AbstractFPGA stands for Field Programmable Gate Array. It is an integrated circuit that can be configured by the user in order to implement digital logic functions of varying complexities. This report concerns FPGAs (Field Programmable Gate Arrays). The basic FPGA blocks, I/O, CLBs (Combinational Logic Blocks), and architecture, the advantages of FPGAs are discussed to impart a basic understanding of FPGA operation. Digital signal processing is an important area where FPGAs have found many applications in recent years. Interest in high-level synthesis tools for FPGAs is intensifying as FPGAs and their applications grow larger and more complex. Prospective users want to understand how well high-level synthesis tools work, both in terms of usability and quality of results. To meet this need, I have prepared this paper that presents a brief introduction to the FPGA.