-128 to 127, in two's-complement.
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The signed integer range extends only from negative infinity to positive infinity. You have to make up your own names and symbols for whole numbers that are not included in that range.
Signed integer is any integer that carries negative sign while unsigned integer is any integer that carries positive sign
0 - 65535
From -524287 to 524288
The largest unsigned integer is 26 - 1 = 63, giving the range 0 to 63; The largest signed integer is 25 - 1 = 31, giving the range -32 to 31.