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Computer keyboard is the set of typewriter-like keys that enables you to enter data into a computer. Computer keyboards are similar to electric-typewriter keyboards but contain additional keys. The keys on computer keyboards are often classified as follows:
alphanumeric keys – letters and numbers;
punctuation keys – comma, period, semicolon, and so on;
special keys – function keys, control keys, arrow keys, Caps Lock key, and so on.
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What are computer keyboards similar to?
They are similar to anything.
They are similar to typewriter keyboards.
They are similar to electric-typewriter keyboards.
They are similar to electric-typewriter keyboards but they have additional keys.