I want microcontroller 8051 interview questions.

1. 8051 was developed with what technology?
The original MCS-51 family of Intel was developed using NMOS technology, but later versions, identified by a letter C in its name (for example, 80C51) used CMOS technology and consumed less power than their NMOS predecessors. This made them more suitable for devices with batteries.
2. Why is it called 8051 8-bit micro-controller?
The Intel 8051 is an 8-bit micro-controller, meaning that most of the available operations are limited to 8 bits.
3. What is the width of the data bus?
8-bit data bus
4. What is the width of the address bus?
16-bit address bus
5. List the features of the 8051 micro-controller?
• 40-pin IC.
• 128 bytes of RAM.
• 4K ROM.
• 2 timers (timer 0 and timer 1).
• 32 input / output pins.
• 1 serial port.
• 6 interruptions (including restart).
6. On-chip RAM is also called _____ memory?
Direct memory
7. What memory space of location code and data memory space begins?
In the 0x00 location for internal or external memory
8. How much chip RAM is available?
128 bytes of RAM (from 0x00 to 0x7F) and can be used to store data.