Hardware Questions

The data bus is Bi-directional because the same bus is used for transfer of data between Micro Processor and momory of input / output devices in both the direction.

Floating gate avalanche injection MOS (FAMOS) transistor is used in each cell of EPROM.

The Quality Factor is also defined, as Q. So it is a number, which reflects the lossness of a circuit. higher the Q, the lower are the losses.

the quality factor is measurement of efficiency (or effectiveness) of a device or circuitry. In literal sense quality factor means qualitative performance of a device.

In microprocessor more op-codes, few bit handling instrucitons. But in Microcontroller. fewer op-codes, more bit handling Instruction, and also it is defined as a device that includes micro processor, memory, & input / output signal lines on a single chip.

the basic architectual difference is that microcontroller has an programmable memory while it is not the case with mivroprocessors.

An interrupt that can be turned off by the programmer is known as Maskable interrupt.

Yes, it can be used, if an accurate clock frequency  is not required. also the component cost is low compared to LC or Crystal.

The address bus is unidirectional because the address information is always given by the micro processoe  to address a memory location of an input / output devices.

Byte contains 8 combinations of bits.