Color screen electronic dictionary
With rich colors and more complete functions, it has developed into a learning and entertaining type. When you are bored, you can listen to songs and play games to ease the pressure on learning.
Black and white screen electronic dictionary
Power saving, long service life, less damage to the glasses, the disadvantage is that there are fewer functions, and the damage may be more troublesome because it is not a mainstream product.
The central processing unit, equivalent to the human brain, is the core part of the whole machine, and most of the functions are performed by the CPU.
It mainly stores programs for the CPU to execute functions. The main technical parameters are capacity and power consumption. It mainly stores solidified data such as programs, dictionaries, and data. The data is not lost after power failure.
It is mainly used to temporarily store dynamic data that users want to save. Data will be lost after a power failure. The main data stored are business cards, notes, account books, personal data, savings, custom thesaurus and other content.
FLASH is a flash memory. In the case of power failure, data will not be lost, and the speed of storing data is fast.
The liquid crystal display is a window of the electronic dictionary. The external dimensions and the number of dots have a great relationship with the cost of the electronic dictionary. Dot matrix is the main indicator of LCD, it will determine how much content is displayed on each screen.
The backup device is an external storage. To make the data more secure, you can back up the data to the backup device. However, it should be noted that when the data in the backup device is restored to the electronic dictionary, the original data will be overwritten.
The keyboard is the input device of the machine and the main device for human-computer communication. It adopts the method of silicon rubber keys and carbon film contact, which has good conductivity, high contact sensitivity, and is not easily damaged.