Caso esteja em frente a um teclado de computador agora, você consegue identificar para que servem as 12 teclas enfileiradas que vão de F1 a F12?
Elas são chamadas teclas de funções rápidas e podem facilitar a rotina de quem usa tanto o sistema operacional da Microsoft, o Windows; quanto o da Apple, o Mac.
Em seu blog, a Microsoft lembra que “para os usuários com deficiências visuais ou de mobilidade, os atalhos de teclado podem ser mais fáceis do que usar a tela sensível ao toque e são uma alternativa essencial ao uso de um mouse”.
No sistema operacional da Apple, as funções especiais são marcadas por ícones exibidos nas teclas, como os que indicam o ajuste de brilho da tela ou de volume. Se pressionadas junto com a tecla função (fn), elas também podem acionar funções rápidas — o que é especialmente útil se você usa Word no Mac.
Apresentamos abaixo algumas funções úteis e que estão ao alcance dos seus dedos.
F1
No Windows, o F1 abre o menu de ajuda do programa que está sendo usado. Se pressionado ao mesmo tempo que a tecla Ctrl, ele oculta ou mostra o menu de opções do Excel e do Word. Apertando F1 + Shift (aquela tecla com a setinha pra cima), surge nesses programas o painel “mostrar formato”.
No Mac, a tecla F1, com ícone de uma pequena lâmpada, reduz o brilho da tela. No Word, ao pressionar a tecla Fn + F1, é possível desfazer a ação anterior.
F2
Se você pressionar Alt + Ctrl + F2 no Microsoft Office, imediatamente se abre a biblioteca de documentos. No Word, com Ctrl + F2, você consegue ver uma prévia da impressão do arquivo.
No sistema da Apple, o F2 aumenta o brilho da tela.

F3
A tecla F3 serve para a abrir a função de busca no explorador do Windows, Firefox e Chrome. Ao digitar, se você juntar esta tecla à de Shift, mudará a letra para maiúscula ou minúscula.
No Mac, esta tecla ativa ou desativa o chamado controle de missão, que oferece uma vista ampla de todas as janelas abertas.
Se você usa o Word no Mac, o F3 serve para copiar o conteúdo selecionado para a área de transferência.
F4
Com Alt + F4, é facil fechar uma janela.
Se você usa o sistema da Apple, o F4 ativa e desativa o Launchpad, uma ferramenta para encontrar e abrir aplicativos no Mac.
F5
Quer atualizar uma página da web ou uma pasta que você abriu? Pressione o F5. Se além disso você deseja limpar o cache (dados que estão armazenados temporariamente), pressione Ctrl + F5.
Se você estiver usando o PowerPoint e quiser iniciar a apresentação, essa também é sua tecla.
No Microsoft Office, o F5 é usado para abrir a função “Localizar e substituir“.
No sistema da Apple, ele reduz a intensidade da luz das teclas.
F6
No Word, usando Windows, a combinação Ctrl + Shift + F6 permite mudar facilmente de documento para documento.
No Mac, a tecla F6 aumenta a intensidade da luz das teclas.
F7
Se você estiver trabalhando no Word, sistema Windows, e precisar de uma verificação ortográfica e gramatical, há um atalho à mão: Alt + F7. Se estiver usando um Mac, use apenas a tecla F7.
Com Shift + F7, você também pode acessar o dicionário de sinônimos no Windows.
F8
Para habilitar o modo seguro no Windows, basta apertar F8.
Além disso, usando o Word no Mac, o F8 serve para ampliar uma seleção: por exemplo, se você seleciona uma palavra e depois o atalho, a seleção é ampliada para a frase inteira.

F9
Essa tecla permite enviar e receber e-mails em alguns aplicativos. Se você usa Windows, Ctrl + F9 é usado para inserir campos vazios.
No Mac, a combinação atualiza os campos selecionados.
F10
O F10 permite marcar elementos da janela ativa e passar a uma outra janela. Junto ao Shift, essa tecla abre aquele mesmo menu que costuma aparecer quando clicamos com o botão direito do mouse na área de trabalho, em cima de um arquivo ou pasta. O mesmo acontece se usa Mac, mas nesse caso, é preciso apertar F10 + Fn.
No PC, o Ctrl + F10 faz maximizar a janela.
F11
Rapidamente, é possível entrar no modo de tela cheia: é só apertar F11. Se estiver usando o sistema da Apple, use esta tecla para reduzir o volume do áudio.
F12
Para abrir a função “Salvar como” no Word, clique em F12. Você também pode salvar diretamente o documento apertando F12 + Shift, ou abrir um documento com F12 + Ctrl.
Juntando as três teclas de uma vez, Ctrl + Shift + F12, abrirá a função imprimir.
Com o Mac, você pode usar o F12 para aumentar o volume do áudio.
Fonte: BBC Brasil
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