5 Mhz is the Maximum clock frequency in 8086.
High-end: Intel - Pentium (II, III, 4), AMD - Athlon. Low-end: Intel - Celeron, AMD - Duron. 64-bit: Intel - Itanium 2, AMD - Opteron.
The processor made of PMOS / NMOS / HMOS / HCMOS technology is called 1st / 2nd / 3rd / 4th generation processor, and it is made up of 4 / 8 / 16 / 32 bits.
Accumulator register, Temporary register, Instruction register, Stack Pointer, Program Counter are the various registers in 8085
The Micro Processor enters into Halt-State and the buses are tri-stated.