To solve $1110 - 10011$, let us align the binary values and treat them as numbers in signed representation:

1. Convert to decimal:

   • $1110$ in binary = $14$ (positive value).
   • $10011$ in binary = $-13$ (since it is a signed binary value with a negative sign).

2. Subtract:
   $14 - (-13) = 14 + 13 = 27$.

3. Convert $27$ back to binary:
   $27$ in binary = 11011.

Thus, the result in a computer byte (using only necessary bits) is:

11011

Let me know if you'd like step-by-step details or have further questions!

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Related Questions:

1. How is signed binary subtraction performed using 2's complement?
2. What is the difference between signed and unsigned binary numbers?
3. How do you perform binary subtraction with overflow detection?
4. How do you convert a negative decimal number to its signed binary equivalent?
5. What is 2's complement representation, and why is it used in computers?

Tip: Remember, signed binary numbers often use 2's complement to represent negative values.