What is an operating system (OS)
The emergence, use, and development of the operating system (Operating System, OS for short) is a major advancement in computer software in the past forty years. Although the operating system does not yet have a strict definition, it is generally bel
Posted at 21-07-12 by SKYSKY views(1051)
What does DDR2 mean
DDR2 (Double Data Rate 2) SDRAM is a new generation memory technology standard developed by JEDEC (Joint Electronic Equipment Engineering Committee). The biggest difference between it and the previous generation DDR memory technology standard is that
Posted at 21-07-12 by SKYSKY views(545)
What is DDR4
DDR is also known as double-rate SDRAM Dual Date Rate SDRSM. DDR SDRAM is a high-speed CMOS memory with dynamic random access. The Solid State Technology Association of JEDEC in the United States published the Double Data Rate Synchronous Dynamic Mem
Posted at 21-07-12 by SKYSKY views(420)
Basic working principle of local area network
The local area network is different from the TCP/IP protocol system used for external communication. It is a network distribution based on the traditional Ethernet (Ethernet) structure. In addition to using the TCP/IP protocol, it also involves many
Posted at 21-04-27 by SKYSKY views(894)
Bluetooth audio transmission format-AAC
Brief introduction AAC, full name Advanced audio Coding, is a file compression format specially designed for audio data. Unlike MP3, it uses a brand-new algorithm for encoding, which is more efficient and has a higher price ratio. The use of the AAC
Posted at 21-07-12 by SKYSKY views(236)
Introduction to TCP/IP protocol architecture
1. TCP/IP protocol stack Four-layer model The TCP/IP protocol follows a four-layer model concept: application layer, transport layer, interconnection layer, and network interface layer. Network interface layer: The base layer of the model is the ne
Posted at 21-04-27 by SKYSKY views(518)
SPI and ASI interface
SPI has a total of 11 useful signals, and each signal is differentiated into two signals to improve transmission anti-interference. It is transmitted by DB25 on the physical link, so the connection is many and complicated, the transmission distance i
Posted at 21-07-12 by SKYSKY views(346)
WDM technology analysis
1. What is WDM technology? In the same optical fiber, two or more optical wavelength signals transmit information through different optical channels at the same time, which is called optical wavelength division multiplexing technology, or WDM for sh
Posted at 21-07-12 by SKYSKY views(539)
Network foundation and network equipment
1. Hub: It has basically been eliminated (replaced by a switch). The main function of the hub is to regenerate, reshape, and amplify the received signal to expand the transmission distance of the network while concentrating all nodes on the node cen
Posted at 21-05-18 by SKYSKY views(272)
What is streaming technology
The traditional way of transmitting multimedia information such as audio and video over the network is to completely download it before playing it. The downloading often takes several minutes or even hours. With streaming media technology, streaming
Posted at 21-04-27 by SKYSKY views(595)
