Aviva Directory » Shopping & eCommerce » Computers

The focus of resources in this category or its subcategories is online retailers of computers, computer components, peripherals, and ink.

Devices have been used to aid in computation for thousands of years. However, the modern era of digital computers began in the late 1930s and early 1940s in the United States. These devices used switches operated by electromagnets (relays) and stored programs on punched paper tape or cards. Internal data storage was limited.

In the United Kingdom, pioneering efforts included the development of the Colossus computer during World War II. This massive machine was used to break encrypted German messages. The Manchester Mark I, built in the late 1940s, was one of the earliest stored-program computers.

Germany also made significant contributions. Konrad Zuse's Z3, completed in 1941, is the first electromechanical programmable computer. Due to World War II, his work was largely unnoticed in the US and UK.

Early computers were massive, in both size and cost. IBM's AN/FSQ-7, which powered the SAGE system, was actually two connected computers, an A-side and a B-side, with a combined weight of more than 250 tons. Each of its CPUs took up 7,500 square feet of space. The SAGE network cost $67 billion.

Personal computing began in the United States with the Kenbak-1, designed by John Blankenbaker of Kenbak Corporation in 1970. Another notable early PC was the Altair, sold as an affordable kit. The Apple II was a more advanced home computer, but it cost thousands of dollars.

In the United Kingdom, Sir Clive Sinclair introduced the Sinclair ZX80 around 1980. Selling for under £100, it became very popular. Other manufacturers soon joined the race. The Spectrum ZX and the BBC Micro were sought-after for gaming and programming.

The home computer market paved the way for the digital age as we now know it, connecting us to the technological advancements that have shaped our lives.

Although computers are embedded in several devices today, the variety of computers we recognize as such include desktop computers, laptops, notebooks, tablets, mini PCs, all-in-one computers, servers, mainframes, workstations, and gaming PCs.

Desktop computers include classic towers, sleek all-in-ones, and space-saving mini PCs. Laptops and notebooks are portable and versatile, catering to various needs. Tablets are lightweight touchscreen devices, ideal for casual use and entertainment. Smartphones are essentially tablet computers with phone capabilities.

Mini PCs are compact and energy-efficient, suitable for media centers, home offices, or personal home computing. All-in-one computers combine the display and CPU in a single unit. Apple's iMac and Lenovo's IdeaCentre are examples.

Servers are computers designed to provide services, data, or resources to other computers, known as clients, over a network.

Mainframes are powerful computers used by large corporations for bulk data processing, censuses, industry statistics, and large-scale transaction processing.

Gaming PCs are powerful desktop computers designed to play video games. Gaming PCs are optimized with powerful components (CPU, GPU, RAM) to handle resource-intensive games and for upgradability.

Computers are sold through manufacturer stores, such as the Apple Store, big-box stores, and warehouse club stores, as well as other retailers specializing in electronics. Today, computers are also sold online through computer manufacturing company websites or other retailers, such as Amazon or businesses specializing in online computer sales.

As with other online sales, companies invest in search engine optimization, online advertising, and content creation to reach a global audience and create a brand.

Although many respected historical computer brands have ceased production, several computer brands are on the market today. Popular brands include Acer, Alienware, Apple, ASUS, Dell, HP, Lenovo, Microsoft, NZXT, and Razer.

The best choice in a computer depends on your specific needs and preferences, as well as what you can afford. Some people have a need for a computer that costs thousands of dollars, while others can easily get by with a notebook computer that sells for under a hundred dollars. You will find some choices in the online resources presented below.

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