What is the unit of DIP in the computer?

dip dual ln-line package

The dual-in-line package, like the usual IC, has a two-row structure, which is called a DIP

In the 70s of the last century, chip packaging was basically packaged with DIP (Dual LN-Line Package), which was suitable for PCB (printed circuit board) perforated installation, wiring and operation at that time. There are various structural forms of DIP packages, including multilayer ceramic double in-line DIP, single-layer ceramic double in-line DIP, lead frame DIP, etc. However, the packaging efficiency of the DIP package form is very low, and the ratio of the chip area to the package area is 1:

In this way, the area of the packaged product is larger, the area of the memory module PCB board is fixed, the larger the packaging area, the smaller the number of chips installed on the memory, and the smaller the memory module capacity. At the same time, the large packaging area has an impact on the improvement of memory frequency, transmission rate, and electrical performance. Ideally, the ratio of the chip area to the package area is 1:

1 would be best, but this is not achievable unless it is not encapsulated, but with the development of packaging technology, this ratio is getting closer and closer, and there is now a memory encapsulation technology of 1:.

Mouse DPI (resolution) refers to the positioning accuracy of the mouse, the unit is dpi or cpi, and refers to the maximum amount of information that can be accurately positioned per inch of mouse movement. In fact, the concept of DPI is not more accurate, and it only represents the accuracy of the mouse. For example, the "dots" in dots per inch are not constant on the screen.

It is affected by factors such as resolution, so it is not the only pixel on the screen. It is possible that this point is 4 pixels, or it may be 1 pixel. That's because the concept of DPI involves changes on the display.

The new standard that is currently more scientific and accepted is to use CPI to express mouse precision. The explanation for this concept is: the number of mouse samples per inch.

To put it simply, it means that when the mouse moves one inch, the mouse itself can pick up how many points of change from the moving surface. This attribute is entirely about the performance of the mouse itself, and is no longer a matter of the display. Therefore, it can reflect the accuracy of the mouse more accurately and unchanged.

However, most mouse manufacturers have adapted to the DPI designation. Therefore, most of the current production links still continue to represent DPI indicators.

1. Dual in-line package, also known as dual in-line package technology, double in-line package, is a component package form of DRAM. Refers to the integrated circuit chip packaged in the form of double in-line, the vast majority of small and medium-sized integrated circuits use this packaging form, the number of pins generally does not exceed the package CPU chip has two rows of pins, which need to be inserted into the chip socket with DIP structure. Of course, it can also be directly inserted into a board with the same number of holes and geometrical arrangement for soldering.

Chips in DIP packages should be plugged and unplugged from the chip socket with special care to avoid damage to the pins. DIP package structure forms include: multi-layer ceramic double-in-line DIP, single-layer ceramic double-line in-line DIP, lead frame DIP (including glass-ceramic sealing type, plastic encapsulated structural formula, ceramic low-melting glass packaging type) and so on.

First, the DIP switch on the motherboard, you can understand it as a jumper that will not be lost. It has basically the same function as the jumper, but it does not lose the jumper cap, is smaller in size, more complex in combination, and more convenient to use. The status of each DIP switch is ON and OFF, you only need to follow the requirements on the manual to turn each corresponding switch to the corresponding state immediately.

2. DIP package (dual

in-line

package), also known as double in-line packaging technology, dual inlet packaging, a component packaging form of DRAM. DIP switch is widely used in computer motherboard overclocking, wireless communication, radio and television and other equipment FM code and automation equipment computer software programming and CNC equipment, instrumentation (wireless remote control, time relay, temperature controller, counter) and automatic control, preset circuit control components.

DPI is an indicator of the number of frames scanned by the mouse per second, and the higher the DPI, the faster the response. That is, moving the mouse is related to the electronic components of the mouse, mainly the mouse chip and the bald head, and the laser head can achieve higher DPI than the photoelectric one

The DPI is determined by the micro-movements of the mouse, and simply changing the micro-movements can improve the DPI.

The biggest impact is actually the light-emitting diode. Nothing messy.

The higher the power of this diode, the higher the dpi. Of course, the mouse chip also has a certain relationship.

But you don't find a lot of junk optical mice that don't even have chips. So this diode is the real factor that affects the refresh rate.

I tried it when I was repairing. The effect of the high power of the replacement is much better.

Both are encapsulated**, dip is the meaning of "double in-line plug", the abbreviation of double in-line plug. DN is another package**, please refer to the relevant chip manual.

Indicates that the padding on the bottom side of the control to which this property belongs is 30 device-independent pixels.

SIP is a text-based application-layer control protocol for creating, modifying, and releasing sessions for one or more participants. DIP can control the modem to establish a two-way connection to the outside world by dialing up IP.