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computers
Advantages and disadvantages of virtual memory
2 min
by Junaid Rehman 2 years ago8 months ago

What is virtual memory Virtual memory is the part of a hard drive and is extra memory that works with a combination of RAM (Random Access Memory). RAM is also known as the main memory or physical memory. The speed of the main memory is very fast as compared to virtual memory. Suppose you are...
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computers
What is virtual memory in operating system (OS)
2 min
by Junaid Rehman 2 years ago8 months ago

There are two main storage memories in the computer system. One is RAM (Random access memory) also known as main memory other is secondary memory also known as a hard drive. All the computer programs are stored in the main memory while running. The CPU (central processing unit) or processor get programs data from the...
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computers
What is physical topology with example
1 min
by Junaid Rehman 2 years ago8 months ago

Physical topology means how network devices are physically connected. This includes the physical connection of hubs, switches, routers, cables etc. in the network. This type of topology explains how the network devices are plugged into each other. Types of physical topology Some types of physical topology are:- Star Topology: In star topology network components are...
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computers
Advantages and disadvantages of tablet PC
4 min
by Junaid Rehman 2 years ago8 months ago

Tablet PC is a touch screen device which is larger than a smartphone and smaller than a notebook. Tablets have a processor, graphics card, sound card and battery. Tablets are mostly used by kids, students and old age people. Kids play games, listen to songs and study on tablets. Students use tablets for doing homework,...
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computers
Advantages and disadvantages of Windows 11
3 min
by Junaid Rehman 3 years ago8 months ago

Microsoft Windows 11 was released on October 4, 2021. The previous version of the Microsoft operating system was Windows 10 which was released in 2015. In Windows 11 we can see many improvements like Xbox gaming is improved, running android apps become possible, a new start menu, rounded corner Windows and much more. Today I...
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computers
Advantages and disadvantages of Microsoft PowerPoint
6 min
by Junaid Rehman 3 years ago8 months ago

Microsoft PowerPoint was developed by Robert Gaskins and Dennis Austin in the company named Forethought, Inc. The previous name of PowerPoint was Presenter and it was available for Mac Computers. Microsoft bought the Presenter for $14 million in 1987 and renamed it PowerPoint. Version 1.0 of PowerPoint came with text, images and other objects. Version...
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Mobiles
Difference between android and iOS
1 min
by Junaid Rehman 3 years ago8 months ago

iOS is the mobile operating system developed by Apple Company. This operating system runs on iPhones and iPods. iOS was developed by using assembly language, Objective-C, C, C++, and swift. Android is the mobile operating system developed by Google. This operating system runs on smartphones and tablets. Android was developed by using Java, C, C++...
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computers
What is touch user interface (TUI) with example
1 min
by Junaid Rehman 3 years ago8 months ago

A touch user interface is a type of interaction between a user and a computer-based device. This interaction is by doing a physical touch on the screen and the computer responds to this touch interaction. The first touch screen phone was launched in 1992 by IBM and was named IBM Simon. iPhone was the latest...
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computers
Advantages and disadvantages of transaction processing system (TPS)
2 min
by Junaid Rehman 3 years ago8 months ago

What is transaction processing system (TPS) A transaction processing system or TPS is a type of information system in which transactional data is stored, modified and retrieved. Take an example of a bank in which a transaction of money is done between bank and customer. The customer gives a check to the bank and the...
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computers
What are components of information system
2 min
by Junaid Rehman 3 years ago8 months ago

An information system is the travel of data from one location to another. If you have an internet-connected to your computer then you can transfer data from your computer to another computer within seconds. In old days we don’t have a network facility by which we can move data from one computer to other. With...
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