Historically a byte was the number of bits used to encode a single character of text in a computer and it is for this reason the basic addressable element in many computer architectures. We recommend for both browsers the version 4x or higher. A Byte Is A Sequence Of 8 Bits Enough To Represent One Alphanumeric Character Processed As A Single Unit Of Information Computer Notes Computer Basics Byte To visit the BECKHOFF Site youll need MS Internet Explorer 21 or higher or Netscape Navigator 201 or higher. . Components for Automation and Control. So byte is the basic addressable unit below which computer architecture cannot addressAnd since there doesnt probably exist computers which support. TwinCAT NT-Realtime-System Bus terminal Industrial PC.