IT infrastructure indicates to the composite software hardware, network resources and support required for the existence, operation and management of an enterprise IT environment.
Desktop computer is a personal computer designed for regular use at a single location on a desk or table due to its size and power requirements. The most common configuration has a case that incorporates the power supply, motherboard PCB with a microprocessor as the CPU, memory, electronic components, disk storage, a keyboard and mouse for input; and a computer monitor and often, a printer for output.
Laptop, often called as notebook computer, is a small, portable personal computer with a compact design, an alphanumeric keyboard on the lower part of the Laptop and a thin LCD or LED computer screen on the upper portion of the laptop, which is opened up to use the computer. Laptops are folded with hinges, and thus are suitable for mobile use.Laptops are commonly used in Work, Education, Industries and Home purpose use.
Thin client is a lightweight computer that is purpose-built for remote access to a server cloud or desktop virtualization environments. It depends heavily on another computer to fulfill its computational roles. The specific roles assumed by the server may vary, from hosting a shared set of virtualized applications, a shared desktop stack or virtual desktop, to process the data and file storage on the client's behalf.
Server is a device that provides functionality for other programs called clients. Architecture is called the client–server model, and a single overall computation is distributed across all devices. It can provide various functionalities, often called services, such as sharing data or resources among multiple clients, or performing computation for a client. A single server can serve multiple clients, and a single client can use multiple servers. Client can run on the same device or may connect over a network to a server on a different device. Server types are database servers, file servers, mail servers, print servers, web servers, game servers and application servers.
Workstation is primarily to be used by one person at a time, they are commonly connected to a local area network and run multi-user operating systems. The term workstation has also been used to refer everything from a mainframe computer terminal to a PC connected to a network.
An uninterruptible power supply (UPS) is a device that allows a computer to keep running for at least a short time when the primary power source is lost. It also provides protection from power surges.
Laser printing is an electrostatic digital printing process. It produces high-quality text and graphics by repeatedly passing a laser beam back and forth over a negatively charged cylinder called a DRUM to define a differentially charged image. The drum then selectively collects electrically charged powdered ink (toner), and transfers the image to paper, which is then heated in order to permanently fuse the text and/or imagery. As with digital photocopiers, laser printers employ a xerographic printing process.
Multi-Function Device (MFD), is an office machine which incorporates the functionality of multiple devices in one, so as to have a smaller in a home or small business setting or to provide centralized document management / distribution / production in a large-office setting. MFP may act as a combination of some or all of the following devices:
The plotter is a computer printer for printing vector graphics. Plotters were used in applications such as computer-aided design, though they have generally been replaced with wide-format conventional printers. A plotter gives a hard copy of the output. It draws pictures / vector curves on a paper .Plotters are used to print designs of ships and machines, plans for buildings and so on.
Line printer is an impact printer that prints one entire line of text at a time. It is mostly associated with unit record equipment and the early days of digital computing.
