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computers
What is transaction processing system (TPS) with example
1 min
by Junaid Rehman 5 days ago5 days ago
Definition of transaction “Transaction is a business activity between buyer and seller to exchange an asset of payment.” For example, you go to the shop and buy something and give money to the shopkeeper. This is a transaction between you and the shopkeeper. The transaction is of two types:- Internal transaction External transaction The transaction...
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computers
Advantages and disadvantages of Ubuntu operating system
5 min
by Junaid Rehman 1 week ago1 week ago
Ubuntu is a Linux based operating system. It is maintained and owned by a UK based company named Canonical Ltd. This operating system is available to use in smartphones, desktop computers and servers. It comes with pre-installed apps including LibreOffice. The version names of Ubuntu are based on the year it becomes released. For example,...
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computer beginners
What is difference between file and folder
1 min
by Junaid Rehman 2 weeks ago2 weeks ago
Definition of file “A file is a storage unit where relative data is stored. A file can be an image, video, executable file, system file or application file.” Files can be stored in secondary devices e.g. hard drive, flash drive, SSD drive, DVD etc. A file can have any size depending upon the storage device...
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computers
What is domain name server (DNS) with example
2 min
by Junaid Rehman 2 weeks ago2 weeks ago
What is DNS DNS stands for domain name server or domain name system. It is a type of system in which a domain name is converted to an IP address. The example of a domain name is www.google.com and the example of IP address is 192.168.1.1. DNS is a type of phonebook in which all...
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computers
Advantages and disadvantages of adaptive user interface
2 min
by Junaid Rehman 2 weeks ago2 weeks ago
What is an adaptive user interface “An adaptive user interface is a type of user interface that changes its look and feel according to the type of user”. Suppose an adult comes to the app then app user interface chances according to adult age. If a teenage user uses the same app then a different...
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computers
What are types of computer buses
1 min
by Junaid Rehman 3 weeks ago3 weeks ago
Definition of computer bus A computer bus is a type of small wire embedded on a motherboard. It behaves as a communication media between CPU, memory and other devices of the computer. Computer bus transfers bits internally and externally. By internal transfer, I mean between processor and cache and between CPU and memory. And by...
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computers
What are advantages and disadvantages of spreadsheets
3 min
by Junaid Rehman 3 weeks ago3 weeks ago
In old days we use paper to draw a table of rows and columns and type data in it. If we do mistakes in typing then it is difficult to fix it. Also, there is a limit to how much data we can insert on a single paper. To solve this issue we start using...
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computers
Difference between interactive and non interactive system
1 min
by Junaid Rehman 4 weeks ago4 weeks ago
What is an interactive system The interaction between a computer and a user is known as a computer interactive system. In smartphones, tablets we also see interaction with different games, and apps. There are some types of interactive systems which are graphical user systems, command-line systems, and menu-driven systems. Nowadays touch screen LEDs are also...
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computers
What is wearable computer with example
3 min
by Junaid Rehman 1 month ago4 weeks ago
Definition of wearable computer “A wearable computer is a portable computer that is worn on the body and is mostly used for health purposes”. They can also be used as hands-free e.g. they can get signals from muscles, voice, brain, head position, lips, eye position and these gestures are to control other devices and computers....
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computers
What are advantages and disadvantages of desktop computer
4 min
by Junaid Rehman 1 month ago1 month ago
Definition of computer A computer is an electronic device that processes, calculates, and operates on the instructions given by software and hardware. A user gives input to the computer from the keyboard or mouse and the CPU of the computer processes the input and shows output on the screen or monitor. The computer has two...
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