What is a metropolitan area network (MAN) A metropolitan area network (MAN) is a network which covers a city or a large university campus. MAN connect users within an area larger than local area network (LAN) but smaller than a wide area network (WAN). MAN is made with a combination of several LAN through point to point connections. MAN usually involves connection of fiber optics wires to boost [...]
Computers exist in our life for quite a long period of time. We use computers and smartphones in our daily life. The computer and other devices we use are much faster than early computers. Supercomputers in 1990 had less processing power than the smartphones we are using today. Technology is changing very fast day by day. There are some tasks that a normal computer cannot perform. Some tasks [...]
What is supercomputer The supercomputer is a computer which has high performance than any other computer. The speed of a supercomputer is calculated in floating points operation per second i.e. FLOPS. The supercomputer can perform bigger tasks than a normal computer can do. These computers work on the basis of parallel processing. Thousands of microprocessors are attached to these computers and they complete any job by parallel processing. [...]
What is mini computer Mini computers are small size computers which have one or two microprocessors attached to it. They are smaller than a mainframe and super computer. Some mini computers are more powerful than an average micro computer. Mini computers are light weight and you can put these computers in your bags or pockets easily. Example of mini computer There are many types of mini computers that [...]
Mini computers are small computer devices which can fit in our bags. They are smaller than normal computers that we use in our office. There are many types of mini computers. Some examples of mini computers are mini desktop PCs like Apple Mac Mini. Other examples are tablets and smartphones that you use in our daily life. Mini computers first came to market in 1960. Many companies start [...]
TinyOS is an open source operating system (OS) specially made for wireless network devices. The devices include Bluetooth, environment sensor devices, and bank security system etc. TinyOS is written in NesC language which is dialect of C language. TinyOS advantages and disadvantages Below are some advantages and disadvantages of tinyOS. Advantages of TinyOS Small in size: The source code of TinyOS is small in size. Due [...]
What is tinyOS TinyOS is an open source operating system used for wireless devices. This operating system (OS) is small in size and consumes low memory. The application programs that run on TinyOS are also small in size as compared to normal OS. Another feature of TinyOS is that it is made for some specific device. Normal OS is multithreaded and consumes high voltage of computer. But tinyOS [...]
What is an embedded system Embedded systems are systems which are dedicated to performing some specific and dedicated tasks. Most of the devices we use today are examples of embedded systems. 98% of microprocessors are made for embedded systems. They are found in the washing machine, AC, mobiles, toys etc. Washing machine microprocessor can only do a specific task and cannot do other tasks. Hardware and software are [...]
What is distributed data processing (DDP) Processing of data that is done online by different interconnected computers is known as distributed data processing. We host our website on the online server. Nowadays cluster hosting is also available in which website data is stored in different clusters (remote computers). When a visitor comes to the website then website pages are loaded from the server which is near to the [...]
Computer multitasking (CMT) “Doing multiple tasks at a time in a computer is called computer multitasking (CMT)”. Multitasking is evolved from multiprogramming and has an old history. In the 1960’s computers were slow. Old computers cannot perform two tasks at a time. To perform one task we had to terminate other task running. In modern operating systems (OS), we can do multiple tasks without terminating another task. Every [...]
