Friday, March 7, 2008

History of the Laptop



A small laptop, also known as a notebook computer, (or simply a notebook) is a small-sized personal computer. A laptop typically weighs from one to three kilograms depending on size and other factors.

The term “laptop” was introduced in 1983 with the Gavilan SC. The term “notebook computer” was used to differentiate smaller computers such as the Compaq LTE series of 1989. Nowadays, the terms can be used interchangeably.

However, both terms have been used improperly, because most laptops were inappropriate to use on one’s lap due to heat and other issues. And, some older portable computers, like the Macintosh Portable, were described as “laptops,” but their size and weight were too great to correctly fit in this category.

Laptops typically run on a single battery or from an AC/DC adapter, which charges the battery while supplying power to the computer. Also, laptops usually have liquid crystal displays (LCD) and use different memory modules for their RAMS. They have a built-in keyboard, with a touchpad (trackpad), although a mouse is usually attached.

Different Types of Laptops
Ultraportables—Laptops, which are very portable with screens less than 12 inches diagonally, and weigh less than 1.7kg are known as ultraportables. There laptops are usually used by business people who need small, light computers for travel. These laptops are usually very expensive due to their convenience.
Medium-sized Laptops—These laptops have screens of 15 to 15.4 inches diagonally and weigh around 3 to 3.5 kg.
Desktop Replacement Computers—These are powerful laptops used mainly in a fixed location and are not typically moved because they can be quite large and heavy. There screen size measures 15 inches or more. Their battery life is often limited to three hours because their hardware is not intended for power efficiency.

History of the Laptop

A small laptop, also known as a notebook computer, (or simply a notebook) is a small-sized personal computer. A laptop typically weighs from one to three kilograms depending on size and other factors.

The term “laptop” was introduced in 1983 with the Gavilan SC. The term “notebook computer” was used to differentiate smaller computers such as the Compaq LTE series of 1989. Nowadays, the terms can be used interchangeably.

However, both terms have been used improperly, because most laptops were inappropriate to use on one’s lap due to heat and other issues. And, some older portable computers, like the Macintosh Portable, were described as “laptops,” but their size and weight were too great to correctly fit in this category.

Laptops typically run on a single battery or from an AC/DC adapter, which charges the battery while supplying power to the computer. Also, laptops usually have liquid crystal displays (LCD) and use different memory modules for their RAMS. They have a built-in keyboard, with a touchpad (trackpad), although a mouse is usually attached.

Different Types of Laptops
Ultraportables—Laptops, which are very portable with screens less than 12 inches diagonally, and weigh less than 1.7kg are known as ultraportables. There laptops are usually used by business people who need small, light computers for travel. These laptops are usually very expensive due to their convenience.
Medium-sized Laptops—These laptops have screens of 15 to 15.4 inches diagonally and weigh around 3 to 3.5 kg.
Desktop Replacement Computers—These are powerful laptops used mainly in a fixed location and are not typically moved because they can be quite large and heavy. There screen size measures 15 inches or more. Their battery life is often limited to three hours because their hardware is not intended for power efficiency.

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