The typewriter is a writing machine which uses a typeball to create characters by hammering ink onto paper. It comes in many different forms and has been in use since the late 19th century. The following are some of the most popular purposes of the typewriter.
In a transistor radio receiver, the function of a transistor is to amplify alternating current signals, which is done by varying the amount of metal on two sides of a small conducting strip called an oxide.
If you have ever been asked this question, there is a high chance that you answered with the word "computer." And while this is not always the correct answer, it's actually a trait of computers. But what other characteristics are there?