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What is computer outsourcing and freelancing? What are the work areas of outsourcing and freelancing?

Outsourcing Computer Outsourcing: The word outsourcing information freelancing basically means free profession. That is, a profession to earn income by working freely. And a little more simply. In other words, different organizations do different types of work through the Internet system. By someone else outside your organization. Outsourcing is called outsourcing. Those who do outsourcing work are called freelancers. Jobs in multimedia, outsourcing sites or online marketplaces are divided into different categories, such as web development, software. Development, networking and information systems, writing and translation, administrative support, design and customer service, sales and marketing business services, etc. It is possible to earn online only if all these tasks are done through the internet system. There are also many other types of work available in the outsourcing world. . Freelancing Freelancing  means working independently without being under a specific person or orga...

What is masternode technology? How does it work?

What is masternode technology? You can download any coin wallet and see it regularly, that is masternode technology. It means that you will become a machine of that network which will continue to see their Blockchain wallet. Dash coin first brought the concept of masternode. * If you masternode in Dash coin, you need to buy 1000 Dash coins and have a high-quality VPS and a dedicated IP. There should be more storage because the wallet will be deposited there. ★ By visiting this website masternode.online you can see masternode related to All coins. Not all VPS supports all types of coins. # Every decentralized Real Enypto currency has its own node or wallet. The wallet which is called the core wallet I wallet has full control over a user. Other people can't see it. Because Blockchain technology is a totally decentralized technology. * If you download the coin wallet and keep some coins in that wallet which is specific, then you will be credited for that coin per transaction. The rewa...

What does Token and ICO mean?

ICO : ICO ➤ Initial coin offering. If something new comes into the market, some offer free tokens to increase the popularity of that coin. Token : Token ➤ Token has no form. Basically the token has no blockchain of its own, it completes transactions using the blockchain of the coin it is based on.

How does cryptocurrency work? How many kypto coins are there in the world?

Cryptocurrency is a type of token currency. Which has no real appearance or form. It exists only in the internet world. Transactions or purchases using it are only possible online and offline impossible. It is stored through certain data. Its entire operation is done in a secure process called cryptography. It is named cryptocurrency after its cryptography. In 2017, the cryptocurrency market suddenly became an emerging market. Cryptocurrency is a peer-to-peer transaction system. And this pair means pair. It does not contain any third party controls. So no one else can know who is transacting this digital or virtual currency with whom from where. But its encrypted ledger keeps all its transactions from being compromised. So there is no need for any third party to validate the transaction. No country or government interferes in the rise of cryptocurrency prices. Or even if someone wants to do it, not all. Therefore, the use of this digital currency is prohibited in many countries of the ...

কম্পিউটার আর্কিটেকচার কি? কম্পিউটার আর্কিটেকচার কয় প্রকার ও কী কী?

কম্পিউটার আর্কিটেকচার (Computer Architecture) কম্পিউটার ইঞ্জিনিয়ারিং-এ কম্পিউটার আর্কিটেকচার হচ্ছে কম্পিউটার সিস্টেমের কনসেপচুয়াল নকশা এবং কম্পিউটারের বেসিক অপারেশনের গঠন বিন্যাস। কম্পিউটার সিস্টেমে যে-সব বৈশিষ্ট্য প্রোগ্রামারের কাছে দৃশ্যমান অথবা প্রোগ্রামের লজিক্যাল এক্সিকিউশনের উপর যে-সব বৈশিষ্ট্যের সরাসরি প্রভাব আছে, তাকে কম্পিউটার আর্কিটেকচার বলে। উদাহরণস্বরূপ বলা যায় আর্কিটেকচারাল বৈশিষ্ট্যের মধ্যে আছে ইনস্ট্রাকশন সেট, বিভিন্ন ডাটাটাইপ রিপ্রেজেন্ট করতে ব্যবহৃত বিটের সংখ্যা, ইনপুট আউটপুট মেকানিজম এবং মেমরি অ্যাড্রেসিং-এর জন্য বিভিন্ন পদ্ধতি । কম্পিউটার আর্কিটেকচারের দুটি ধারা প্রচলিত আছে। একটি হলো হার্ভার্ড আর্কিটেকচার ও অপরটি ভন নিউম্যান বা প্রিন্সটন আর্কিটেকচার। আধুনিক কম্পিউটার আর্কিটেকচার (Modern Computer Architecture) আধুনিক কম্পিউটারের মৌলিক আর্কিটেকচার । হার্ভার্ড আর্কিটেকচার দ্বিতীয় বিশ্বযুদ্ধ চলাকালে হার্ভার্ড বিশ্ববিদ্যালয়ে এই আর্কিটেকচার নিয়ে গবেষণা করা হয়। হাওয়ার্ড আইকেন প্রথম এই আর্কিটেকচার প্রস্তাব করেন। দূরপাল্লার ক্ষেপণাস্ত্র নিয়ন্ত্রণে এই আর্কিটেকচার...

