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Measuring and Classifying Computers

Units of Storage and Speed

Types of Computers: From Supercomputers to Smartphones

Quick Check: Units and Types

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Learn how storage and speed are measured — bits, bytes, and hertz — and how computers are classified by size and power, from supercomputers to smartphones.

What does a gigabyte actually mean, and why is a phone a computer. This module gives you the real units behind storage and speed, then maps the full family of computers from room-sized supercomputers down to the phone in your pocket.

Units, Speed, and Types of Computers

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