Really do not understand

Users questions: My computer input, sometimes several characters are input, and can display still not show up, but you wait a minute, I just typed characters will stand out verbatim, I said Sometimes Kazakhstan. Sometimes it is normal, really do not understand, please give me answers to what the professionals. Thank you! 777 777 Hello, your question is that 90% of the computer to respond slowly lead. The problem at the following two situations. 1, the computer hardware configuration is low (an early computer, CPU low, low memory installed after 2000 or XP operating system, the computer will run slower over time You say the problem caused by) the Second, software problems, usually divided into the following two conditions 1, the operating system in question, the computer system at the start too much load an application (running in the background) which led to the computer responds slowly, so there you situation. 2, computer viruses or Trojan horse program has led to Slow down the computer system, of course, sometimes because the computer installed Rising antivirus and other software, the software automatically updates the memory when large, or you opened a large occupied by the computer software resources in the input text which also led to the computer to respond to of them. Help you raise me and I hope my answer Can help you.
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