Optical Coder

11/12/2019

"সত্য-মিথ্যা যাচাই আগে, ইন্টারনেটে শেয়ার পরে" তৃতীয় ডিজিটাল বাংলাদেশ দিবস ২০১৯ সফল হোক!

10/04/2018

Do you know ? What is API ?

In computer programming, an application programming interface (API) is a set of subroutine definitions, protocols, and tools for building application software. In general terms, it is a set of clearly defined methods of communication between various software components. A good API makes it easier to develop a computer program by providing all the building blocks, which are then put together by the programmer. An API may be for a web-based system, operating system, database system, computer hardware or software library. An API specification can take many forms, but often includes specifications for routines, data structures, object classes, variables or remote calls. POSIX, Windows API and ASPI are examples of different forms of APIs. Documentation for the API is usually provided to facilitate usage.

10/04/2018

Congrats Mamurnur rashid from

08/04/2018

Serial Port ::

- Used for external modems and older computer mouse

- Two versions: 9 pin, 25 pin model

- Data travels at 115 kilobits per second

Parallel Port ::

- Used for scanners and printers

- Also called printer port

- 25 pin model

- IEEE 1284-compliant Centronics port

PS/2 Port ::

- Used for old computer keyboard and mouse

- Also called mouse port

- Most of the old computers provide two PS/2 port, each for

the mouse and keyboard ::

- IEEE 1284-compliant Centronics port

Serial Port ial Bus (or USB) Port ::

- It can connect all kinds of external USB devices such as external hard disk, printer, scanner, mouse, keyboard, etc.

- It was introduced in 1997.

- Most of the computers provide two USB ports as minimum.

- Data travels at 12 megabits per seconds.

- USB compliant devices can get power from a USB port.

VGA Port ::

- Connects monitor to a computer's video card.

- It has 15 holes.

- Similar to the serial port connector. However, serial port connector has pins, VGA port has holes.

Power Connector ::

- Three-pronged plug.

- Connects to the computer's power cable that plugs into a power bar or wall socket.

Firewire Port ::

- Transfers large amount of data at very fast speed.

- Connects camcorders and video equipment to the computer.

- Data travels at 400 to 800 megabits per seconds.

- Invented by Apple.

- It has three variants: 4-Pin FireWire 400 connector, 6-Pin FireWire 400 connector, and 9-Pin FireWire 800 connector.

Modem Port ::

- Connects a PC's modem to the telephone network.

Ethernet Port ::

- Connects to a network and high speed Internet.

- Connects the network cable to a computer.

- This port resides on an Ethernet Card.

- Data travels at 10 megabits to 1000 megabits per seconds depending upon the network bandwidth.

Game Port ::

- Connect a joystick to a PC

- Now replaced by USB

Digital Video Interface, DVI port

- Connects Flat panel LCD monitor to the computer's high-end video graphic cards.

- Very popular among video card manufacturers.

Sockets ::

- Sockets connect the microphone and speakers to the sound card of the computer.

03/04/2018

There’s a big difference between responsive and mobile web design..! 🤔

Most people don’t think about the seemingly magical website conversion that happens when they switch between their smartphone and computer. These are two very different approaches to shifting screen sizes, either mobile design or responsive design.

Mobile design is restrictive. It serves up a separate, and often limited, version of your website that can be used on smartphones and tablets. However, because mobile websites generally provide visitors with the bare basics that the site has to offer, they won’t get to see the full glory of your web design or use it to its full potential.

Responsive design is extremely flexible, allowing websites to resize and reflow their layout based on the visitor’s screen size. This gives visitors a consistent experience from large-screen, high-resolution monitors all the way to the smallest smartphone touchscreens, while also having an experience that is suited to each of those individual devices. Responsive websites will simply adapt to their environment, while maintaining the same stunning images, typefaces, and navigational options.

The complexities of web design are indeed mind-blowing, requiring a high level of updated awareness and attention to detail to create the best website possible. Keep these facts in mind as you move forward with your own web presence!

03/04/2018

Boss VS Leader..!!

7 Differences Between A Boss And A Real Leader

29/03/2018

corporate html landing page... approved on themeforest
congrats team

OCPOINT COTPORATE Landing Page HTML Template is a uniquely HTML template develop in HTML with a modern look. HTML files are well organized and named accordingly so its very easy to customize and u...

25/03/2018

Our HTML app landing page - approved on 🙂
Check the template from themeforest -

Buy APPLE - HTML App Landing Page by themeshand on ThemeForest. APPLE – Apple HTML Template is a uniquely HTML template develop in HTML5 with a modern look. HTML files are well orga...