Search results
Results from the WOW.Com Content Network
A modern consumer CPU made by Intel: An Intel Core i9-14900KF Inside a central processing unit: The integrated circuit of Intel's Xeon 3060, first manufactured in 2006. A central processing unit (CPU), also called a central processor, main processor, or just processor, is the most important processor in a given computer.
In a computer using virtual memory, accessing the location corresponding to a memory address may involve many levels. In computing, a memory address is a reference to a specific memory location in memory used by both software and hardware. [1] These addresses are fixed-length sequences of digits, typically displayed and handled as unsigned ...
The CPU is located at the top of the map at due north. The CPU is connected to the chipset via a fast bridge (the northbridge) located north of other system devices as drawn. The northbridge is connected to the rest of the chipset via a slow bridge (the southbridge) located south of other system devices as drawn.
A processor register is a quickly accessible location available to a computer's processor. [1] Registers usually consist of a small amount of fast storage , although some registers have specific hardware functions, and may be read-only or write-only.
When writing to memory, the CPU writes data from MDR to the memory location whose address is stored in MAR. MAR, which is found inside the CPU, goes either to the RAM (random-access memory) or cache. The MAR register is half of a minimal interface between a microprogram and computer storage; the other half is a MDR.
The largest possible address size, used to designate a location in memory, is typically a hardware word (here, "hardware word" means the full-sized natural word of the processor, as opposed to any other definition used). Documentation for older computers with fixed word size commonly states memory sizes in words rather than bytes or characters.
Block diagram of the Platform Controller Hub–based chipset architecture, including an Integrated Memory Controller (IMC) in the CPU An Intel DH82H81 PCH with its die exposed The Platform Controller Hub ( PCH ) is a family of Intel 's single-chip chipsets , first introduced in 2009.
Intel's Nehalem microarchitecture contains multiple AGUs behind the CPU's reservation station. The address generation unit ( AGU ), sometimes also called address computation unit ( ACU ), [ 1 ] is an execution unit inside central processing units (CPUs) that calculates addresses used by the CPU to access main memory .