কাউন্টার কাকে বলে? কাউন্টার কত প্রকার? কাউন্টারের ব্যবহারবিধি লিখ?

কাউন্টার (Counter) : যে লজিক সার্কিটের মাধ্যমে এতে প্রযুক্ত পালসের সংখ্যা গণনা করা যায় এবং গণনার ফলাফল বাইনারিতে প্রকাশ করা যায়, তাকে কাউন্টার বলে। সাধারণত ফ্লিপ-ফ্লপ সার্কিট দ্বারা এটি তৈরি করা হয়। কোনো কাউন্টারে যতটি ফ্লিপ-ফ্লপ ব্যবহার করা হবে, একে তত বিটের কাউন্টার হিসেবে ব্যবহার করা যাবে। কাউন্টারের সাহায্যে কম্পিউটারের অভ্যন্তরীণ কার্য সম্পাদন করা যায়। এ ছাড়া কাউন্টার সার্কিট ডিজাইনের মাধ্যমে বিভিন্ন যুক্তিমূলক কাজ করা যায় । উদাহরণস্বরূপ বলা যায়, ধরি একটা হলো রুমের আসন সংখ্যা ১০০টি। এতে এমন এক ধরনের কাউন্টার ব্যবহার করা যায় যা রমে প্রবেশকারী এবং রম পরিত্যাগকারীর সংখ্যা গণনা করে সার্বক্ষণিকভাবে খালি আসনের সংখ্যা বলে দিতে পারে এবং রমের আসন সংখ্যা পূর্ণ হলে তা খালি নেই বলে দিবে। কাউন্টারের ব্যবহার (Application of Counter) : কাউন্টারের ব্যবহার নিম্নরূপ___ (i) কাউন্টারের সাহায্যে কম্পিউটারের অভ্যন্তরীণ কার্য সম্পাদন করা যায়। (ii) কাউন্টার সার্কিট ডিজাইনের মাধ্যমে বিভিন্ন যুক্তিমূলক কাজ করা যায়। যেমন- ডিজিটাল ঘরিতে ব্যবহৃত হয়। (iii) অডিও/ভিডিও সিস্টেমে ব্যবহৃত হয়...

What is the register? How many types of registers and what are they?

Register The register is a FF or memory element group, which works to store digital information together. It stores data in binary system. An FF can store one bit of digital data. The number of FFs needed to store a word depends on the number of bits in that word. For example, a group of 8 FFs is required to store a word of 8 bits. Thus, registers are groups of FFs or memory elements that work together to store digital information. In various digital systems, such as-  (i) Microprocessors of computers  (ii) Arithmetic and logic circuits.  Types of Registers: Registers are divided into different categories according to the type of work. Such as— (i) Temporary registers,  (ii) Flag registers,  (iii) General purpose registers are of 2 types based on providing inputs and outputs, namely—  (i) Serial and  (ii) Parallel. Four types according to data shifting or mode, namely : (i) SISO (ii) SIPO (iii) PISO (iv) PIPO Based on data shifting it is three types,...

How many types of cryptocurrency and what are they?

Types of Cryptocurrencies 5 type of cryptocurrency is: 1.Prement Transaction coin 2.Infrastructure coin 3.Security coin 4.Privacy coin 5.Utility Token 1.Prement Transaction coin: These coins can complete transactions very quickly. These coins can complete the transaction in a few seconds. For example, Ethereum, Litecoin, Zilliqa, Steller is the most common type of crypto currency. This type of currency future is bright because that's it's main transaction currency. Most of the people using this type of currency everyday. 2.Infrastructure coin: Decentralized applications are created on these currencies. And any new ICO in the market such as ethereum, neo, ultrm coin will come to the market using their platform. As new coins will come to the market through them, their future is very bright. Their platform will be used by industries due to which their prices will increase in the future. 3.Security coin : Example polymath coin. Which is the most famous security coin. These security...

