DIRETORIA ACADÊMICA NÚCLEO DE CIÊNCIAS HUMANAS E ENGENHARIAS DISCIPLINA: INGLÊS FUNDAMENTAL - NOITE PROFESSOR: JOSÉ GERMANO DOS SANTOS PERÍODO LETIVO UNIT 4 BINARY NUMBERS

DIRETORIA ACADÊMICA NÚCLEO DE CIÊNCIAS HUMANAS E ENGENHARIAS DISCIPLINA: INGLÊS FUNDAMENTAL - NOITE PROFESSOR: JOSÉ GERMANO DOS SANTOS PERÍODO LETIVO Binary numbers are well suited for use by computers, since many electrical devices have two distinct states: on and off. They are the numbers computers themselves understand. Composed entirely of zeros and ones, they express all values in powers of two. The advantage of the binary system is that you only need two symbols (0 and 1) to express any number, no matter how big is. Since computers are basically just large groups of switches, and since these switches can only be either on or off, binary system fits in; you just define 0 as off and 1 as on and then binary numbers tell the computer which switches to throw. The table below shows some numbers written in binary and decimal form. Note that written numbers in binary requires more digits than writing numbers in decimal.

DIRETORIA ACADÊMICA NÚCLEO DE CIÊNCIAS HUMANAS E ENGENHARIAS DISCIPLINA: INGLÊS FUNDAMENTAL - NOITE PROFESSOR: JOSÉ GERMANO DOS SANTOS PERÍODO LETIVO VOCABULARY Well suited =bem adequado, apropriado State = posição, estado In power= em potência On = ligado Off = desligado To understand – understood – understood = entender Entirelly = Inteiramente To express = expressed – expressed = expressar Values = valores In power = em potência, em força; Advantage = vantagem To need – needed – neede = precisar, necessitar

DIRETORIA ACADÊMICA NÚCLEO DE CIÊNCIAS HUMANAS E ENGENHARIAS DISCIPLINA: INGLÊS FUNDAMENTAL - NOITE PROFESSOR: JOSÉ GERMANO DOS SANTOS PERÍODO LETIVO VOCABULARY No matter how bit it is = não importa o quão grande ele é Large = grande Can = Poder Only = só, somente Either......or = ou ou fit = é adeguado, apropriado, encaixado Table = mesa, tabela, quadro Below = abaixo Show = mostra, apresenta, exibi Requires = requer Since = uma vez que.

DIRETORIA ACADÊMICA NÚCLEO DE CIÊNCIAS HUMANAS E ENGENHARIAS DISCIPLINA: INGLÊS FUNDAMENTAL - NOITE PROFESSOR: JOSÉ GERMANO DOS SANTOS PERÍODO LETIVO Exercises Answer these questions according to the text. a) What the advantage of the binary system? ____________________________________________________________ b) Is it possible to express a big number using this system? ____________________________________________________________ c) Switches can only be. ____________________________________________________________ d) Binary system ____________________________________________________________

DIRETORIA ACADÊMICA NÚCLEO DE CIÊNCIAS HUMANAS E ENGENHARIAS DISCIPLINA: INGLÊS FUNDAMENTAL - NOITE PROFESSOR: JOSÉ GERMANO DOS SANTOS PERÍODO LETIVO CARDINAL NUMBERS: 0 – zero/nought 1 – ONE 8 EIGHT 15 – FIFTEEN 40 - FORTY 2 – TWO 9 – NINE 16 – SIXTEEN 50 – FIFTY 3 – THREE 10 – TEN 17 – SEVENTEEN 60 –sixty 4 – FOUR 11 – ELEVEN 18 – EIGHTEEN 70 – SEVENTY 5 - FIVE 12 – TWELVE 19 – NINETEEN 80 – EIGHTY 6 – SIX 13 - THIRTEEN 20 – TWENTY 90 – NINETY 7 – SEVEN 14 – FOURTEEN 30 – THIRTY 100 – A HUNDRED 21 – TWENTY-ONE 32 – THIRTY-THREE 44 – FORTY-FOUR 66 – SITY-SIX 77 – SEVENTY – SEVEN 88 EIGHTY-EIFHT 99 – NINETY-NINE 101 – ONE HUNDRED-ONE 200 – TWO HUNDRED

DIRETORIA ACADÊMICA NÚCLEO DE CIÊNCIAS HUMANAS E ENGENHARIAS DISCIPLINA: INGLÊS FUNDAMENTAL - NOITE PROFESSOR: JOSÉ GERMANO DOS SANTOS PERÍODO LETIVO Obs: Podemos dizer A hundred ou One hundred. a) 1,000 = A/One thousand 2,000 two thousand 9,000 nine thousand 1,000,000 One thoousand 8,000,000 eight thousand b) The double of tem is twenty. The triple of five is fifteen The quadruple of two is eight. The quintuple of tem is twenty-five c) Plus = +(mais); Devided by = (dividido por ) Minus = -(menos); Times = X(vezes) Igual to = (igual a) e.g.: 2+10=12. Two plus ten is igual to twelve 5+5 = 10. Five plus five is igual to ten 8 – 2 = 6. Eight minus two is igual to six 20 – 5 = 15. Twenty minus five is igual to fifteen. 5 x 5 = 25. Five times five is igual to twenty-five 10 x 10 = 100. Ten times ten is igual to one hundred

DIRETORIA ACADÊMICA NÚCLEO DE CIÊNCIAS HUMANAS E ENGENHARIAS DISCIPLINA: INGLÊS FUNDAMENTAL - NOITE PROFESSOR: JOSÉ GERMANO DOS SANTOS PERÍODO LETIVO Exercises Write in full. Look at the examples = 18. __________ = 35. ___________3 + 2 = 5. ___________ = 9.____________ 20 – 2 = 18 ____________5 – 3 = 2.___________ 2 x 4 = 8. ___________ 40 x 2 = 80. ____________ 4 x 2 = 8.__________ 10:2 = 5.____________ 20 = 4 = 5.______________ 9 = 3 =3.__________ PERCENTAGE 10 % - ten per cent. 18 % - eighteen per cent 100 % a/one hundred per cent Escreva por extenso o número após: 84___________________________________________________ 510 __________________________________________________ 143__________________________________________________ 25___________________________________________________