ECM, EMC, CPU, ECU, Engine Computer etc. Brain Box has never been used been used by the industry. Your Jeep uses a ECU or Electronic Control Unit. You can find used ones here; http://car-part.com/ Look under engine computer. Power Train Control Module.
The byte (/ËbaÉªt/) is a unit of digital information that most commonly consists of eight bits. Historically, the byte was the number of bits used to encode a single character of text in a computer and for this reason it is the smallest addressable unit of memory in many computer architectures.The size of the byte has historically been hardware dependent and no definitive standards existed that mandated the size.NET programming languages, such as C#, define both an unsigned byte and a signed sbyte, holding values from 0 to 255, and -128 to 127, respectively. In data transmission systems, the byte is defined as a contiguous sequence of bits in a serial data stream, representing is the smallest distinguished unit of data.
A byte can also hold a string of bits that need to be used in some larger unit for application purposes (for example, the stream of bits that constitute a visual image for a program that displays images or the string of bits that constitutes the machine code of a computer program). byte is abbreviated with a B. (A bit is abbreviated with a small b.) Computer storage is usually measured in byte multiples. For example, an 820 MB hard drive holds a nominal 820 million bytes-or megabytes-of data.