a question about numeric type

If Old computer systems only relied on 4-bit bytes instead of 8. How many values could int8 and single hold then?

Answer 1

[Walter Roberson]

The same as at present. The underlying number of bits per byte does not affect the length of an aggregate whose length is fixed. uint8 means 8 bits no matter how many bits per byte the underlying architecture has. single means IEEE 754 Floating Point single precision, which is 32 bits no matter how many bits per byte the underlying architecture has.