What Is Central Processing Unit
What is cpu: and what cpu stand for, it stand Central Processing Unit. The speed and design of this chip largely determine the overall performance of the computer. The early PC's used a chip been know to us as the 8088 and this was followed by the 8086,80386DX,80406X,80486DX, the
Pentium pro, the Pentium 11 MMX and the Pentium chip. The 8086 machines ran at a speed of 4.77MHz why the
Pentium 11 now run as fast as 400MHZ. Apart from their raw performance improvements, modern chips have other thing that is the advantages over earlier models. For example, modern computers handle data at faster rate due to their data bus being 32 bits wide; older models only had a 16-bit bus and the earliest XT machines had only an 8-bit bus. While the older system are
no longer for sale, machines of all type and speeds are currently in used in commerce, industry and in
home. The CPU is the heart of the computer system and is a silicon microchip. Its function is to interpret and execute the required instruction.