What is Hotspot, Wi-Fi, Wi-Max, Bluetooth and how do they work?

Hotspot, Wi-Fi, Wi-Max, Bluetooth Hotspot: Hotspot is a type of wireless network that provides internet connection to mobile computers and devices such as smartphones, PDAs, tablets, netbooks, notebooks or laptops. Currently, the three popular hotspot technologies are – 1. Wi-Fi 2. Wi-Max 3. Bluetooth Wi-Fi: Wi-Fi or wireless fidelity is a popular wireless technology that uses radio waves to connect any electronic device to a high-speed Internet connection or computer network to exchange data. It is technically known as IEEE 802.11b. Wi-Fi technology is relatively faster (11 Mbps) and less expensive than standard Ethernet and other common wired LAN technologies. Thus, the Wi-Fi wireless LAN connects laptop PCs, PDAs, smart phones, tabs and other devices with Wi-Fi modems to the rapidly growing business, public and the planet to easily connect to the Internet and other networks. A faster version (802.11g) with a speed of 54 Mbps promises widespread use of this technology. Features of Wi...

Describe the main memory of the computer?

-- Describe main memory of computer. Computer main memory can be divided into two categories based on data storage and retrieval, namely: 1 RAM (Random Access Memory) 2 ROM (Read Only Memory) RAM: The memory directly connected to the motherboard that can be read and written is called RAM. This memory is a temporary memory. Data is stored in RAM as long as the computer has power. RAM erases all its data as soon as the power supply is turned off. Hence it is called as temporary memory. This memory is activated as soon as the computer is turned on. After the computer is turned on, data received from the receiver is stored in this memory. It is semiconductor and direct access memory. Usually running programs and repeatedly changing information and data are stored in memory. ROM: This part of main memory is permanent, non-volatile and non-destructive. Some programs are inserted into this memory when the computer is manufactured. Even turning off the computer does not delete any information ...

Describe the classification of computer software

Describe the classification of computer software System software is the type of software that helps make the computer hardware usable by the user. This software maintains the coordination of work between the BV units of the computer and efficiently utilizes the computer's capabilities for executing practical programs. System software is developed to suit the nature of computer work. So there are different types of system software for different types of work. Software designed for one type of computer cannot be used on another type of computer unless modified. System software can be mainly divided into three categories, namely -- (i) System management programs or software (ii) System Support Programs or Software (iii) System development programs or software. System Management Software: System management software can be used to manage computer hardware, software, data, and network. The System Management Program consists of the following units, namely-- (i) Operating System (ii) Data...

Describe the different generations of computers.

Briefly describe the different generations of computers The history of computer evolution can be divided into several stages. Each step is called a generation of the computer. There is some disagreement about the computer's population structure. Below is a brief discussion about the various generations. First Generation (1937-58) : The period from 1937 to 1958 is called the first generation. In 1946, two professors at the University of Pennsylvania created a computer named ENIAC (Electronic Numerical Integrator And Calculator). EDSAC (Electronic Delay Storage Automatic Computer) was invented in 1949. In 1951, Remington Rand created a company name computer. A vacuum tube is used in this computer. The UNIVAC-I is considered to be the first commercially produced digital computer. Characteristics of first-generation computers: (i) large in size and volume, (ii) relatively slow processing capacity, (iii) Use of magnetic drum in the electronic circuit as memory, (iv) Use of vacuum tubes,...

Describe the main features of a computer

Describe the main features of a computer A computer is an electronic device that runs on electricity. We use different types of electronic devices in our daily life. But computers have some special features and capabilities compared to other electronic devices. Some of the notable features are: (1) High-Speed: The speed of a computer is like the speed of electricity. Computers work through electrical signals. And so the modern computer takes only 1 second to add 2 (two) crores One of the characteristics of a computer is that it is fast. (2) Correctness: If the computer is provided with correct input data and the correct program, there is 100% assurance about the correctness of the result after processing. Modern computers are proving that humans make mistakes, but computers don't. (3) Accuracy: Computers can perform mathematical operations efficiently and accurately. Computers are used in observational and research work due to two notable features speed and accuracy. (4) Reliabi...