Am a computer science student in kenya.Do helb me to know the most marketable field as far as computing is concerned

Computer science is a huge field, and I think the most important aspect is to first pick what interests you. After all, it's going to be your career!

For example, suppose you're interested in web development. We can help you figure out which web dev language is the most marketable nowadays. But first you gotta let us know if you're more interested in web development, or robotics, or ... the list is endless.

thanx indeed let me first see which are my intrests because right now i like most of them,

Two major areas of interest today (and in the future) are "network security" and "large-scale distributed systems engineering", especially in the "cloud".