What is also a good helper for human beings?

The United States-today's 25 "greatest" products or services in the past 25 years-of course, the importance is largely directed at the American people.

In fact, ranking is not important. The key is that we should remember these inventions and thank their creators.

1, mobile phone

DynaTAC 8000x

The origin of mobile phones can be traced back to 1970s, but it is recognized that the first mobile phone in the world comes from "DynaTAC 8000x" introduced by Motorola 1983. This big guy weighs about 2 pounds (nearly 1 kg), talks for half an hour and sells for $3,995.

2. Notebook computer

Compaq portable computer

The debate about who was the first laptop has never stopped, but Compaq Portable launched by Compaq at 1982 cannot be forgotten. This is Compaq's first product and the first portable computer compatible with IBM PC in the market, which quickly made Compaq stand out. This computer weighs about 28 pounds (12.7 kg), costs about $3,000 and has sold more than 53,000 units.

3.blackberry

The representative work of Canadian company Research In Motion in 1999, which provides e-mail service and a series of practical functions, has become the first choice for business people.

4. Debit card

With a debit card, who wants to bring cash? Before 1995 Visa issued debit cards, only 2% people used this kind of things, but in just ten years, the transaction volume of debit cards has surpassed that of credit cards.

5. Caller ID

What was your first reaction when you received the call? Sure, look who's calling. This humble little service is thanks to SouthBell, the time is 1984, and the location is Orlando, USA. Before it, there was a voice mail, which was also worth remembering.

6、DVD

DVD, which was born in 1995, has become an indispensable part of people's daily entertainment. In 2006, American consumers alone spent $7.4 billion on DVD rental services, up by 65,438+00%, while VHS only spent $2,865,438+00 million, down by 74%. After many years, who will have this kind of treatment, Blu-ray or HD DVD?

7. Lithium-ion rechargeable battery

Without the lithium-ion rechargeable battery introduced by Sony at 199 1, how many AA batteries would the notebook consume? Lithium battery first appeared on a portable video recorder of Sony, and then it became popular. Now it has been flooded in various portable consumer electronic products such as notebooks, mobile phones and digital cameras. Even if there is a large-scale recycling event in 2006, we still cannot do without it.

8、iPod

After 200 1, 1 1, many people walked on the sidewalk in different ways because they were holding Apple's iPod music player. This is not the first MP3 player, but it is undoubtedly the most successful one. Up to now, the total sales volume has exceeded 654.38 billion. Similar products called "iPod killer" have emerged one after another, but none of them can shake it. It's easier to shake mountains than an iPod?

9. refuel beside the fuel tank.

After the introduction of this technology in a chain gas station in Abiri, Tennessee, refueling cars became self-service and gas stations became ATMs.

10, frozen mixed salad

Fresh Express of California, USA invented a high-tech plastic bag at 1989, and put the original frozen assorted salad into the market, bringing the freshest agricultural products to consumers all over the country, making seasonal vegetables a thing of the past.

1 1, digital camera

1986, Kodak introduced digital cameras, but only for professionals. Eight years later, Apple produced the first consumer version, but it was not until this century that digital cameras really approached ordinary people. It is estimated that the sales volume will reach 30 million this year.

12, Doppler radar

The weather forecast channel was launched as early as 1978, but it was not until 1990 Doppler radar technology brought the latest weather images to TV that the meteorologists became full of confidence.

13, flat screen TV

American radio company RCA had the idea of flat-panel TV as early as the late 1960s, but it was not until nearly 40 years later that ordinary consumers saw this product. It is estimated that in 2007, 68% of digital TVs will be flat-panel TVs.

14, electronic toll collection system

From 65438 to 0989, the toll road authorities in North Texas began to use TollTag system in Dallas, which opened the history of electronic toll collection. From then on, crossing the toll booth is no longer a headache.

15、PowerPoint

The inventor of PowerPoint was far-sighted, and 1987 was bought by Microsoft. The Windows version of 1990 was introduced and then incorporated into the Office system, which completely changed the way of public speaking. Whether it's the boss of a big enterprise or a teacher in the sixth grade of primary school, you just need to click the mouse.

16, microwave popcorn

Speaking of popcorn, I always think of the "bang" on the roadside when I was a child. For Americans, regardless of age, popcorn is a part of daily life, such as eating in a hurry, such as watching TV. Fast food has become the favorite of many people. They should thank General Mills for putting out the "second act" on 1984.

17, high-tech footwear

Nike's Air Jordan1985, Reebok's Teh Pump ...1989. New shoes full of scientific and technological elements not only put on "new clothes" for athletes and ordinary users, but also gave birth to a big market.

18, online stock trading

1994, Ameritrade company began to provide online stock trading services, and many investors abandoned expensive stock brokers after that. Maria Bartiromo of American Consumer News and Business Channel is a household name in the United States, and there are a large number of day traders-professional investors.

19, Dabosha Golf Club

199 1 year, Yili Callaway created the greatest invention of golf clubs: "Big Bertha", but perhaps you don't know that it was inspired by the cannon modeling of World War I, and then Big Bertha successively evolved into the great Bertha, the largest Bertha, the great Bertha II, the big Bertha 454 and the big Bertha 460. ...

20.contact lenses

1995, contact lenses landed in the United States, which made many people get rid of the heavy and indecent frames, but it often led to this situation: a person suddenly shouted "Don't move" and then squatted on the ground to look for it. ...

2 1, StairMaster fitness equipment

Arnold Schwarzenegger's "PumpingIron", starring as a bodybuilding champion, did not make people flock to the gym, but the appearance of 1986 turned fitness into a modern exercise method for the first time.

22, digital video recorder

1999, the first TiVo was shipped, and now it has become a verb. Like Google, its influence can be seen. At present, about 4.4 million users are watching their favorite TV programs in TiVo.

23.Purell water-free instant hand sanitizer

Something that makes bacteria tremble and makes parents happy. Gojo in Akron, Ohio.

24. Home satellite TV

Satellite TV receivers used to be huge and expensive, beyond the ability of ordinary people. It may even collapse on the roof, but DirecTV made it small and cheap in 1994, thus making the "cauldron" enter the homes of ordinary users.

25. Karaoke

Needless to say. I only remember 1983.