A laptop is a portable personal computer typically featuring a clamshell design. It integrates a flat-panel screen in the upper lid and a keyboard and pointing device in the lower section, which also houses most of the computer's internal hardware. Modern laptops often include built-in webcams, and some offer touchscreen displays. Laptops usually operate on desktop operating systems, distinguishing them from tablets that run on mobile operating systems.
As of 2025, a display with anything higher than 1920 pixels wide is generally considered to be a HiDPI display.
In September 1975, the IBM 5100, the first commercially available portable computer based on the SCAMP prototype, was released.
In July 1980, the first "laptop-sized notebook computer", the Epson HX-20, was invented (patented) by Suwa Seikosha's Yukio Yokozawa.
In July 1982, the Epson HX-20 was released. It featured an LCD screen, a rechargeable battery, and a calculator-size printer, all within a 1.6 kg chassis, about the size of an A4 notebook.
In 1982, the GRiD Compass 1101 was released at US$8,150. It was utilized at NASA and by the military.
In 1982, the term 'notebook' emerged to describe Epson's HX-20 portable computer, whose dimensions roughly corresponded to a letter-sized pad of paper.
In 1983, the Gavilan SC introduced the touch pad as a new input technique for laptops.
In 1983, the Sharp PC-5000 was released.
The earliest attestation of the term 'laptop' found by the Oxford English Dictionary dates to 1983.
In 1984-85, the Dulmont Magnum was marketed internationally.
The etymologist William Safire traced the origin of the word laptop to some time before 1984.
Between 1983 and 1985, the Ampere WS-1, and Gavilan SC were released.
In 1986, battery-powered portable computers had only 2% worldwide market share.
In 1987, the Linus Write-Top introduced handwriting recognition in laptops.
By 1988, laptop displays reached 640x480 (VGA) resolution with the Compaq SLT/286.
In 1988, Notebooks emerged as their own separate market from laptops with the release of the NEC UltraLite.
As of 1989, Zenith Data Systems, Toshiba, Compaq, and Grid Systems were the leading vendors in the "small but vital" laptop market.
In 1989, the Personal Computer Memory Card International Association (PCMCIA) was created to promote a standard for memory cards in PCs.
Around 1990, hard drives started to be commonly used in laptops with the introduction of 2.5" and smaller drives. However, capacities typically lagged behind those of physically larger desktop drives.
Between 1990 and 2009, almost all laptops typically had a hard disk drive (HDD) for storage.
By 1990, laptops accounted for one twentieth of the personal computer market.
In 1990, CPUs like the Intel i386SL were designed for minimum power usage to extend battery life in portable computers. Dynamic power management features such as Intel SpeedStep and AMD PowerNow! supported these designs.
In 1990, the first commercial laptop used in space was a Macintosh portable on Space Shuttle mission STS-41.
In 1990, the specification for PCMCIA type I cards, later renamed PC Cards, was first released.
In 1991, a Macintosh portable was again used aboard Space Shuttle mission STS-43.
In 1991, color screens started becoming a common upgrade in laptops, with increases in resolution and screen size occurring frequently until the introduction of 17" screen laptops.
As of 1992–1993, Toshiba ranked as the global leading vendor in the notebook computer market.
By 1992, the laptop market was growing about three times faster than that of desktops.
In 1992, the IBM ThinkPad 700 introduced the pointing stick as a new input technique for laptops.
In 1993, global revenue for the laptop market was led by Compaq, followed by Toshiba, Apple, NEC, and IBM, altogether accounting for over 53% of global revenue.
By 1994, laptops were more profitable than desktops and accounted for one sixth of the personal computer market, up from one twentieth in 1990.
As of 1996, the top three vendors for notebooks in market share in the United States were Toshiba, Compaq, and IBM.
Around 1997, optical disc drives became common in full-size laptops, initially these were CD-ROM drives, and these later included writable and higher capacity formats like DVD and Blu-Ray.
As of 1999, Toshiba ranked first in worldwide laptop sales followed by IBM, Compaq, and Dell, with a market share of 18.6%.
Around 2000, built-in Ethernet network ports became common in mainstream consumer laptops.
Before 2000, most laptops used proprietary memory modules if their memory was upgradable.
Between around 2000 to 2014, most full-size laptops had socketed, replaceable CPUs; on thinner models, the CPU was soldered on the motherboard.
In the first quarter of 2002, Dell controlled 25.2% of the notebook market in the United States, ahead of Toshiba (13.6%) and Compaq (11.7%), which had been acquired by Hewlett-Packard (HP).
In 2003, 17" screen laptops were introduced.
In 2004, Acer became the largest vendor of laptops in the Europe, Middle East, and Africa (EMEA) territories, overtaking HP and IBM.
In May 2005, the average notebook sold for $1,131.
