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Dear students, welcome to my blog of computer engineering..

Dharamvir Saini

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Fundamentals of computer

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Introduction : The implementation of computers is one of the most noticeable changes in the past few decades. A computer is now a very familiar device and each one of us can recognize the use of computers in various fields. Computers are being used for simple tasks like printing of letters as well as for complex weapon designing work. These intelligent machines are used in railway stations, airports, super stores, banks, manufacturing units and at home. People of all age groups use computers for their different needs. Computers have brought new revolutions in the areas of banking, sales and education. Regardless of the field of working, any person needs to have basic knowledge of computers to excel in his/her respective field. Due to this reason, the knowledge of computers is necessary for everyone. One should be able to understand the operation of computers and to use it in his/her field of working. One must have basic understanding of Internet, WWW and the uses of ...
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IoT Introduction and Characterstics

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IOT (Internet of things) The  Internet of Things  ( IoT ) is the network of physical devices, vehicles, home appliances, and other items embedded with  electronics ,  software ,  sensors ,  actuators , and  connectivity  which enables these things to connect and exchange  data  creating opportunities for more direct integration of the physical world into computer-based systems, resulting in efficiency improvements, economic benefits, and reduced human exertions. The number of IoT devices increased 31% year-over-year to 8.4 billion in the year 2017 [9]  and it is estimated that there will be 30 billion devices by 2020. [10]  The global market value of IoT is projected to reach $7.1 trillion by 2020 IoT involves extending Internet connectivity beyond standard devices, such as desktops, laptops, smartphones and tablets, to any range of traditionally  dumb  or non-internet-enabled physical devices and everyday obje...
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Functions of CPU, Memory and Input /Output Devices

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         CENTRAL PROCESSING UNIT (FUNCTIONAL PARTS AND FUNCTIONS) The central processing unit comes in action when the input has been recorded through input unit. The central processing unit is responsible for actual processing of inputs to generate the output. The central processing unit (CPU) is considered as the brain of the computer. It is also called as Microprocessor. This device converts all the supplied input into output as per the instructions supplied by the user. The CPU of a computer is the device on which the speed and efficiency of the computer mainly depends on. Fig. 1.3 : Central Processing Unit The CPU is divided into arithmetical & logical unit (ALU) and Control Unit (CU). The ALU performs arithmetical and logical calculations and CU supervises the working of ALU. Computer cabinet is not CPU. CPU is fitted inside it. (a)   Control Unit: The control unit acts as sup...
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