Micro processors

A microprocessor is a computer processor on a microchip.Needs RAM memory only but Some Microprocessors also hold their own RAM.microprocessor operations include adding, subtracting, comparing two numbers, and jumping in the instruction set.Processors currently come in 8, 16, 32 and 64 bit versions.the microprocessor is designed to get the first instruction from the Basic Input/Output System that comes with the computer.






The first microprocessor was the Intel 4004, introduced in 1971. The 4004 was not very powerful; it was primarily used to perform simple mathematical operations in a calculator called “Busicom.”

A WHILE AGO

Level 1 cache memory is memory that is included inside of the CPU itself.it is usually smaller and fasterthan level 2 cache memory.Level 2 cache memory is memory between the RAM and CPU.It is used when the level 1 cache memory is full or too small to hold all of the data.

NOW

A more recent one is the Pentium 4 Extreme Edition socket 775 processor..They look similar but do have some differences like : The number of contact points they have,Cache level 2 is directly on top of the CPU.Any cache memory outside of the CPU is cache memory 3or 4,Exept the Pentium 4 Extreme Edition socket 775 processor where cache memory 3 is directly on top of CPU.Level 1 is still faster than 2.
The photo on the bottom is the CPU chip from the outside.the photo on the top is a map of the inside of a CPU showing the different areas and what they do.
Each machine cycle consists of two beats.Each beat the control unit fetches and decodes data,which is called the "instruction cycle."At the same time the logic unit executes and stores data,which is called the"execution cycle."Common CPUs available today perform at 3Ghz or faster.
This means that a 3Ghz CPU can execute 3,000,000,000 instructions in a single second.