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2. History of laptops - Wikipedia

   en.wikipedia.org/wiki/History_of_laptops

   R2E CCMC Portal laptop. The portable microcomputer "Portal", of the French company R2E Micral CCMC, officially appeared in September 1980 at the Sicob show in Paris.The Portal was a portable microcomputer designed and marketed by the studies and developments department of the French firm R2E Micral in 1980 at the request of the company CCMC specializing in payroll and accounting.

3. Dell - Wikipedia

   en.wikipedia.org/wiki/Dell

   Dell Inc. is an American technology company that develops, sells, repairs, and supports computers and related products and services. Dell is owned by its parent company, Dell Technologies. [ 3][ 4] Dell sells personal computers (PCs), servers, data storage devices, network switches, software, computer peripherals, HDTVs, cameras, printers, and ...

4. Dell Precision - Wikipedia

   en.wikipedia.org/wiki/Dell_Precision

   Dell Precision is a series of computer workstations for computer-aided design / architecture / computer graphics professionals, or as small-scale business servers [citation needed]. They are available in both desktop (tower) and mobile (laptop) form. Dell touts their Precision Mobile Workstations are "optimized for performance, reliability and ...

5. History of the battery - Wikipedia

   en.wikipedia.org/wiki/History_of_the_battery

   History of the battery. Batteries provided the primary source of electricity before the development of electric generators and electrical grids around the end of the 19th century. Successive improvements in battery technology facilitated major electrical advances, from early scientific studies to the rise of telegraphs and telephones ...

6. Lithium-ion battery - Wikipedia

   en.wikipedia.org/wiki/Lithium-ion_battery

   A lithium-ion or Li-ion battery is a type of rechargeable battery that uses the reversible intercalation of Li + ions into electronically conducting solids to store energy. In comparison with other commercial rechargeable batteries, Li-ion batteries are characterized by higher specific energy, higher energy density, higher energy efficiency, a ...

7. Rechargeable battery - Wikipedia

   en.wikipedia.org/wiki/Rechargeable_battery

   Rechargeable battery. A battery bank used for an uninterruptible power supply in a data center. A rechargeable lithium polymer mobile phone battery. A common consumer battery charger for rechargeable AA and AAA batteries. A rechargeable battery, storage battery, or secondary cell (formally a type of energy accumulator ), is a type of electrical ...