Starting up a computer is also known as booting up a computer.
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What is 1 Gigabyte?
1 Gigabyte is 1024 megabytes exactly.
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What are magnetic devices?
Magnetic devices store binary data patterns as billions of magnetised areas on the disk. These areas can be read from or written to by a special hand that moves over the magnetic area.
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What are optical devices?
Optical devices store binary patterns using lasers. The lasers shine onto a dish and change whether an area on it can reflect light or not.
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