The book uses the 8051 microcontroller (Intel MCS-51 family). Buy a cheap development board (e.g., AT89S52 or DS89C450) and an USB programmer. You cannot learn embedded systems from paper alone.
The second edition of Raj Kamal’s Embedded Systems was designed to bridge the gap between simple microcontroller programming and the sophisticated world of real-time operating systems (RTOS) and networked embedded devices. Embedded Systems Raj Kamal Second Edition Tmh
The second edition of "Embedded Systems" by Raj Kamal is an excellent resource for: The book uses the 8051 microcontroller (Intel MCS-51 family)