Understanding stacks, queues, and linked lists.
Microprocessors (Intel 8085 and X-86 family), Microcontrollers (8051), and Networking Technology.
It provides an excellent head start for students planning to pursue B.E., B.Tech, or B.Sc. (CS/IT).
Visit (if active). Sometimes the author provides sample chapters or errata PDFs for free.
Introduction to advanced microprocessors.