbaccess sysadmin << END      
CREATE TABLE llog (log smallint, flags  smallint);      
INSERT INTO llog SELECT number, flags FROM sysmaster:syslogfil;      
END

# Logical Log 1
onparams -a -d rootdbs -s 10000

# Logical Log 2
onparams -a -d rootdbs -s 10000

## CUTTED TEXT HERE
## ... More logical logs...

# Logical Log 10
onparams -a -d rootdbs -s 10000

# Drop all pre-existing logical logs       
onmode -c
   
dbaccess sysadmin << END      
SELECT TASK ('drop log', log) FROM sysadmin:llog      
WHERE sysmaster:bitval(flags,'0x02')==0;      
END
   
onmode -c
   
dbaccess sysadmin << END      
SELECT TASK('onmode', 'l') FROM sysmaster:syslogfil      
WHERE chunk = 1 AND sysmaster:bitval(flags,'0x02')>0;      
END
   
onmode -c
   
dbaccess sysadmin << END      
SELECT TASK ('drop log', log) FROM sysadmin:llog      
WHERE sysmaster:bitval(flags,'0x02')==1;
   
DROP TABLE sysadmin:llog;      
END

Isto é útil se quiser manter um "esqueleto" da sua instância para propósitos de recuperação ou se quiser recriar uma estrutura semelhante nas suas instâncias de teste ou qualidade.
Há que notar um detalhe. As instruções geradas incluém código para criar o root dbspace. E como nós sabemos, este é criado durante a inicialização da instância. Assim, a instrução referente a esse chunk deverá ser removida dos scripts. No entanto a sua existência é importante para efeitos de documentação.

Monday, November 1, 2010

iPevo 2 USB Document Camera Just Got A lot Better

I know it might seem like a little thing, but not having a carrying case for my IPEVO Point 2 View USB Document Camera at times really got in the way of carrying it with me. Since I have been using the IPEVO Point 2 View Document Camera I have kept it in the original box was somewhat bulky and would stick it in my duffel bag. when doing presentations. I have to be honest there were times that I decided not to take it because it was too bulky to carry in the original packaging. However, that all changed today when I received my IPEVO Point 2 View Document Camera Carrying Case specifically designed for the camera. The carrying case secures all of the cables and the stand and makes it an elegant portable solution which is easy to carry and store the camera. If you own the IPEVO Point 2 View USB Document Camera this is essential. I know that once you have the IPEVO Point 2 View Document Camera Carrying Case that you will be more inclined to take it with you when you are on the road and making presentations.