Shulou(Shulou.com)06/03 Report--

The hardware composition of a computer

Peripherals: monitor, mouse and keyboard

Host: CPU processor

I. Peripherals

1. Monitor: size, resolution (1280720 / 19201080 / 3840 / 2160 (4K); view highlights (solid color desktop view); visual angle

API: HDMI;DVI;VGA

The LCD screen is divided into soft screen and hard screen.

Soft screen has va screen and CPA screen.

Is the hard screen ips; based on TFT technology, and its essence is still TFT screen?

Screen brushing rate

two。 Mouse and keyboard:

Interface: PS2 round port does not support hot swapping

USB flat port: support

Wireless transceiver

II. Mainframe

1. CPU Central processing Unit (central processing unit) Operation and Control Center

Performance parameters:

Number of cores: single core, double core, quad core.

Number of threads: four threads, eight threads.

Main frequency: 2.8ghz, 3.4ghz, 3.9ghz, 4.2ghz.

Cache: 3.0mb, 6.0.mb, 8.0mb, 20mb (L1, L2, L3).

Heat dissipation capacity

Brand:

Intel inter core i9-9900 k

AMD, floating-point computing power (graphics and image processing capabilities)

Heat dissipation module

Air cooling: safety

Water cooling and liquid cooling: good effect

2. Memory

Memory:

RAM (random access memory) readable, writeable and easy to lose what is commonly known as dual-channel technology of memory strips

Memory bar: also known as running memory, it is used to temporarily store program operation data in CPU, as well as data exchanged with external memory such as hard disk (divided into SD and ddr, now there is basically a gap in DDR)

Parameters:

Capacity: 4G / 8G / 16G

Frequency: DDR3 800MHz-2133MHz-2666mhz

ROM (read-only memory) readable and unwritable is not easy to lose; motherboard chip information

External memory (permanent save)

Hard disk: disk partition tables are MBP and GPT

Mechanical hard disk HHD

API: SATA mainstream, scic supports hot swappable

Capacity

Rotational speed

Solid state hard disk SSD

3. Motherboard

Integrate the main circuit system of the computer

Provides a series of chips and expansion slots to link other accessories

Main indicators:

Chipset: South Bridge connection peripherals (Izod O equipment, pci interface)

North Bridge Link High Speed equipment (CPU, memory)

Motherboard size: standard, compact, mini

Motherboard history: the earliest AT motherboard only supports AT power supply and cannot shut down the host automatically.

ATX motherboard supports ATX power supply and automatic shutdown.

Now the BTX motherboard

4. Video card, sound card, network card

Special equipment for processing image, audio and network data

Main indicators:

Video memory size: 1g, 2g, 4g

Video card interface: PCI_AGP_PCI-E (Discovery process) win+R: ncpa.cpl Open the network adapter control interface

5. Chassis power supply

6. Motherboard BIOS settings

Basic input/output system basic input and output system

The fixed phone is in a chip CMOS on the motherboard for power-on self-test / initialization of the computer.

UEFI (unified extensible firmware interface) unified extensible firmware interface is a standard that describes the type interface in detail.

Now it is mainly used to adjust the boot entry.

CPU virtualization, synchronization time, etc., adjust boot mode

BIOS boot mode

Divided into traditional Legacy bios and emerging UEFI bios

Generally speaking, there are two combinations of boot plus disk partition tables:

Legacy BIOS+mbp

UEFI BIOS+GPT

Legacy bios does not recognize the GPT partition table format

UEFI BIOS can recognize both MBR and GPT partitions, so both mbr and gpt disks can be used to boot the operating system under UEFI. However, due to the limitation of Microsoft, using Windows installer to install the operating system under UEFI can only install the system on GPT disk.

working principle

Legacy bios

Legacy BIOS self-test-- the hard drive boots the primary partition of MBR-- activity--\ bootmgr--\ boot\ bcd--windows\ system32\ winload. Exe

Specific view

HTTP://www.360doc.com/content/17/0828/21/39655913_682860915.shtml

Expand:

Bus: Bus is a common communication trunk that transmits information between various functional components of a computer. It is a transmission harness composed of wires. According to the type of information transmitted by the computer, the computer bus can be divided into data bus, address bus and control bus, which are used to transmit data, data address and control signals respectively.

Assignment:

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