তথ্য প্রযুক্তি

IP is a unreliable protocol because it does not guarantee the delivery of a datagram to its destination. The reliability must be provided by the upper layer protocols like TCP. IP does not support flow control, retransmission, acknowledgement and error recovery.

টেলিফোনের ক্ষেত্রে প্রতিটি ফোন সেটের জন্য যেমন একটি নাম্বার থাকে, ঠিক তেমনি ইন্টারনেটে প্রতিটি কম্পিউটারের জন্য একটি আইডেন্টিটি থাকে, যা IP ( Internet Protocol) অ্যাড্রেস নামে পরিচিত।

A broadcast address is a network address used to transmit to all devices connected to a multiple - access communications network. A message sent to a broadcast address may be received by all network - attached hosts.

A route is a networking device that forwards data packets between computer networks. Routers perform the traffic directing functions on the Internet. Data sent through the internet, such as a web page or email, is in the form of data packets. A packet is typically forwarded from one router to another router through the networks that constitute an internetwork (e.g. the Internet) until it reaches its destination node.

Client–server model is a distributed application structure that partitions tasks or workloads between the providers of a resource or service, called servers, and service requesters, called clients. Often clients and servers communicate over a computer network on separate hardware, but both client and server may reside in the same system. A server host runs one or more server programs, which share their resources with clients.

(a). A file transfer protocol is used to transfer files over the internet. (b). HTTP(Hypertext Transfer Protocol) is used to send and receive web pages. (c). HTML stands for Hypertext Markup Language. It allows the user to create and structure sections, paragraphs, headings, links, and block quotes for web pages and applications. HTML is not a programming language, meaning it doesn't have the ability to create dynamic functionality.

Web standards are the formal, non - proprietary standards and other technical specifications that define and describe aspects of the World Wide Web. In recent years, the term has been more frequently associated with the trend of endorsing a set of standardized best practices for building web sites, and a philosophy of web design and development that includes those methods.

Microsoft word - এ বানান বা spelling check করার জন্য ফাংশন কী F - 7 ব্যবহার করা যায়। আবার ম্যানুয়ালি মেন্যুবারে টুলস অপশনে গিয়ে spelling and grammar select করেও বানান ঠিক করা যায়।

MS Excel, Ms Word, MS Power Point, MS Access হলো Microsoft প্রবর্তিত Application Software । এরা Pakage program ধরনের Software। Word processing, Spread sheet, Database management - এ জাতীয় কাজের জন্য Microsoft Office নামের এই Pakage software - টি ব্যবহৃত হয়। Oracle হলো একটি Programming Language । কম্পিউটার Programming এর জন্য হাই লেভেল Language এটি। Windows vista হলো Microsoft প্রবর্তিত একটি 64 বিটের Operating system । Operating System Software গুলোকে System software - ও বলা হয়। Notepad হলো একটি plain text editing program যা microsoft windows এর (1.0 version থেকে শুরু করে) সকল version - এ পাওয়া যায়।

In a spreadsheet program such as Microsoft Excel, a label is text within a cell, usually describing data in the rows or columns surrounding it.