I am a licensed electrical engineer who is very passionate in promoting the use of renewable energy to prevent global warming. My wife and I installed two photovoltaic systems (off-grid and grid-tie) in 2012 to reduce the CO2 footprint of our household.
I wrote my first practical program using GW BASIC in the early 90s to obtain the numeric password of a newly acquired but refurbished SL-1 Northern Telecom PABX. Basically, the program connects to the PABX via serial port, inputs a sequence of commands such as logi <CR>, and then expects a response, which is the numeric password. The program will then send a value from 0000 to 9999 until an OK response is received from the PABX, in which case, it will then stop the iteration and print the last value, which is now the cracked password or passcode, if you will.
I can hardly remember the first run of my program in which, after a few iterations, the PABX suddenly locked up! That was my first taste of system security and protection going up against me. This was circumvented easily with timing and a few SLEEP in the code.
I am also a technical writer, blogger (https://medium.com/@veneraldo) and haiku poet (won an impromptu haiku competition in Singapore in the late 90’s). I enjoy composing songs about dogs and cats using my favorite Gretsch electric guitar; one is titled “Crudwell,” about a stray cat in Malmesbury, England, who visited us on several occasions.
Recently, I joined the prestigious Philippines Guild of Watercolorists and renewed my interest in watercolor after 40+ years.
