Giáo trình tổng hợp các cách sử dụng máy in laser một cách hiệu quả và tiết kiệm phần 6 ppt

- The base is ten – there are 10 different symbols, the digits 0, 1, 2,

etc...upto 9

- To represent value less than ten involves only one digit larger values need

two or more digits

 Binary system

- The base must be two, with only the digits 0 and 1 available

- To show values of two or ever require two or more binary digits

 Octal system

- Octal system has eight as its base, it uses the symbol 0, 1, 2 up to 7 only

- Two or more digits are needed for values of eight and above

 Hexadecimal system(hex)

- Hexadecimal system has sixteen as its base, it use the symbols 0, 1, 2...,9

& A, B, C, D, E, F, to stand for the “digits” ten, eleven, twelve, thirteen,

fourteen, fifteen.

Question 2. Converting from Bases To Bases?

1. Change the decimal

- Binary:

Eg. (2559) 10

2559 1

1279 1

639 1

319 1

159 1

79 1 (2559)10 = (10111111111)2

39 1

19 1

9 1

4 0

2 1

0 0

- Octal:

7690 8

49 96,1 8

10 16 120 8

40 15 8

(7690)10 = (17012)8

- Hexadecimal:

6396 16

159 399 16

156 79 24 16

2 1

0 7 11

1221 15 81 11

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