Foram encontradas 704 questões.
2484461
Ano: 2014
Disciplina: TI - Organização e Arquitetura dos Computadores
Banca: IF-SUL
Orgão: IF-SUL
Disciplina: TI - Organização e Arquitetura dos Computadores
Banca: IF-SUL
Orgão: IF-SUL
Para responder à questão, considere que as instruções executam tendo como saída um único registrador (acumulador).
Os sistemas de computação são projetados para operar fazendo uso de diversos modos de endereçamento, como: imediato, direto e indireto.
| Endereço | Conteúdo |
| Dados: | |
| 140 | 160 |
| 150 | 170 |
| 160 | 180 |
| 170 | 190 |
| texto: | |
| 1610 | LOAD IMMEDIATE 140 |
| 1620 | LOAD DIRECT 140 |
| 1630 | LOAD INDIRECT 140 |
| 1640 | LOAD IMMEDIATE 150 |
| 1650 | LOAD DIRECT 150 |
| 1660 | LOAD INDIRECT 150 |
Considerando a tabela ao lado, na qual são apresentados endereços de memória e seus respectivos conteúdos (dado ou instrução), indique a sequência de valores que serão gerados quando da execução das instruções contidas na tabela.
Provas
Questão presente nas seguintes provas
Elige la opción cuyas preposiciones completan, correcta y respectivamente, cada hueco del enunciado “Hace mucho que no paseamos pie o caballo. Hay un hotel muy bueno en Tranqueras, a una hora y media de Santana do Livramento. Incluso, podríamos viajar Tranqueras tren y coger un taxi la Posada Lunarejo.
Provas
Questão presente nas seguintes provas
Montanha chinesa (pintura subungueal), 1995-1996
ALBERNAZ ACOSTA, Daniel. montanha chinesa (pintura subungueal), 1995-1996. São Paulo:
Editora da Universidade de São Paulo, 1997, p. 115.
A metafunção responsável pela formação de um todo coerente entre os participantes internos do texto é
Provas
Questão presente nas seguintes provas
Analise a instrução seguinte:
Considere as afirmações
I. Se for utilizado somente o parâmetro “candidato” com o comando setcookie, o servidor tentará excluir este cookie do computador do usuário.
II. O cookie definido é válido por 2 dias, a partir da data de sua criação.
III. O cookie definido só poderá ser utilizado com conexão segura (HTTPS).
Est(á)ão correta(s) apenas a(s) afirmativa(s)
Provas
Questão presente nas seguintes provas
Online students can't help being sociable
By Sean CoughlanBBC News education correspondent
Online university students want to talk outside the computer screen
It was a revolution moving higher education from bricks to clicks… and now it's started to go back to bricks again.
Online university providers, which offered people the chance to study from home, are turning full circle by creating a network of learning centres where students can meet and study together.
Instead of demolishing the dusty old classrooms, the online university revolution is responsible for opening some new ones.
Coursera, a major California-based provider of online courses, is creating an international network of "learning hubs", where students can follow these virtual courses in real-life, bricks and mortar settings.
And there are thousands of meet-ups in cafes and libraries where students get together to talk about their online courses.
This is the latest stage in the rapid evolution of so-called Moocs - massive open online courses - where some of the world's leading universities have created digital versions of courses which are offered free over the internet.
Learning together
Coursera now has seven million registered users. That's bigger than the entire university populations of the UK and France combined. But it seems there is an irresistible social side to learning. Finding stuff out together seems to be more appealing than following a course alone.
The Coursera learning hubs are running in more than 30 cities, from Baghdad to Buenos Aires, Moscow to Mumbai and Shanghai to Santiago. The learning hubs are run by partner organisations, providing a place where students following Coursera online courses can come to study together and get help from mentors.
In Moscow, the learning hub is hosted by Digital October, a centre for technology and entrepreneurship. Yulia Lesnikova, director of educational programs, says it provides a more sociable way of following online courses.
'Like a village'
There have been four online courses so far followed in the Moscow learning hub. This includes a course about genetics created by the University of British Columbia, with students in Moscow being supported by an expert from one of Russia's oldest genetics institutes.
