CPU term-1

3DNow!: (3D no waiting) The SIMD instruction set developed by AMD can increase the speed of floating-point and multimedia operations. The number of instructions is 21.

ALU: (Arithmetic Logic Unit) The portion of the processor that is used for calculations. It has data transfer units and branch units at the same level.

BGA: (Ball Grid Array, a spherical matrix array) A chip package, such as 82443BX.

BHT: (branch prediction table) A table of values ​​used by a processor to determine the direction of branch action.

BPU: (Branch Processing Unit) The area in the CPU that is used for branch processing.

Brach Pediction: (branch prediction) An advanced data processing method from the P5 era, the CPU to determine the direction of the program branch, faster computing speed.

CMOS: (Complementary Metal Oxide Semiconductor, Complementary Metal Oxide Semiconductor) It is a kind of special chip, the most common use is the BIOS (Basic Input/Output System) of the motherboard.

CISC: (Complex Instruction Set Computing, Complex Instruction Set Computing) Relative to RISC, its command bits are longer, so it is called a complex instruction. For example, the length of the x86 instruction is 87 bits.

COB: (Cache on board, integrated cache) Integrated cache on the processor card, usually referring to the secondary cache, for example: Pentium II

COD: (Cache on Die) Integrated cache within the processor chip, usually referring to the secondary cache, eg PGA Celeron 370

CPGA: (Ceramic Pin Grid Array) A chip package.

CPU: (Center Processing Unit) The brain of a computer system that controls and manages the operation of the entire machine and performs computing tasks.

Data Forwarding: The CPU forwards the contents of one unit's output to the other unit's input within one clock cycle.

Decode: (Instruction Decoding) Since the length of X86 instructions is inconsistent, one unit must be used to "translate" the real kernel to work according to post-translation requirements.