The Evolution of RAM and Processors
See the evolution of memory and processor efficiency happened since the early stages of computer technology. Just consider that in 1966 1 GB RAM would cost you only $512 billion!
A processor is the logic circuitry that responds to and processes the basic instructions that drive a computer. The four primary functions of a processor are fetch, decode, execute and write back.
The basic elements of a processor:
The arithmetic logic unit (ALU), which carries out arithmetic and logic operations on the operands in instructions.
The floating point unit (FPU), also known as a math co processor or numeric co processor, a specialized co processor that manipulates numbers more quickly than the basic microprocessor circuitry can.
Registers, which hold instructions and other data. Registers supply operands to the ALU and store the results of operations.
L1 and L2 cache memory. Their inclusion in the CPU saves time compared to having to get data from random access memory (RAM).
RAM (random access memory) is the place in a computing device where the operating system (OS), application programs and data in current use are kept so they can be quickly reached by the device’s processor. RAM is much faster to read from and write to than other kinds of storage in a computer, such as a hard disk drive (HDD), solid-state drive (SSD) or optical drive. Data remains in RAM as long as the computer is running. When the computer is turned off, RAM loses its data. When the computer is turned on again, the OS and other files are once again loaded into RAM, usually from an HDD or SSD.