1 / 16

Bits, Bytes, KiloBytes, MegaBytes, GigaBytes & TeraBytes.

Bits, Bytes, KiloBytes, MegaBytes, GigaBytes & TeraBytes. Bit. 0 or 1. Byte. Equivalent to 8 bits. KiloByte. 2 10 Bytes (approx. a thousand) K - Thousand 10 3. MegaByte. 2 20 Bytes (approx. a million) M - Million 10 6. GigaByte. 2 30 Bytes (approx. a billion) G - Billion 10 9.

zita
Télécharger la présentation

Bits, Bytes, KiloBytes, MegaBytes, GigaBytes & TeraBytes.

An Image/Link below is provided (as is) to download presentation Download Policy: Content on the Website is provided to you AS IS for your information and personal use and may not be sold / licensed / shared on other websites without getting consent from its author. Content is provided to you AS IS for your information and personal use only. Download presentation by click this link. While downloading, if for some reason you are not able to download a presentation, the publisher may have deleted the file from their server. During download, if you can't get a presentation, the file might be deleted by the publisher.

E N D

Presentation Transcript

  1. Bits, Bytes, KiloBytes, MegaBytes, GigaBytes & TeraBytes.

  2. Bit • 0 or 1

  3. Byte • Equivalent to 8 bits

  4. KiloByte • 2 10 Bytes (approx. a thousand) • K - Thousand 103

  5. MegaByte • 2 20 Bytes (approx. a million) • M - Million 106

  6. GigaByte • 2 30 Bytes (approx. a billion) • G - Billion 109

  7. TeraByte • 2 40 Bytes (approx. a trillion) • T - Trillion 1012

  8. Decimal (compare to binary) • 451 = 4*10 2 + 5*10 1 + 1*10 0 • 4037 = 4*10 3 + 0*10 2 + 3*10 1 + 7*10 0 • 52305 = 5*10 4 + 2*10 3 + 3*10 2 + 0*10 1 + 5*10 0

  9. Binary • 10011 = 1*24+ 0*23+0*22+1*21+1*20 = 16 + 0 + 0 + 2 + 1 = 19 (in base 10) • 101101 = 1*25+ 0*24+ 1*23+1*22+0*21+1*20 = 32 + 0 + 8 + 4 + 0 + 1 = 45 (in base 10) • 1101 = ?

  10. One character is represented using one byte (8 bits)

  11. ASCII • American Standard Code for Information Interchange • The ASCII character code for the letter A is 65 = 0100 0001 • The ASCII character code for the letter B is 66 = 0100 0010 etc.

  12. ASCII (continued) • The ASCII character code for a space (pressing the space bar) is 32 = 0010 0000 • The ASCII character code for the letter a is 97 = 0110 0001 • The ASCII character code for the letter b is 98 = 0110 0010 etc.

  13. Base 16 Base two - digits run from 0 to 1 Base ten - digits run from 0 to 9 Base sixteen - digits run from 0 to 15 The digits are: 0 1 2 3 4 5 6 7 8 9 A B C D E F

  14. Hexadecimal to Decimal 8 D = 8*16 1 + D*16 0 = 8*16 1 + 13*16 0 = 141 D 8 = D*16 1 + 8*16 0 = 13*16 1 + 8*16 0 = 216 3 E = 3*16 1 + E*16 0 = 3*16 1 + 14*16 0 = 62

  15. Decimal to Hexadecimal 125 in base 16 is: 7D 16*7 = 112 and 125-112 = 13. Therefore, there is a remainder of 13 (or D).

  16. Decimal to Hexadecimal 191 in base 16 is: BF 16*11 = 176 and 191-176 = 15. Therefore, there is a remainder of 15 (or F).

More Related