Computer Architecture
Intoduction to Digital Electronics The entire field of computer technology relies on transistors. This article describes how transistors
are constructed and how modern MOSFETs are combined to make digital logic circuits. More ... The Fetch, Decode, Execute Cycle The Fetch, Decode, Execute cycle is paramount to the functioning of a microprocessor. In this article
I'll describe the Fetch, Decode, Execute cycle simplified to its barebones in a highly simplified fictitious microprocessor. More ... Microcontrollers A microcontroller is an IC that contains a microprocessor as well as RAM, ROM and general I/O ports.
Engineers design microcontrollers into specificpurpose devices such as microwave ovens, cars,
washing machines, refridgerators, and even space probes. More ... The Computer's Chipset A computers memory and peripheral ports connect through two highly integrated chips called
simply the chipset. The chipset consists of a northbridge chip and a southbridge chip. More ... Introduction to Boolean Algebra Boolean algebra is a system of mathematics in which the values of the variables can take on only one of two values,
either 0 or 1. Similar to regular algebra, Boolean algebra can be used to simplify a mathematical expression.
Since computer logic is also a system in which the values of the inputs and outputs can take on only one of two values,
Boolean algebra can be used to simplify logic circuits. More ... Capacitors in AC Circuits In an AC circuit capacitors exhibit a property similar to resistance called reactance and cause a phase shift between votage and current.
The vector sum of resistance and reactance in an AC circuit is called impedance. More ... Binary Number Representation and Binary Math Computers perform all of their amazing work with only two voltage levels, one representing binary 0,
the other representing binary 1. This article describes how to perform binary addition and subtraction. More ... Basic Arithmetic Logic Unit (ALU) Circuitry One of the primary functions performed by a computer is mathematics. This article describes
some of the logic circuits used to create the Arithmetic Logic Unit (ALU) of a microprocessor. More ... AMD's Phenom II Processor Phenom II is AMD's family of 45 nm multicore processors and is the successor to the original
Phenom. In the Phenom II, the shared L3 cache increased from 2MB to 6MB. The chip has an
integrated, dualchannel memory controller that supports DDR3 RAM, and 4000MHz HyperTransport technology. More ... AMD Sempron Processor The Sempron replaced the Duron as AMD's budget processor. The socket A Sempron is
basically an Athlon XP with half the cache. The socket 754 Sempron is a cut down
version of the Athlon 64 processor with half the cache. More ... Computer Video Display If you view a computer as an inputprocessingoutput machine, you can use a keyboard
or removable storage device as the input, a program as the processing, but what can you
use to retrieve the output? One way to acquire the output, be it text or graphics, is with a video display. More ... Intel's Core 2 Processors Intel's Core 2 processors, released in July of 2006, are based on the "Core microarchitecture",
a dual core design using a 65nm manufacturing process to put 291 million transistors
on a 143 square mm die. Each core has its own 64KB L1 cache. The two cores share an L2
cache that can be either 2MB or 4MB. More ...