There is a course on gamification from the University of Pennsylvania's Wharton School of Business, with sub-titles in Russian.
Students following an online course at the Digital October learning hub in Moscow
When students are gathered for their Mooc classes it becomes a focus for other spin-offs, such as firms wanting to recruit staff or to get students involved in developing commercial projects.
In Beijing, the learning hub has been set up with Guokr, a Chinese science-based social networking website.
Yang Liu, Guokr's education director, says studying as a group provides a way of keeping students connected. It's also introduced the word "Moocer" into China, she says.
"Learning can be very lonely, they can drop out."
It can be a more effective way of studying, she says. In a group of people there's likely to be a spread of knowledge, with students able to help one another.
"It's like a village, they form a small society."
It also allows for different types of learner to be supported. About half of the people following Coursera courses in Beijing are university students, she says.
Cutting drop-out rates
But there are also isolated individuals who like the social setting, such as older people living alone or mothers looking after children at home.
Yin Lu, responsible for Coursera's international development, says learning hubs have a wide range of local approaches. They can be based around tutors or around organised projects or else emphasise the social aspect of learning.
In India, the focus is on teacher training and professional development. It means that courses designed for students in the US or Europe are being played out in classrooms in New Delhi and Mumbai.
What has become apparent, she says, is that there is a much lower drop-out rate for students who attend a learning hub.
Moocs allow anyone to enter, with no barriers from cost or qualifications, but that also means relatively few ever finish a course. Ms Lu says that the typical completion rate for a Mooc is about 5% to 10%.
Practical projects are run alongside the online courses
For Mooc students attending learning hubs, the completion rates are between 30% and 100%, she says.
Ms Lu says it's likely that more hubs will open where there are concentrations of Coursera students.
But she says there are no plans for these learning hubs to become fully-fledged colleges, where students might take exams as well as follow courses.
"We exist to complement what universities can provide," she says. But it wouldn't be difficult to imagine the commercial possibilities if they changed their mind.
'Meet-ups'
There is something almost organic about how these digital projects have taken root in the physical world.
Moocs were meant to be the university courses of the laptop era, self-sustaining and free-standing, with students able to stop and start materials on the internet and get online support from social networking.
But you can't stop people from wanting to talk to each other, outside the computer screen.
As well as the more formal learning hubs, self-organised "meet-ups" for Coursera students have sprung up in more than 3,700 cities around the world, based around specific Coursera online courses.
For example, in London there are groups meeting in cafes at the British Library and the South Bank Centre. In Paris, there are meetings in the Pompidou Centre and in university buildings.
Meet-ups are held in a whole range of public places, where students want to discuss and debate these digital courses.
They're scheduled and arranged online, with the only vital ingredients being a laptop, wi-fi and somewhere to talk.
Even virtual students want to have a cup of coffee and a conversation after a lecture.
Available at: <http://www.bbc.com/news/business-26925463>
consulted on Apr. 12th. 2014.
When several adjectives come before a noun, they usually have to be put in a particular order. Examples from the text include “Online University providers ”, “Massive open online courses ”, among others. From the alternatives below, the one which presents a correct sequence of adjectives in the expression is
Provas
Questão presente nas seguintes provas
Um capacitor esférico constituído por uma esfera maciça de raio R1 =a e uma casca esférica de raio R2 = 2a (figura ao lado) possui uma capacitância C. Com a intenção de alterar a capacitância do capacitor, substitui-se a casca esférica por outra de raio igual ao dobro do raio da primeira. A nova capacitância do capacitor será
Provas
Questão presente nas seguintes provas
Studenten brauchen mehr Geld zum Leben
Nicht alle Studenten können in Deutschland von ihren Eltern finanziell unterstützt werden. In diesem Fall ist es möglich, dass sie Hilfe beim Staat beantragen – im Rahmen des so genannten Bundesausbildungsförderungsgesetzes, kurz BAföG. Dadurch sollen auch junge Menschen studieren oder eine Ausbildung machen können, deren Eltern nicht viel Geld haben.
