Wallpaper Download For Mobile Free Hd for Mobile Free Image Search for Pc Love Hd 3d free For Mobile: Desktop Wallpapers free Download Wallpaper Download For Mobile Free Hd for Mobile Free Image Search for Pc Love Hd 3d free For Mobile

Desktop Wallpaper Biograhy

An all-in-one desktop computer integrates the system's internal components into the same case as the display, eliminating some connecting cables and allowing for a smaller footprint, sometimes giving a degree of portability, compared to the standard desktop configuration of the separate display monitor and computer system case. However the all-in-one form factor still requires an external power supply and must be deployed on a table or desk to use the (still separate) keyboard and mouse, making them less mobile than a laptop which can rely on power supplied by a rechargeable battery and provides a built-in keyboard plus pointing device for its user.
The all-in-one form factor was popular during the early 1980s for computers intended for professional use such as the Kaypro II, Osborne 1,TRS-80 Model II and Compaq Portable. Many manufacturers of home computers like Commodore and Atari included the computer's motherboard into the same enclosure as the keyboard; these systems were most often connected to a television set for display. Apple has manufactured several popular examples of all-in-one computers, such as the original Macintosh of the mid-1980s and the iMac of the late 1990s and 2000s. By the early 2000s, many all-in-one designs were using flat panel displays, and by late 2012 some all-in-one models also included touchscreen displays to accommodate Windows 8.enc
Some all-in-one desktops such as the iMac G4 have used laptop components in order to reduce the size of the system case.[20] Like laptops, some all-in-one desktop computers are characterized by an inability to customize or upgrade internal components, as the systems' cases do not provide easy access except through panels which only expose connectors for RAM or storage device upgrades. However, newer models of all-in-one computers have changed their approach to this issue. Many of the current manufacturers are using standard off-the-shelf components and are designing upgrade convenience into their products.[21]
Comparison with laptops[edit]

Main article: Laptop § Disadvantages
Desktops have the advantage over laptops, as the spare parts and extensions tend to be standardized, resulting in lower prices and greater availability. For example, the size and mounting of the motherboard is standardized into ATX, microATX, BTX or other form factors. Desktops have several standardized expansion slots, like Conventional PCI orPCI express, while laptops only tend to have one mini PCI slot and one PC card slot (or ExpressCard slot). Procedures for (dis-)assembly of desktops tend to be simple and standardized as well. This tends not to be the case for laptops, though adding or replacing some parts, like the optical drive, hard disk, or adding an extra memory module is often quite simple. This means that a desktop computer configuration, usually a tower case, can be customized and upgraded to a greater extent than laptops. This customization has kept tower cases popular among gamers and enthusiasts.
Another advantage of the desktop is that (apart from environmental concerns) power consumption is not as critical as in laptop computers because the desktop is exclusively powered from the wall socket. Desktop computers also provide more space for cooling fans and vents to dissipate heat, allowing enthusiasts to overclock with less risk. The two large microprocessor manufacturers, Intel and AMD, have developed special CPUs for mobile computers (i.e. laptops) that consume less power and lower heat, but with lower performance levels.
Laptop computers, conversely, offer portability that desktop systems (including small form factor and all-in-one desktops) can not due to their compact size and clamshell design. The laptop's all-in-one design provides a built-in keyboard plus pointing device for its user, and can draw on power supplied by a rechargeable battery.
Laptops also commonly integrate wireless technologies like WiFi, Bluetooth and 3G, giving them a broader range of options for connecting to the internet, though this trend is changing as more desktop computers come integrated with one or more of these technologies.
A desktop computer needs a UPS to handle electrical disturbances like short interruptions, blackouts and spikes; achieving an on-battery time of more than 20–30 minutes for a desktop PC requires a large and expensive UPS.[22][23] A laptop with sufficiently charged battery can continue to be used for hours in case of a power outage and is not affected by short power interruptions and blackouts.A desktop replacement computer (DTR) was a class of short-lived personal computer that provides the full capabilities of a desktop computer while remaining mobile. They are often larger, bulkier laptops. Because of their increased size, this class of computer usually includes more powerful components and a larger display than generally used in smaller portable computers and can have a relatively limited battery capacity (or none at all). Some use a limited range of desktop components to provide better performance at the expense of battery life. These are sometimes called desknotes, a portmanteau of the words "desktop" and "notebook", though the term is also applied to desktop replacement computers in general.The forerunners of the desktop replacement were the portable computers of the early to mid-1980s, such as the Osborne I,[2] Kaypro II, the Compaq Portable[3] and theCommodore Executive 64 (SX-64) computers.[4] These computers contained the CPU, display, floppy disk drive and power supply all in a single briefcase-like enclosure. Similar in performance to the desktop computers of the era, they were easily transported and came with an attached keyboard that doubled as a protective cover when not in use. They could be used wherever space and an electrical outlet were available, as they had no battery.
The development of the laptop form factor gave new impetus to portable computer development. Many early laptops were feature-limited in the interest of portability, requiring such mobility-limiting accessories as external floppy drives or clip-on trackball pointing devices. One of the first laptops that could be used as a standalone computer was theEUROCOM 2100 based on Intel's 8088 CPU architecture, it duplicated the functionality of the desktop models without requiring an external docking station.
The development of the modern desktop replacement computer came with the realization that many laptops were used in a semi-permanent location, often remaining connected to an external power source at all times. This suggested that a market existed for a laptop-style computer that would take advantage of the user's reduced need for portability, allowing for higher-performance components, greater expandability, and higher-quality displays. Desktop replacement computers are also often used with a port replicator, to fully enjoy the desktop comfort.

Desktop Wallpapers free Download Wallpaper Download For Mobile Free Hd for Mobile Free Image Search for Pc Love Hd 3d free For Mobile