Octal hadi Decimal

Badilisha nambari za octal kuwa desimali bila kujitahidi

Chombo cha kubadilisha fedha

0 characters

Enter an octal number (0-7). The '0o' prefix is optional. Choose between unsigned and signed (two's complement) interpretation.

Bits:

0

Type:

Unsigned

Uwakilishi wa Binary:

Uwakilishi wa Hexadecimal:

Kuhusu mifumo ya nambari

Mfumo wa Octal

The octal numeral system, or oct for short, is the base-8 number system, and uses the digits 0 to 7. Octal numerals can be made from binary numerals by grouping consecutive binary digits into groups of three (starting from the right).

Jedwali la Ubadilishaji wa Octal hadi Desimali

Octal Decimal Octal Decimal
0 0 4 4
1 1 5 5
2 2 6 6
3 3 7 7

Mfumo wa desimali

Mfumo wa desimali ni mfumo wa nambari wa msingi-10 ambao hutumia alama kumi tofauti: 0, 1, 2, 3, 4, 5, 6, 7, 8, na 9. Ni mfumo wa nambari unaotumiwa sana katika maisha ya kila siku.

Kikamilisho cha Mbili

Kijalizo cha mbili ni operesheni ya hisabati inayotumiwa kuwakilisha nambari hasi katika mifumo ya binary. Inatumika sana katika kompyuta kwa sababu hurahisisha shughuli za hesabu kama vile kuongeza na kutoa.

Ili kubadilisha nambari chanya kuwa mwenzake hasi katika nyongeza mbili:

  1. Badilisha nambari kuwa binary.
  2. Invert all the bits (change 0 to 1 and 1 to 0).
  3. Ongeza 1 kwa matokeo ya ubadilishaji.

Ili kubadilisha nambari ya nyongeza ya mbili hasi kuwa desimali:

  1. Geuza bits zote.
  2. Ongeza 1 kwa matokeo ya ubadilishaji.
  3. Badilisha matokeo kuwa decimal na uambishi awali kwa ishara hasi.

Mfano: 8-bit Two's Complement

Positive Number (5):

0000 0101 (binary)

Negative Number (-5):

1111 1010 (inverted bits of 5)

1111 1011 (add 1 = two's complement representation of -5)

Masafa ya 8-bit Two's Complement:

-128 (1000 0000) to 127 (0111 1111)

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