Input an Output.

Magnetic Ink Character Recognition.

Magnetic Ink Character Recognition - (MICR) A character recognition system using special ink and characters which can be magnetised and read automatically.MICR is used almost exclusively in the banking industry where it is used to print details on cheques to enable automatic processing.

Optical Character Recognition.

This is the technology long used by libraries and government agencies to make lengthy documents quickly available electronically. Advances in OCR technology have spurred its increasing use by enterprises. For many document-input tasks, OCR is the most cost-effective and speedy method available. And each year, the technology frees acres of storage space once given over to file cabinets and boxes full of paper documents.

Optical Mark Recognition.

Optical Mark Recognition (also called Optical Mark Reading and OMR) is the process of capturing human-marked data from document forms such as surveys and tests.

Dot Matrix Printer

A dot matrix printer or impact matrix printer is a type of computer printer with a print head that runs back and forth, or in an up and down motion, on the page and prints by impact, striking an ink-soaked cloth ribbon against the paper, much like a typewriter. Unlike a typewriter or daisy wheel printer, letters are drawn out of a dot matrix, and thus, varied fonts and arbitrary graphics can be produced. Because the printing involves mechanical pressure, these printers can create carbon copies and carbonless copies.

Plotters

A plotter is a vector graphics printing device to print graphical plots, that connects to a computer. There are two types of main plotters. Those are pen plotters and electrostatic plotters.

Photo printer

A photo printer is a printer (usually an inkjet printer) that is specifically designed to print high quality digital photos on photo paper. These printers usually have a very high number of nozzles and are capable of printing droplets as small as 1 picoliter.

Portable printer

For people that are travelling but who need to work while on the go, a small portable printer that is light weight and easy to carry can be a necessity. So far the producers of laptops haven’t been able to incorporate a printer into the computer itself but it will very likely be something that will happen in the near future. But until that happens, we’ll have to find a printer that is small, weighs very little but that will still be able to print in high quality and at a reasonable speed.

Fax machine

is a telecommunications technology used to transfer copies (facsimiles) of documents, especially using affordable devices operating over the telephone network.

Multifunctional devices

putting a printer, scanner, copier and sometimes even a fax machine all in a single case, the price for the combination unit is less than the total cost for the individual units would be. What's more, the all-rounders require less space and even work without a computer in fax (if available) and copy modes.

Internet telephones

Internet Telephone allows you to make calls from your PC over the internet to anywhere in the World at highly competitive rates.

Telephony

In telecommunication, telephony encompasses the general use of equipment to provide voice communication over distances, specifically by connecting telephones to each other.

System Unit

Expansion card.

An expansion card (also expansion board, adapter card or accessory card) in computing is a printed circuit board that can be inserted into an expansion slot of a computer motherboard to add additional functionality to a computer system.

Network Interface Card.

A network interface card, more commonly referred to as a NIC, is a device that allows computers to be joined together in a LAN, or local area network. Networked computers communicate with each other using a given protocol or agreed-upon language for transmitting data packets between the different machines, known as nodes. The network interface card acts as the liaison for the machine to both send and receive data on the LAN.

Plug and Play.

In computing, plug and play is a term used to describe the characteristic of a computer bus, or device specification, which facilitates the discovery of a hardware component in a system, without the need for physical device configuration, or user intervention in resolving resource conflicts.

CPU socket

the connector on a computer's motherboard for the CPU

Chips.

A small piece of semiconducting material (usually silicon) on which an integrated circuit is embedded. A typical chip is less than ¼-square inches and can contain millions of electronic components (transistors). Computers consist of many chips placed on electronic boards called printed circuit boards.

Slots.

An opening in a computer where you can insert a printed circuit board. Slots are often called expansion slots because they allow you to expand the capabilities of a computer. The boards you insert in expansion slots are called expansion boards or add-on boards.

Bus lines.

A collection of wires through which data is transmitted from one part of a computer to another. You can think of a bus as a highway on which data travels within a computer. When used in reference to personal computers, the term bus usually refers to internal bus. This is a bus that connects all the internal computer components to the CPU and main memory. There's also an expansion bus that enables expansion boards to access the CPU and memory.

Serial port.

A port, or interface, that can be used for serial communication, in which only 1 bit is transmitted at a time. Most serial ports on personal computers conform to the RS-232C or RS-422 standards. A serial port is a general-purpose interface that can be used for almost any type of device, including modems, mice, and printers (although most printers are connected to a parallel port).

Parallel port.
A parallel interface for connecting an external device such as a printer. On PCs, the parallel port uses a 25-pin connector (type DB-25) and is used to connect printers, computers and other devices that need relatively high bandwidth. It is often called a Centronics interface after the company that designed the original standard for parallel communication between a computer and printer.

Universal Serial Bus Port.

Short for Universal Serial Bus, an external bus standard that supports data transfer rates of 12 Mbps. A single USB port can be used to connect up to 127 peripheral devices, such as mice, modems, and keyboards. USB also supports Plug-and-Play installation and hot plugging.

Firewire Port.

Faster video transfer. A single 1394 port can be used to connect up 63 external devices. In addition to its high speed, 1394 also supports isochronous data -- delivering data at a guaranteed rate. This makes it ideal for devices that need to transfer high levels of data in real-time, such as video devices.

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Careers in IT

Careers in IT
Webmaster
-A webmaster designs or maintains a Web site(dictionary.com). A webmaster's work may include ensuring that the web servers, hardware and software are operating accurately, designing the website, generating and revising web pages, replying to user comment, and examining traffic through the site.

Computer Support
-A computer support specialist consults in installation, support, training, website design and more.Technical support (also tech support) is a range of services providing assistance with technology products such as mobile phones, televisions, computers, or other electronic or mechanical goods. In general, technical support services attempt to help the user solve specific problems with a product—rather than providing training, customization, or other support services.


Technical Writer
-A technical writer is a professional writer who designs, writes, creates, maintains, and updates technical documentation—including online help, user guides, white papers, design specifications, system manuals, and other documents. Engineers, scientists, and other professionals may also produce technical writing, sometimes handing their work to a professional technical writer for editing and formatting. A technical writer produces technical documentation for technical, business, and consumer audiences.


Software engineer
-A software engineer researches, designs and develops software systems to meet with clients requirements. Once the system had been fully designed software engineers then test, debug, and maintain the systems. They increasingly need to have knowledge of a variety of computer programming languages and applications; this is due to the wide variety of work that they can be involved in.


Network administrator
-Job descriptionNetwork engineers are responsible for installing, maintaining and supporting computer communication networks within an organisation or between organisations. Their goal is to ensure the smooth operation of communication networks in order to provide maximum performance and availability for their users (staff, clients, customers, suppliers, etc.).


Database Administrator
-Job descriptionA database administrator (DBA) is responsible for the performance, integrity and security of a database. Additional role requirements are likely to include planning, development and troubleshooting.



Programmer.
-A programmer is someone who writes computer software. The term computer programmer can refer to a specialist in one area of computer programming or to a generalist who writes code for many kinds of software. One who practices or professes a formal approach to programming may also be known as a programmer analyst.