Prefix      Symbol  Size                               Example
    yocto       y       1 bit                              Theoretical minimum
    zepto       z       1 byte (close enough to 10 bits)   Really small APL program
    atto        a       10 chars                           nc -l 8080
    femto       f       1 line (roughly 100 chars)         netcat piped into something else
    pico        p       10 lines                           tiny python service
    nano        n       100 lines                          small python service
    micro       μ       1000 lines                         typical "smallish" service
    milli       m       10,000 lines                       about as big as "microservices" would go these days, or a small monolithic app
    centi       c       100,000 lines                      decent-sized monolithic app
    deci        d       1 million lines                    large monolitihic app
    none        n/a     10 million lines                   roughly OS-level app
    deca        da      100 million lines                  god help you beyond here
    hecto       h       1 billion lines                    
    kilo        k       10 billion lines                   
    mega        M       100 billion lines                  
    giga        G       1 trillion lines                   
    tera        T       10 trillion lines                  
    peta        P       100 trillion lines                 
    exa         E       1 quadrillion lines                
    zetta       Z       10 quadrillion lines               
    yotta       Y       100 quadrillion lines