| Used sun systems at www.used-sun-systems.com for the better prices on used sun systems than from Sun Microsystems |
computer salesdesktop computersA desktop computer is an electronic machine computer that converts raw data into meaningful information, made for use on a desk in an office or home and is distinguished from portable computers such as laptops or PDAs. Desktop computers are also known as microcomputers. There are four types of desktop computers: home computers, or personal computers; workstations, Internet servers, and special communications computers. Desktops are currently the most affordable computers and ubiquitous in businesses, schools, and households; they are used for performing office tasks, organizing digital photos, video editing, and Internet access. Nearly all desktop computers are modular, with components that can easily be replaced or upgraded. Desktop computers come in a variety of case styles ranging from large vertical towers to small form factor models that can be tucked behind an LCD monitor. desktop computers Hardware An exploded view of a modern desktop computer: Display Motherboard CPU (Microprocessor) Primary storage (RAM) Expansion cards Power supply Optical disc drive (ODD) Secondary storage (HDD) Keyboard Mouse The hardware in a desktop computer is modular, making it easy for someone with intermediate knowledge of a computer to modify one. Desktop computers are generally more affordable than notebook computers. This is because no extra effort is needed to miniaturize the components, nor to find design solutions to the thermal management problems that arise from the use of components that emit heat in a compact space. Fan - cools the computer. These are present on most computers. There are often multiple, one to cool the processor(see below), one in the power supply, and possibly additional ones for the graphics card and general cooling. Motherboard (a.k.a. mainboard) - links all of the components together and routes data. HDD (hard disk drive) - location where all information can be stored even when power is off. ODD (optical disc drive) - reads most or all types of CDs and/or DVDs. Processor - The main brain of the computer. CPU Cooler - cools the processing unit. Typically a fan combined with a heatsink. RAM - short-term data storage, volatile (data is erased when the computer is powered off) Graphics card - codes video output and delivers to monitor. Physics card - performs physics computations in some modern games. Sound card - codes sound output and delivers to speakers. Speakers - deliver sound. Modem - used to access data via a telephone line (dial-up connection). Used to access BBS and the Internet. Network card - allows the computer to be linked to a computer network where it can communicate with other computers. Also used as a means of accessing the Internet via a broadband connection. Computer PSU (power supply unit) - A device that provides power to the rest of the computer parts. FDD (floppy disk drive) - Reads and Writes floppy disks. Although largely supplanted by CDs and Flash Drives, is still common on many systems, and may be required during set-up on certain operating systems. |
More Hardware computer best computer sales computer computers best computer sales computers buy computer buy computer buy used computer buy used computer cheap computer cheap computer cheap pc cheap pc cheap PCs cheap PC computer closeout computer closeout computer disposal computer disposal computer donation computer donation computer donations computer donations computer equipment computer equipment computer laptops computer laptops computer liquidation computer liquidation computer liquidator computer liquidator computer liquidators computer liquidators computer monitors computer monitors computer notebook used computer notebook used computer notebooks computer notebooks computer prices computer prices computer recycle computer recycle computer recycled computer recycled computer recyclers computer recyclers computer recycling computer recycling computer removal computer removal computer sale computer sale computer sales computer sales computer scrap computer scrap computer store computer store computer surplus computer surplus computer surplus computer surplus computers for sale computers for sale desktop computers desktop computers discount computer discount computer discount computers discount computers donate computer donate computer donate computers donate computers Sun Systems Used used pc computer sales Indes E-Waste for sale E-Waste |
More computer sales |
|
free computer recycling free computer recycling laptop computer laptop computer laptop computers laptop computers notebook computers notebook computers old computer old computer old computers old computers recycle computers recycle computers recycling computers recycling computers refurbished notebooks refurbished notebooks refurbished pc refurbished pc surplus computers surplus computers used computer used computer used computer equipment used computer equipment used computer games used computer games used computer hardware used computer hardware used computer sale used computer sale used computers used computers used desktops used desktops used laptop computer used laptop computer used laptop computers used laptop computers used laptops used laptops used notebook computers used notebook computers used notebooks used notebooks used pc used pc wholesale computer wholesale computer |
| FREE computer sales free best computer sales Used computer sales |
G H I J K L
A B C D E F
Used
Used computer sales Sun SystemsUsed is computer sales Sun Systems |
| computer donation used phones computers used phones used sun systems Cisco Liquidation Kate Beckinsale A computer display monitor, usually called simply a monitor, is a piece of electrical equipment which displays viewable images generated by a computer without producing a permanent record. The word "monitor" is used in other contexts; in particular in television broadcasting, where a television picture is displayed to a high standard. A computer display device is usually either a cathode ray tube or some form of flat panel such as a TFT LCD. The computer monitor comprises the display device, circuitry to generate a picture from electronic signals sent by the computer, and an enclosure or case. Within the computer, either as an integral part or a plugged-in interface, there is circuitry to convert internal data to a format compatible with a computer monitor. nationwide used computer used network hardware laptop computers used phone used surplus computers Cisco routers Kate Moss A computer is a machine that manipulates data according to a list of instructions. Computers take numerous physical forms. The first devices that resemble modern computers date to the mid-20th century, although the computer concept and various machines similar to computers existed earlier. The first programmer was Ada . Early electronic computers were the size of a large room, consuming as much power as several hundred modern personal computers. Modern computers are based on comparatively tiny integrated circuits and are millions to billions of times more capable while occupying a fraction of the space. Today, simple computers may be made small enough to fit into a wristwatch and be powered from a watch battery. Personal computers in various forms are icons of the Information Age and are what most people think of as "a computer"; however, the most common form of computer in use today is the embedded computer. Embedded computers are small, simple devices that are used to control other devices — for example, they may be found in machines ranging from fighter aircraft to industrial robots, digital cameras, and children's toys. The ability to store and execute lists of instructions called programs makes computers extremely versatile and distinguishes them from calculators. The Church–Turing thesis is a mathematical statement of this versatility: any computer with a certain minimum capability is, in principle, capable of performing the same tasks that any other computer can perform. Therefore, computers with capability and complexity ranging from that of a personal digital assistant to a supercomputer are all able to perform the same computational tasks given enough time and storage capacity. nationwide used computer used network hardware computer notebooks cell phone used test equipment Cisco Switch Katherine Heigl A computer liquidator buys computer technology and related equipment that is no longer required by one company, and resells it to another company. There are several reasons why companies sell used Information Technology equipment: bankruptcy is one, downsizing and expanding are two more, but by far the most common reason is that the equipment is no longer performing the tasks required of it, usually because it has been rendered obsolete by more advanced technology coming on to the market. This used or obsolete technology is often referred to as eWaste. used Cisco forum used network equipment recycling phone number computer donation computer Katie Holmes A desktop computer is an electronic machine computer that converts raw data into meaningful information, made for use on a desk in an office or home and is distinguished from portable computers such as laptops or PDAs. Desktop computers are also known as microcomputers. There are four types of desktop computers: home computers, or personal computers; workstations, Internet servers, and special communications computers. |