How Were Codes Created?
Aug. 2025 · GM Kids Series 576 Boek 453 · GOS Education Inc.
E-boek
35
Bladsye
family_home
Geskik
info
Meer oor hierdie e-boek
A code is a way to protect secrets safely.
The history of codes began with the invention of writing.
Once humans could send messages through writing, they wanted to hide their contents.
They came up with different methods to make sure others could not understand the contents even if they saw it.
Especially during wars, no information was allowed to leak out.
A code is a way to protect secrets safely.
The history of codes began with the invention of writing.
Once humans could send messages through writing, they wanted to hide their contents.
They came up with different methods to make sure others could not understand the contents even if they saw it.
...
Ontdek meer
Gradeer hierdie e-boek
Sê vir ons wat jy dink.
Lees inligting
Slimfone en tablette
Installeer die Google Play Boeke-app vir Android en iPad/iPhone. Dit sinkroniseer outomaties met jou rekening en maak dit vir jou moontlik om aanlyn of vanlyn te lees waar jy ook al is.
Skootrekenaars en rekenaars
Jy kan jou rekenaar se webblaaier gebruik om na oudioboeke wat jy op Google Play gekoop het, te luister.
E-lesers en ander toestelle
Om op e-inktoestelle soos Kobo-e-lesers te lees, moet jy ’n lêer aflaai en dit na jou toestel toe oordra. Volg die gedetailleerde hulpsentrumaanwysings om die lêers na ondersteunde e-lesers toe oor te dra.
