Basic knowledge of computer composition machine function

CPU (processor): The brain of a computer
Brand:
Intel [Performance] Core > Pentium (Pentium) > Celeron (Celeron)
AMD [Performance] Athlon (Fast dragon) > Semporn (Flash Dragon) Celeron)
Index:
Frequency
Main clock frequency = FSB x octave factor
The higher the better 3.0GHZ > 2.4GHZ
Fsb
Front-end bus
Cache
Level Three cache > level two cache > Cache level

Graphics
GPU is the core of the graphics card responsible for most of the image design work
The memory memory bit width refers to the number of bits of data that can be passed in a clock cycle, and the larger the number of bits, the greater the amount of data transferred.
Gdr5>gdr3>gdr2
The core frequency of the video card refers to the operating frequency of the core chip
Graphics Card Interface Type sub AGP and pci-express Two kinds of AGP basic elimination

Memory
Memory is faster than hard disk
When the CPU starts to work, it writes some of the commonly used information to memory,
Needs to be read from memory and not read from the hard disk

Motherboard
Mainly look at the expansion, he is the other should install the platform

COMs battery
COMs battery to power the BIOS chip to protect the information it exists

BIOS (Basic Input/outputsystem), Chinese full name basic input/output system
is a piece of ROM chip integrated on the motherboard.

Hard disk
The interface type of the hard disk
IDE, SATA, and SCSI
IDE, SATA for home computer SCSI for server
Index
Seek time: Computer takes place a seek address command, to the corresponding target data is found the time required
Cache: Hard disk data is stored in the cache, and when the CPU needs data, the cached data is then transferred into memory.
Hard disk speed: The spindle speed of hard disk motor, it is one of the important parameters to determine the speed of internal drive transmission rate.

Card
1. Encapsulation and unpacking of data
When sent, the previous layer of data is added to the header and tail to become an Ethernet frame. The Ethernet frame is stripped off the header and tail, and then sent to the previous layer
2. Link Management
Mainly CSMA/CD (Carrier sense Multiple access with collision Detection, carrier-monitored multi-access with Collision detection) protocol implementation
3. Coding and decoding

Sound
The sound control chip is the acquisition of a sound analog signal from the input device, via an analog-to-digital converter,
The acoustic signal is converted into a series of digital signals, which are sampled and stored in a computer.
When replayed, these digital signals are sent to a ADC to revert to an analog waveform, which is amplified and sent to the speaker for sound.

Other peripherals
Monitor, chassis power, keyboard mouse speaker
IDE ATA/ATAPI Controller: An IDE bus controller for the motherboard
Processor: CPU
Ports (COM and LPT): Printer interface, now basic with USB interface
Disk drives: Sub-hard drives, floppy drives, and optical drives
Universal Serial Bus: USB

Basic knowledge of computer composition machine function