82 lines
1.8 KiB
Plaintext
82 lines
1.8 KiB
Plaintext
| Digitaliseringens betydning for fremtidens samfunn |
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| M.R. Llave |
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+-------------------------------------------------------+
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Flowchart
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Start
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u=input("username")
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p=input("password")
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\/
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[Trykk Login] <- <- [ECHO n\Wrong password or username, try again]
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|| /\
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\/ ||
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[IF u=("present") & p=("match")] -> FALSE -> IF try <3 -> FALSE [Access Denied]
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\/
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TRUE
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\/
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[ECHO n\Welcome!]
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=========================================================
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Data representeres som binære størrelser
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Bit (0 or 1)
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Byte (8-bit represententing a sign)
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Kilobyte (1000 byte)
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Megabyte (1000 kilobyte)
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Gigabyte (1000 megabyte)
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Terabyte (1000 gigabyte)
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Pentabyte (1000 terabyte)
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Exabyte (1000 pentabyte)
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Zettabyte (1000 exabyte)
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Jottabyte (1000 zettabyte)
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etc.
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=========================================================
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Binære tall
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+-----------------------+-----------------------+
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| Desimal representasjon| Binær representasjon |
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+-----------------------+-----------------------+
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| 0 | 0 |
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| 1 | 1 |
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| 2 | 10 |
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| 3 | 11 |
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| 4 | 100 |
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| 5 | 101 |
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| 6 | 110 |
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| 7 | 111 |
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| 8 | 1000 |
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| 9 | 1001 |
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| 10 | 1010 |
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| 11 | 1011 |
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+-----------------------+-----------------------+
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Hvordan lese binære tall
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+-------------------------------+
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| 11001010 |
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+-------------------------------+
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||
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\/
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+-------------------------------+
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| 1 1 0 0 1 0 1 0 |
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| 2⁷ 2⁶ 2⁵ 2⁴ 2³ 2² 2¹ 2⁰ |
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+-------------------------------+
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=========================================================
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ASCII Code
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+-------+---------------+---------------+
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| Tegn | ASCII Code | Binært |
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+-------+---------------+---------------+
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| a | 097 | 01100001 |
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| b | 098 | 01100010 |
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| c | 099 | 01100011 |
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| d | 100 | 01100100 |
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+-------+---------------+---------------+
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