It’s no secret that the vast majority of home printers today are inkjet printers. And no wonder: the cheapest inkjet printer costs 3 times less than the cheapest laser printer. True, there is one “but”. The cost of inkjet printing is much more. And the cartridges run out very quickly – you won’t have time to look back. But they are … In general, no money is not enough. What to do? Do you really have to buy a laser printer?
In fact, not everything is so bad: it is possible to significantly reduce the cost of maintaining the printer. To do this, you just have to learn how to refill cartridges yourself. Here is an example. The cost of a Continue reading
We all use the keyboard every day, it is difficult to say whether there can be a more important and universal device for entering information into a computer than a keyboard. It is quite possible that in the near future when a person will communicate with his computer through gestures, facial expressions, graphic images, video images and speech, other means of entering information will crowd out the keyboard. However, today, when text and symbols as carriers of valuable information are still so important, the keyboard is necessarily included in the configuration of the supplied personal computers. A computer without a keyboard is a defective computer!
Computer keyboard evolution
Whatever you do at the computer, play or program, print a document or just chat, you use one of the most Continue reading
In our life we are able to express different emotions, our facial expressions are very rich and diverse. It is well known that our interlocutor receives 80% of information through non-verbal channels of perception: facial expressions, gestures.
When communicating on the Internet, we use emoticons to express our mood:
– I’m sad
-O – surprise
XD – terribly funny
– give a flower
September 19th is considered the birthday of the “emoticon”.
Where did they come from and who invented them? Continue reading