If your a software engineer, memorizing an ASCII table (particularly the hex numbers of each character code) is definitely helpful. If for no other reason than so that you can read things that are randomly written in binary without having to consult a table.
Something not really otherwise terribly useful that nonetheless helped me keep my sanity: learn how to convert to base64 in your head. At work, we had really boring 8-hours-a-day training for a couple of weeks. To pass the time, I came up with random strings to base64 encode in my head. “Hat is 48 61 7a. The first six bits are 010010 which in base64 is an S. The next six bits would be 000110 which in base64 is G.” Etc. I’d write down the base64 strings character by character as I derived them and then check my results for errors when I got back to my desk.
Converting between hexadecimal and binary. It’s not that hard and it would’ve been useful many times, but I still haven’t memorised it
If your a software engineer, memorizing an ASCII table (particularly the hex numbers of each character code) is definitely helpful. If for no other reason than so that you can read things that are randomly written in binary without having to consult a table.
Something not really otherwise terribly useful that nonetheless helped me keep my sanity: learn how to convert to base64 in your head. At work, we had really boring 8-hours-a-day training for a couple of weeks. To pass the time, I came up with random strings to base64 encode in my head. “
Hatis48 61 7a. The first six bits are010010which in base64 is anS. The next six bits would be000110which in base64 isG.” Etc. I’d write down the base64 strings character by character as I derived them and then check my results for errors when I got back to my desk.What is there to memorize about it? The 16 binary values? What is that useful for?
When is it useful past the point of just looking it up as need be?
It’s not something you try to recite. You just do it so many times you became too good at it to look at the table.
Four bits can represent up to 15, from 0000 to 1111. Correspondingly, 0 to F in hex.
Binary from right to left is 1, 2, 4, 8.
One byte is eight bits. It takes eight digit places.
XXXX XXXX
0000 0000 to 1111 1111
00 to FF
0 to 255
I mean when would it be so necessary that it jystifies itself or the time cost to do so
It’s useful if you’re a network engineer or a web designer.
Sub netting baby!