Im Jahr 2012 gab der deutsche Staat über drei Milliarden Euro für BAföG aus – so viel wie noch nie zuvor. Doch die Zahl der Studierenden hat sich in den letzten Jahren deutlich erhöht, und damit ist auch die Anzahl der BAföG-Anträge gestiegen. Etwa 8.000 muss zum Beispiel das Bonner Studentenwerk jedes Jahr bewältigen – und darüber entscheiden, wer überhaupt einen Anspruch auf staatliche Förderung hat. Die Zunahme der Anträge hat dazu geführt, dass viele davon abgelehnt werden müssen. Durchschnittlich bekommt jeder BAFöG-Empfänger in Deutschland 448 Euro im Monat, der Höchstsatz liegt bei 670 Euro. In teuren Städten, in denen ein Zimmer 400 Euro kosten kann, reicht dies für viele nicht zum Leben. Die Studenten müssen deshalb neben dem Studium arbeiten gehen. Und das kostet Zeit. Dadurch besteht die Gefahr, dass sie länger für das Studium brauchen. Das Problem ist dann: Wer die Regelstudienzeit überschreitet, verliert seinen Anspruch auf BAföG. Laut einer Sozialerhebung des Deutschen Studentenwerks braucht ein Student 570 bis 1.100 Euro im Monat. Das Studentenwerk fordert daher Anfang 2014, dass die BAföG-Beträge um 7,5 Prozent erhöht werden müssen. Noch sind sich die deutschen Politiker aber nicht darüber einig, wie stark die BAföG-Sätze angehoben werden sollen. Unklar ist auch, wer die BAföG-Reform bezahlen soll – die Bundesländer oder der Staat.
Unter: <http://www.dw.de/studenten-brauchen-mehr-geld-zum-leben/a-17478043?maca=de-
DKnewsletter_daf_de-2116-html-newsletter> Zugang: 15. Mär 2014.
„Etwa 8.000 muss zum Beispiel das Bonner Studentenwerk jedes Jahr bewältigen – und darüber entscheiden, wer überhaupt einen Anspruch auf staatliche Förderung hat.“ Der unterstrichene Teil kann durch ersetzt werden, ohne die Bedeutung des Satzes zu verändern:
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Questão presente nas seguintes provas
Dentre as inúmeras formas possíveis de edição o software de modelagem SketchUp permite o espelhamento de um objeto através da ferramenta:
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Questão presente nas seguintes provas
Considere as seguintes afirmações, de acordo com BOSI (1999), sobre a obra de José de Alencar:
I. Sob o pseudônimo Ig, o autor publicou uma série de artigos críticos sobre a Confederação dos Tamoios, de Gonçalves de Magalhães, considerando a mensagem e o código do texto insuficientes.
II. O Guarani, romance histórico que lhe conferiu notoriedade, revela traços ideológicos: no Brasil do autor, expulsos os portugueses, reinariam capitães altivos, rodeados de peões livres e fiéis.
III. O escritor que idealiza heróis míticos no seio da floresta é o mesmo que recorta as figuras gentis de donzelas e mancebos nos salões, focalizando relacionamentos ingratos entre homens e mulheres, centrados em orgulhos, susceptibilidades, ciúmes, avaliados por um padrão aristocrático de juízo moral.
IV. Em Senhora, o autor põe, no centro do romance não, mais heróis como Peri, mas um ser venal, inferior, o que lhe confere o atributo de um "narrador bastante realista".
Está(ão) corretas(s) apenas afirmativa(s)
Provas
Questão presente nas seguintes provas
Analise as afirmativas abaixo quanto à trajetórias no sistema CAM.
I. O software para cálculo da trajetória da ferramenta deverá identificar o ponto de contato da ferramenta e o ponto que representa a trajetória da ferramenta.
II. O ponto que representa a trajetória da ferramenta estará sempre tangente à superfície da peça.
III. O ponto que representa a trajetória da ferramenta deve estar dentro da tolerância da peça.
Está(ão) correta(s) apenas a(s) afirmativa(s)
Provas
Questão presente nas seguintes provas
Cadernos
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