diff --git a/slides/223015b/assets/demos/ascii-table.html b/slides/223015b/assets/demos/ascii-table.html new file mode 100644 index 0000000..853affc --- /dev/null +++ b/slides/223015b/assets/demos/ascii-table.html @@ -0,0 +1,311 @@ + + + + +ASCII-Tabelle + + + +

ASCII-Tabelle (1963) · 7 Bit · 128 Zeichen

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Spalte = High-Nibble (Hex 0–7) · Zeile = Low-Nibble (Hex 0–F) · Hex oben, Dezimal unten
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+ + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + +
↓ Low
→ High		0000010001200103001140100501016011070111
0000000NULnull010DLEdata link esc1620SPspace323004840@6450P8060`9670p112
1000101SOHstart hdr111DC1XON1721!333114941A6551Q8161a9771q113
2001002STXstart txt212DC21822"343225042B6652R8262b9872r114
3001103ETXend txt313DC3XOFF1923#353335143C6753S8363c9973s115
4010004EOTend trans414DC42024$363445244D6854T8464d10074t116
5010105ENQenquiry515NAK2125%373555345E6955U8565e10175u117
6011006ACKack616SYN2226&383665446F7056V8666f10276v118
7011107BELbell 🔔717ETB2327'393775547G7157W8767g10377w119
8100008BSbackspace818CAN2428(403885648H7258X8868h10478x120
9100109HTtab ⇥919EM2529)413995749I7359Y8969i10579y121
A10100ALF↵ newline101ASUBEOF DOS262A*423A:584AJ745AZ906Aj1067Az122
B10110BVT111BESCescape272B+433B;594BK755B[916Bk1077B{123
C11000CFFform feed121CFS282C,443C<604CL765C\926Cl1087C|124
D11010DCRcarriage131DGS292D-453D=614DM775D]936Dm1097D}125
E11100ESO141ERS302E.463E>624EN785E^946En1107E~126
F11110FSI151FUS312F/473F?634FO795F_956Fo1117FDEL127
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Steuerzeichen (0–31)
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Leerzeichen (32)
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Satzzeichen
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Ziffern (48–57)
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Großbuchstaben (65–90)
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Kleinbuchstaben (97–122)
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DEL (127)
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+ Beispiel: A = Hex 41 = Dez 65 = Bin 0100 0001 + Trick: Ziffern 0–9 liegen bei 30–39 · 'A'+1='B' · Groß ↔ Klein: Bit 5 togglen +
+ + diff --git a/slides/223015b/assets/demos/byte-nibble-hex.html b/slides/223015b/assets/demos/byte-nibble-hex.html new file mode 100644 index 0000000..c7e6b58 --- /dev/null +++ b/slides/223015b/assets/demos/byte-nibble-hex.html @@ -0,0 +1,185 @@ + + + + +Byte → Nibble → Hex + + + +

1 Byte → 2 Nibble → 2 Hex-Ziffern

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Jedes Byte lässt sich sauber halbieren – und 4 Bit passen exakt auf eine Hex-Ziffer.
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1 Byte · 8 Bit · 2⁸ = 256 Werte
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+ 0100 + + 1101 +
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2 Nibble · je 4 Bit · 2⁴ = 16 Werte
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0100
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= 4 (dez)
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1101
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= 13 (dez)
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2 Hex-Ziffern · Symbole 0–F
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4
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Nibble → 1 Ziffer
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D
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13 → D
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+ 01001101 (bin)  =  4D (hex)  =  77 (dez)  =  "M" (ASCII) +
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+ 16 × 16 = 256  ·  2⁴ × 2⁴ = 2⁸  ·  Darum passt Hex so gut zu Bytes. +
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+ + + + \ No newline at end of file diff --git a/slides/223015b/assets/demos/byte-nibble-hex.png b/slides/223015b/assets/demos/byte-nibble-hex.png new file mode 100644 index 0000000..7d02f1f Binary files /dev/null and b/slides/223015b/assets/demos/byte-nibble-hex.png differ diff --git a/slides/223015b/assets/demos/hex-dec-table.html b/slides/223015b/assets/demos/hex-dec-table.html new file mode 100644 index 0000000..afcd365 --- /dev/null +++ b/slides/223015b/assets/demos/hex-dec-table.html @@ -0,0 +1,67 @@ + + + + +Hex → Dezimal + + + +

Hex → Dezimal

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Dezimalwert = (Zeile × 16) + Spalte
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×16 / +0123456789A (10)B (11)C (12)D (13)E (14)F (15)
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+ ASCII (0–127) + Non-ASCII (128–255) +
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+ Beispiel: 4D → Zeile 4 × 16 + Spalte D = 64 + 13 = 77 (= "M" in ASCII) +
+ + + + diff --git a/slides/223015b/assets/demos/hex-dec-table.png b/slides/223015b/assets/demos/hex-dec-table.png new file mode 100644 index 0000000..69bc308 Binary files /dev/null and b/slides/223015b/assets/demos/hex-dec-table.png differ