One of the most important devices used to enter information is a computer keyboard, which has its own characteristics. They need to know any PC user. Especially for beginners, just starting to familiarize themselves with electronics. The PC BIOS has special keyboard software. With its help, commands and alphanumeric data are stored in the computer processor memory.
The keyboard has a layout (Russian JTSUKEN and English QWERTY), similar to the one that typewriters are equipped with. There are several characters on each key to switch them, change the case of the keyboard, there are Alt + Shift and Ctrl + Shift keys. In addition to letters, the device has special keys that allow you to enter commands when they are combined pressed. Most often, these are Ctr, Shift, Alt, Delete. They are called service keys and are located near the keys with letters and numbers, namely, to the right and left of them.
In addition to the already mentioned keys, which has a computer keyboard, you can talk about the following. Caps Lock - for fixing capital letters, Insert - for replacing and inserting characters, Home and End are designed to move the cursor to the beginning or end of the line, and others.
As duplicating the main panel to the right of it, numeric keys are additionally placed, the Num Lock key is used to turn them on . The inclusion of an additional keyboard is indicated by the LED lit at the top. In addition, the computer keyboard allows you to launch the context menu using a special key, which acts in the same way as the right mouse button. Moreover, the context menu will correspond to the program you open. To launch the menu, which contains the Start button, the keyboard has two Windows buttons. Above, above the alphanumeric keys, the computer keyboard contains function keys; they allow you to execute commands in combination with other keys.
Having familiarized yourself with the basic functions of the keyboard, you can consider its characteristics, they must be taken into account when choosing a device in the store. If you have to work at a computer for a long time, then you need to minimize fatigue. Therefore, the keyboard should have ergonomics, ease of use. When evaluating the properties that a keyboard for a computer has, it is necessary to take into account the size of the keys, the design of the device, its tilt, and the absence of glare.
Of the varieties that electronics stores offer, wired and wireless devices can be distinguished. The latter are powered by batteries and have a USB receiver that connects directly to the computer. A radio channel is used to provide wireless communications. Such keyboards are convenient to use not only with stationary computers, but also with laptops. Wireless communication can operate at a distance of up to ten meters. Wireless models are released, for example, by Genius. For the convenience of entering data onto a tablet or iPad, keyboards are available for connecting to the device using Bluetooth.
If you have decided on a model and decided to buy a keyboard for your computer, you can go to electronics stores or online stores, where you can find a wide selection of devices.