According to IDC in 2005, Dell was the top global vendor of notebooks with a market share of 17.29%, followed by HP, Toshiba, Acer and Lenovo.
In 2005, Acer continued to be the largest vendor of laptops in the Europe, Middle East, and Africa (EMEA) territories.
In 2006, 7 major Original Design Manufacturers (ODMs) manufactured 7 of every 10 laptops in the world, with Quanta Computer holding 30% of the market share.
In 2007, the netbook emerged as a marketing category for small, inexpensive laptops, intended for basic tasks like web browsing and document viewing. These often used the Intel Atom architecture.
Around August 2008, the average price of laptops at U.S. retail stores was US$689 due to low-cost netbooks.
Around 2008, SSDs were initially introduced matching the size and shape of laptop hard drives. They were substantially more expensive than HDDs, but prices converged for smaller drives in the late 2010s.
In the third quarter of 2008, worldwide notebook PC shipments exceeded desktops for the first time, with 38.6 million units versus 38.5 million units.
Between 1990 and 2009, almost all laptops typically had a hard disk drive (HDD) for storage.
In 2010, Intel introduced integrated GPUs into CPUs with the Core i-series of mobile processors, which conserved power and space in laptops.
In the first quarter of 2010, HP or Acer were the largest vendors of portable computers, including netbooks, depending on the data source.
Since around 2010, the practice of using desktop processors in laptops has been restricted to small-volume gaming models due to greater weight, heat, and limited battery life.
In January 2011, AMD followed Intel's lead with similar APU processors that integrated the GPU into the CPU.
As of 2011, over 100 ThinkPads were aboard the International Space Station (ISS).
Since 2011, high-end laptops intended for gaming or professional 3D work tend to come with dedicated graphics processors and almost always involve switchable graphics like Nvidia Optimus and AMD Hybrid Graphics.
Starting around 2011, the trend shifted against internal optical drives in laptops.
The Dell M17x and Samsung 700G7A, both released in 2011, were among the first laptops to feature a 120 Hz refresh rate, and more such laptops have appeared in the years since.
Since the introduction of the MacBook Pro with Retina display in 2012, there has been an increase in the availability of "HiDPI" (or high pixel density) displays.
Around 2014, SSDs started to be increasingly replaced with smaller mSATA or M.2 cards, often becoming more compact.
Between around 2000 to 2014, most full-size laptops had socketed, replaceable CPUs; on thinner models, the CPU was soldered on the motherboard.
In 2015, Apple transitioned its MacBook from a number of different I/O ports to exclusively USB-C ports, which could be used for charging and connecting devices through aftermarket adapters.
Since 2015, Intel has not offered new laptop CPU models with pins to be interchangeable, preferring ball grid array chip packages which have to be soldered.
Since 2015, virtually all laptops use processors that are soldered to the motherboard, making them non-replaceable.
Around 2016, most laptops started using a smart battery, a rechargeable battery pack with a built-in battery management system (BMS).
Since 2018, Macs have consistently used permanently attached SSDs (integrated with the motherboard).
As of the third quarter of 2020, HP and Lenovo were cited as the leading vendors for notebook computers, each with a share of 23.6%.
As of 2021, mainstream consumer laptops tend to have screens ranging between 13" and 16".
As of 2022, internal optical drives have largely disappeared from laptops, although they are still readily available as external peripherals.
As of 2023, a new laptop can be obtained for $299.
In 2023, it was estimated that 166 million laptops were sold.
As of 2024, in American English, the terms laptop and notebook are used interchangeably. However, in other dialects of English, one or the other may be preferred.
In the first quarter of 2024, around 64% of personal computers sold were laptops or detachable tablets.
As of 2025, 16 GB RAM is most common in laptops, with lower-end models occasionally having 8 GB, and 4 GB configurations being limited to very-low-cost models. Higher-end laptops may come with 64 GB of RAM or more.
As of 2025, HDDs are essentially extinct in new laptops
As of 2025, a display with anything higher than 1920 pixels wide is generally considered to be a HiDPI display.
As of 2025, a typical laptop usually includes several USB ports, and if they use older USB connectors instead of USB-C, they typically have an external monitor port (almost always HDMI). An analog audio in/out port (in a combined socket) is also common.
As of 2025, laptops are broadly divided between being powered only by USB-C connectors versus having a dedicated DC power connector; most systems since the mid-2010s that have both connectors can be powered by either.
As of 2025, mainstream laptops can have as few as 6 cores and as many as 16, with high end workstation laptops having as many as 24, and low end or ultra-portable models still being available with 4 cores.
As of 2025, optical disc drives are virtually unknown in new laptops; when needed, they can be connected via USB instead.
As of 2025, very few laptops support expansion cards, with the primary means of expansion being via USB or Thunderbolt.
As of 2025, virtually all laptops use NVME solid-state drives for storage, usually in one or more M.2 slots on non-MacOS laptops.
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