A blackboard (also known as a Chalkboard) is a reusable writing surface on which text or drawings are made with sticks of calcium sulphate or calcium carbonate, known, when used for this purpose, as chalk. Blackboards were originally made of smooth, thin sheets of black or dark grey slate stone. Wooden Chalkboard,Wooden Blackboard,Wooden Sandwich Board,Chalkboard Sign Jinan Tri-Tiger Technology Development Co., Ltd , https://www.tigerwoodproduct.com
Analyst Analysys think tank released "China's third-party payment market quarterly monitoring report for the first quarter of 2015" data shows that in the first quarter of 2015, China's third-party payment market mobile payment transactions reached 289.2 billion yuan, a growth rate of 5.18%. . The analysis believes that after the establishment of mobile payment scenarios and user habits by third-party payment vendors in the past two years, consumer user stickiness has taken initial shape, making the transaction scale of mobile payment climb again.
Recently, Fujian Shida Computer Equipment Co., Ltd., which has been working in the field of electronic payment for more than 20 years, understands the needs of both consumers and merchants. Its new generation of handheld mobile payment terminal, Shida S-980, can be used for one machine. Multi-purpose - This product can not only support the traditional bank card (magnetic card / IC card / contactless card) acceptance function, but also extend the one-dimensional code acceptance function and two-dimensional code reading function, which means that it can accept new payment such as Alipay and WeChat. The way, won the praise of the majority of merchants and consumers. 
At the first sight of the STAR S-980 POS machine, it gives a simple and intuitive visual impression. The black and gray color scheme, the industrial design of the fuselage is simple, and the most eye-catching is the 3.5-inch large LCD screen. 320*480 pixels, TFT LCD, support color bitmap display resistance screen touch LCD, support color bitmap display resistance screen touch, support electronic signature. After the cardholder swipes the card and enters the password, he can sign directly on the large display.
Compared with the traditional paper-based signing method used by traditional POS machines, electronic signatures are more concerned: electronic signatures are easier to save; cardholders avoid signatures being tampered with; merchants save a lot of paper receipt costs; POS acquiring services and businesses The reconciliation between the two can be handled by electronic order comparison, and the efficiency and quality of the POS machine receiving service is greatly improved.
Full security certification escort "Jane" payment
At the same time, STAR S-980 POS has passed EMV L1&L2 certification, PBOC 3.0 L1 (contact/contactless IC card) certification, PBOC 3.0 L2 loan and credit certification; PBOC 3.0 L2 micropayment certification, CCC national compulsory product certification , IC card reader production license, and has a built-in password keyboard PIN input device security certificate. Shida Electronic Payment's self-requirement for security is not to be missed.
A blackboard can simply be a board painted with a dark matte paint (usually black, occasionally dark green).Matte black plastic sign material (known as closed-cell PVC foamboard) is also used to create custom chalkboard art.Blackboards on an A-frame are used by restaurants and bars to advertise daily specials.
A more modern variation consists of a coiled sheet of plastic drawn across two parallel rollers, which can be scrolled to create additional writing space while saving what has been written. The highest grade blackboards are made of a rougher version porcelain enamelled steel (black, green, blue or sometimes other colours). Porcelain is very hard wearing, and blackboards made of porcelain usually last 10–20 years in intensive use.
Lecture theatres may contain a number of blackboards in a grid arrangement.The lecturer then moves boards into reach for writing and then moves them out of reach, allowing a large amount of material to be shown simultaneously.
The chalk marks can be easily wiped off with a damp cloth, a sponge or a special blackboard eraser usually consisting of a block of wood covered by a felt pad. However, chalk marks made on some types of wet blackboard can be difficult to remove. Blackboard manufacturers often advise that a new or newly resurfaced blackboard be completely covered using the side of a stick of chalk and then that chalk brushed off as normal to prepare it for use.
After the big households such as Tencent and Alibaba burned their money and cultivated their habits, the revolution to eliminate cash became more and more fierce. From going out to the car, eating in restaurants, supermarkets, supermarkets, hotel rooms, online shopping and payment, all the links can be swiped/mobile. The payment is completed... One card/one mobile phone is getting closer and closer in the world.
3.5-inch large-screen electronic signature is more "simplified"
In addition to accepting card payments, STAR S-980 POS machines also support new electronic payments such as Alipay/WeChat, so this product is particularly cautious about payment security.
In order to standardize the security and standardization of POS and mPOS, China UnionPay issued the "General Technical Security Requirements for China UnionPay Bank Card Acceptance Terminals". The production standard of POS/mPOS machine is based on the safety certification of the original PIN input device, superimposing the targeted hardware safety detection items, and setting up the most stringent safety detection and protection for the safety of traditional POS machines and mobile payment. The STAR S-980 mobile POS machine has a built-in financial-grade security chip that fully complies with the UnionPay standard.
This is a "simplified" revolution: let consumers go out and pay easily. All the current status and data show that merchants need to set up a “simple†collection environment, and the help of electronic payment brand manufacturers such as Shida will surely advance the revolution.