Monday, October 5, 2009

Input and Output

Magnetic Ink Character Recognition ( MICR )
this is used widely in the banking world. this technology is used to process cheques. the input the information,such as the account number on the cheque, for the computer to process.

Optical-Character Recognition ( OCR )
the mechanical or electrical images translation of handwritten, typewritten or printed text into machine-editable text. it is also a way for text being inserted to a computer by means of a document reader. First a digital image of the text is produced by the scanner; then this character-recignition software makes use of stored knowledge regarding the shapes of individual characters to convert the digital image to a set of internal codes that can be stored and processed by a computer. OCR originally required specially designed characters but current devices can recognize most standard typefaces and even handwriting

Optical-Mark Recognition ( OMR )
process of capturing human-marked data from document forms such as surveys and tests.
preprinted onto 'transoptic' paper and measure the amount of light which passes through the paper, thus a mark on either side of the paper will reduce the amount of light passing through the paper.
One of the most familiar applications of optical mark recognition is the use of #2 (HB in Europe) pencil bubble optical answer sheets in multiple choice question examinations. Students
optimized for computer scanning, with careful registration in the printing, and careful design so that ambiguity is reduced to the minimum possible
extracting intended data from marked fields, such as checkboxes and fill-in fields, on printed forms.

Dot Matrix Printer
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
printing involves mechanical pressure, these printers can create carbon copies and carbonless copies
type of printer that produces characters and illustrations by striking pins against an ink ribbon to print closely spaced dots in the appropriate shape. Dot-matrix printers are relatively expensive and do not produce high-quality output. However, they can print to multi-page forms (that is, carbon copies), something laser and ink-jet printers cannot do.

Plotter
a vector graphics printing device to print graphical plots, that connects to a computer
Pen plotters print by moving a pen across the surface of a piece of paper

A device that draws pictures on paper based on commands from a computer. Plotters differ from printers in that they draw lines using a pen. As a result, they can produce continuous lines, whereas printers can only simulate lines by printing a closely spaced series of dots. Multicolor plotters use different-colored pens to draw different colors

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.
A printer which uses an ink ribbon and heat to transfer (vaporize) the ink to the dedicated paper

Portable Printer


Fax Machine
technology used to transfer copies (facsimiles) of documents, especially using affordable devices operating over the telephone network.
A device which scans, transmits, receives and prints documents (faxes) transmitted by telephone
A device that allows the user to fax information over a communication line.
A fax machine is essentially an image scanner, a modem, and a computer printer combined into a highly specialized package.
a machine capable of sending and receiving text and pictures along phone lines

Multifunctional Device
machine which incorporates the functionality of multiple devices in one, so as to have a smaller footprint in a home or small business setting (the SOHO market segment), or to provide centralized document management/distribution/production in a large-office setting. A typical MFP may act as a combination of some or all of the following devices:
Printer
Scanner
Photocopier
Fax
E-mail

Internet telephones
Voice over Internet Protocol (VoIP) is a general term for a family of transmission technologies for delivery of voice communications over IP ...
A telephone or telephone system that uses the internet to transmit all or just a proportion of a call.
A category of hardware and software that enables people to use the Internet as the transmission medium for telephone calls. For users who have free, or fixed-price Internet access, Internet telephony software essentially provides free telephone calls anywhere in the world. To date, however, Internet telephony does not offer the same quality of telephone service as direct telephone connections.

Monday, August 17, 2009

The Internet, The Web and Electronic Commerce

Another tutorial and yet another task. we are asked to define these words.

HTML ?
Javascript ?
Applets ?
Business-to-Consumer E-Commerce ?
Consumer-to-Consumer E-Commerce ?

after a few minutes of snoozing, i have decided to actually do some work :DDDD

soo here it gooooess..

HTML :)
an Acronym the word " HyperText Markup Language "
it tells the World Wide Web ( www ) how to sort and place everything in the page.
it is in code form.
eg: its the code you copy in order to put up the picture in our webpage.
there are website that can convert you rpicture into html code.
eg; www.photobucket.com

JAVASCRIPT ;B
was developed by the company Netscape, something like Internet Explorer.
is a proggram that tells the browser that the HTML code is fully loaded.

APPLETS c;
helps you to cross-link your current website to another.
example, the games in facebook. you are in a hosted website in facebook.

FILTERS :D

Monday, August 3, 2009

Careers in IT

Although IT may seem boring to many people, for some it could be the life career.

Webmaster
He/she is the person who makes sure the website is fully functional and updated on everyday basis. basicly he/she is the brain of the website, they have the power to change, design and alter to the requirements



Computer Support Specialist ( CSS )
The person who who install softwares and hardwares for your computer. on general basis, the CSS will find the source of the problem and solutions. There are two types of CSS, Technical Support Specialist and Help-Desk Technical .
The Technical Support Specialist helps to install , modify and clean upon request and requirements while the Help-Desk Technicians deal with individual mainly through the phone or emails. they will ask a series of question to come out with the right diagnosis and the solutions for the problem.




Technical Writer
the profesional writer that writes , design and changes documents is called a Technical Writer. they writes procedures and instructions for the consumers to use.




Software Engineer
The people who apply the mathematical and science of computing in developing a software or system for the computers. they will first analyst the needs of the user and come out with instructions which also known as algorithm. this sofware engineer then help to convert the information to the computer so that the computer would function accordingly and ensure the system would work well.






Network admistrator
highest level of technical/network staff
concentrate on the overall health of the network, server deployment, security, and ensuring that the network connectivity throughout a company's LAN/WAN infrastructure is on par with technical considerations at the network level of an organization's hierarchy
network address assignment, assignment of routing protocols and routing table configuration as well as configuration of authentication andauthorizationdirectory services. It often includes maintenance of network facilities in individual machines





database adminstrator
he/she is responsible for the environmental aspects of a database.
and when it comes to installing a new software . Configuration of hardware and software is one of their main skills . apart from that, they analyst data and design a database on the primilary basis





system analyst
system analyst is also known as the decision maker, they identify a better course of action and make a better decision than he might have otherwise made . they mainly deal with analysis of sets of interacting entities , industrial processes, management, decision makingprocesses, environmental protection processes, etc





programmer
the person writes computer software and also specialist in a specific area of computer programming or to a generalist who writes code for many kinds of software