As quoted from Google Books, "Word size refers to the number of bits that a microprocessor can manipulate at one time."
depends on your processor type and the workload on it.
Parallelism
The number of bits a processor can transmit at a given time is determined by its word size, which is typically expressed in bits (e.g., 32-bit, 64-bit). This word size indicates the amount of data the processor can handle in a single operation, affecting its performance and the amount of memory it can directly address. For instance, a 64-bit processor can transmit 64 bits of data simultaneously.
At 9600 baud, each baud represents one signal change per second. Since one baud corresponds to one bit, 9600 baud means 9600 bits are transmitted per second. Therefore, the time to transmit a single bit is approximately 1/9600 seconds, or about 104 microseconds. To calculate the time for a specific number of bits, simply divide the number of bits by 9600.
Word length is the number of bits that can be processed at one time.
The number of bits processed during a specific unit of time in one second is referred to as the data transfer rate or bandwidth. It is often measured in bits per second (bps) and indicates how much data can be transmitted or processed in that time frame. This measure is crucial for evaluating the performance of networks, storage devices, and other data communication systems.
In the computer networking industry the abbreviations BER mean Bit Error Rate. BER is the percentage of bits with errors collected divided by the total number of bits that have been transmitted, received or processed during a recorded time period or time frame.
Bit Interval: The time required to send one signal bit. Bit Rate: The number of bits that are conveyed or processed per unit of time. (Example: 100MB/sec)
8bit 16 bits 32 bits and 64 bits and 128 bits imply a broadside [parallel] output of that many bits of digital information on a buss output. these bits represent a word output. therefore the longest the word the more information can be processed at a time imply more bits the faster the computer or data flow.
As quoted from Google Books, "Word size refers to the number of bits that a microprocessor can manipulate at one time."
A unit of data that contains a fixed number of bytes or bits and represents the amount of data a CPU processes at one time is known as a "word." The size of a word can vary depending on the computer architecture, typically ranging from 16 to 64 bits. Words are fundamental to a CPU's operation, influencing how data is retrieved, processed, and stored in memory.
The number of bits that can be processed at one time is known as a processor's word width (but other names are also used, such as the processor's bus width).The word width varies between processor models. Early processors processed 4 bit words, then 8-bit processors became common. Today's processors tend to support 16, 32 and 64 bit words. The word width is not necessarily a power of two; some processors are designed for 24-bit words, for example.
Bit rate would be the number of bit processed per time frame, normally per second Old modems commonly worked as 4800 Baud or 9600 Baud which would be 4800 bits per second and 9600 bits per second respectively
That will depend on both the architecture and implementation of the CPU.The maximum number of bits that a CPU may process at once usually depends on its "register" size, but there are many other variables that influence and change this limit for a specific CPU. For example, a 64 bit processor may operate on 64 bits at once. Some processors may also have subprocessors that can handle even more bits at once, but those are usually not included in the processor's "bit size". As an example, Intel processors have MMX instructions that can handle up to 64 bits simultaneously, although the primary CPU is 32 bit. The largest known processor at the time of this answer operates on 128 bits at once, and there are rumors of even larger bit-processors on the horizon, although their power is largely unnecessary at this time. Some processors also have multiple parallel function units that can be running at the same time (e.g. integer units, floating point units, load/store unit) each of which processes a word of the appropriate number of bits for its data type simultaneously with all the other function units, this dramatically increases the possible number of bits processed at one time with no increase in "register" size. There have also been CPU architectures with large word sizes but some implementations of those architectures processed the bits in smaller groups to save cost (e.g. IBM System 360/30 like all System 360s had a 32 bit register size but processed it only 8 bits at once). Many early computers used serial ALU implementations, one that I know of had a 48 bit "register" size (stored in a continuously recirculating memory) but processed that only 1 bit at a time in the serial ALU (2 bits at a time when executing its square root instruction, but it still had to wait 2 bit times to get those 2 bits from the recirculating memory, so there was no speed increase).
Bandwidth
depends on your processor type and the workload on it.