User manual

CHAPTER 2
LITERATURE REVIEW
2.1 INTRODUCTION
This chapter brief in detail about the tools used and rough overview about this
project. From this chapter, the features of the all the device and software include in
this system are covered. There will be two parts; part 1 is about the background of
this project, while part 2 is about previous study that related to the proposed topic.
2.2 BACKGROUND
2.2.1 COUNTER
A counter that can change its state in either direction, under control of an up–
down selector input, is known as an up–down counter. The circuit can count numbers