Why can't my computer press three keys at the same time?
Do you want to "lock the keyboard"
On some keyboards, when some keys are pressed at the same time, others will lose their functions. It has caused great inconvenience to users who need to play games with the keyboard. For example, if you press left and down at the same time in a football match, there will be no response, so you should pay attention to the test when buying.
As the most classic input device, keyboard is one of the indispensable components of computer. Many players don't seem to pay enough attention when buying keyboards. The typical attitude towards it is "whatever, just use it." In fact, if the quality of the keyboard is not good enough, the trouble and inconvenience is the most direct and painful. Lightly, it will hinder the typing speed, while severely, it will cause wrist and knuckle damage. Therefore, we should also be selective about keyboards, and try to choose products of well-known brands. As for some subtle parts, we usually don't pay much attention to them. According to some methods and principles elaborated by the author below, we can take a closer look at whether your keyboard should be changed.
Key position layout
The layout of PC keyboards and keys from different manufacturers is sometimes not exactly the same. At present, the standard keyboards mainly include 104 and 107, and 104 keyboard is also called Win 95 keyboard. 107 keyboard, also known as Win 98 keyboard, has more power management keys such as sleep, wake-up and start-up than 104 key. Most 107 keys have three extra keys in the upper right corner. For people who are not used to it, it may be inconvenient for some people to replace the original key position with the extra three keys. Generally speaking, the key 104 is enough (this cannot be generalized according to everyone's habits). The layout of the key, backspace, enter and window function keys of a standard keyboard is different. Some "Enter" keys are big and some are small. Some "\" keys are above the Enter key, while others are below the Enter key. Many people are used to a certain key position, but they don't pay attention when buying a new keyboard. As a result, they bought different keyboard keys, and they had to admit that they were unlucky when they came back. Therefore, when buying, they should pay attention to buying keyboards that conform to their habits. At present, many keyboards have many shortcut keys. These shortcut keys can start some programs through drivers. This kind of keyboard is usually called multimedia keyboard. If you need this function, you can consider buying it. I believe these functions will bring great convenience to your daily application.
Keyboard work
As a DIYer, the quality of workmanship is the main object of investigation in procurement. For the keyboard, we should pay attention to the texture of the keyboard material, whether there are burrs, abnormal protrusions and burrs, whether the color is uniform, whether the keys on the keyboard are neat and reasonable, and whether they are loose. No matter whether the key cap printing is clear or not, a good keyboard uses laser to etch the key cap text, so that the keyboard text is clear and not easy to fade. Also pay attention to the bottom plate material and the nameplate identification on the back. Some high-quality keyboards also adopt the drainage groove technology to reduce the possibility of water damage.
Operating sensation
The feel of keyboard keys is the most intuitive experience for users, and it is also the main criterion for whether the keyboard is "easy to use". The structure of keys can be divided into two types: mechanical and capacitive. The buttons of these two structures feel different, so you should choose them according to your own habits. A good keyboard key should be smooth, soft, moderately elastic and sensitive. Don't shake the key horizontally, and bounce up immediately after releasing it. A good mute keyboard should be almost silent when pressed and bounced.
Comfort level
The ergonomic keyboard invented by Microsoft divides the keyboard into two parts, and the two parts are at a certain angle to adapt to the angle of the human hand, so that the input does not need to bend the wrist. There is also a wrist rest, which can hold the wrist up and prevent it from bending up and down. This kind of keyboard is mainly suitable for users who need a lot of keyboard input, and the price is high, which requires users to adopt correct fingering, and consumers should choose according to their own situation. Now many standard keyboards also add a wrist tray, which can also protect the wrist to some extent. These keyboards also often call themselves ergonomic keyboards. Pay attention to the difference.
interface type
AT present, there are three common keyboard interfaces on the market: old AT interface? Commonly known as big mouth, PS/2 interface? Commonly known as small mouth and USB interface. Pay attention to the type of keyboard interface supported by your motherboard when purchasing.
Do you want to "lock the keyboard"
On some keyboards, when some keys are pressed at the same time, others will lose their functions. It has caused great inconvenience to users who need to play games with the keyboard. For example, if you press left and down at the same time in a football match, there will be no response, so you should pay attention to the test when buying.
Next, the author will give a few examples to introduce several mainstream products: at present, the brands in DIY market, such as Acer, Samsung, Philips and Patriot, are very popular with everyone.
Patriot ergonomic keyboard
Let's take a look at the Huaqi Patriot ergonomic keyboard for the mid-market first. The retail price of this keyboard in the market is around 100 yuan, which is more expensive than some keyboards with tens of dollars. Let's see what's extraordinary about it.
Speaking of this keyboard, it can be seen from the appearance that it is an ergonomic keyboard. It adopts the ergonomic keyboard design first proposed by Microsoft. The whole keyboard is very wide and its shape is very different from that of a conventional keyboard. This keyboard is bounded by the left and right index finger control keys in the standard fingering, and is separated to both sides in the horizontal direction 15 to form a figure of eight. Three standard keyboard status indicators are arranged vertically in the space divided left and right. In the vertical direction, the function keys transition to the direction of the space bar, forming a natural 8-character smooth slope. Its space bar is crescent-shaped with radian. This shape only allows us to put our hands on the keyboard according to the natural shape, instead of moving our hands closer to the middle like a normal keyboard. At the same time, the keyboard also has a large wrist rest, which gives strong support to the wrist during typing and protects the wrist joint.
When you first see this keyboard, you may find it difficult to use. Don't be blinded by your own vision and subjective judgment. Sit down and put your hand on the table to interview a few words, and you will find its beauty immediately. Because the left and right hands don't need to approach (this approach is not easy to detect when using a normal keyboard, but it will easily bring fatigue after a long time), so your hands can always input in a relaxed state. When you use this keyboard for a while, and then use the traditional keyboard, you will be surprised at how you can restrain your hands so much.
Philips
Philips keyboard is a very classic keyboard brand, and the Philips suite many years ago is still fresh in my memory. Today, this 104 keyboard also provides a wrist rest with a classic appearance. It still has a life span of 20 million strokes, so don't worry about its sudden damage. Its surface is waterproof and dustproof, and it can also prevent static electricity and magnetic field interference. Feel moderate, slightly hard, suitable for people who don't like "soft" keyboards.
Acer computer company
Acer's 52V ultra-thin keyboard comes standard with 104 keyboard. The service life is 6.5438+million strokes. Adopt high-strength thin steel plate back cover. It is a classic low-end keyboard with low price and hard touch. Truly popular products, because of their low price and good quality, are used by the majority of primary users and have a large market share.
Acer 52M waterproof and dustproof 104 keyboard, the price is slightly higher than 52V. Its anti-fatigue design keycap adopts a small cambered surface design from front row to back row, which makes it more convenient and labor-saving for users to move their fingers on the keyboard, and it is not easy to feel tired even after long-term use. With a small enter key, 20 million strokes. Due to the price factor, Acer's 52M is not as popular as 52V, which is still a good choice for office workers.
Orion belt
Due to the price reduction just now, the price of Samsung 104 keyboard is almost the same as that of ordinary 104 keyboard, but it provides wrist rest and a waterproof, dustproof and pollution-proof protective film. It gives people a sense of value. The life of 20 million strokes is favored by everyone. It's just an ordinary appearance, and the square head and brain feel moderately softer than Acer. Note that this keyboard uses the big enter key. But judging from its price, the author feels that this is one of the products with high cost performance at present.