"STAY HOME--STAY SAFE" FIGHT AGAINST COVID-19
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computer and its types

Features of computer Speed: Although one takes time to make a small calculation, the computer can make many calculations in less than a second, this speed is provided by the processor, the speed of the computer is measured in Hz., The intensity of work of the computer it is measured in seconds per second, per millisecond, per second, per nanosecond. Accuracy: doing a job without errors means completing any future job with complete precision is the second characteristic of a computer, the computer never makes mistakes, the computer always gives the correct result, because the computer is ours Performs a task only by following the specified instructions by the computer created a program, if the result given by the computer is wrong, then Area may be a bug in the program which are designed by human Automation: When a post-instruction is given to the computer until the task is completed, it continues to work automatically without stopping, for example, when the computer prompts
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computer memory basics

computer memory What is computer memory? The CPU is called the brain of a computer, but while the human brain does a lot of work and protects our memories, the CPU only does arithmetic and logical calculations. Processes input data, process data cannot be protected because process data must now be stored in a safe place so that this task can be performed using computer memory (computer memory). Computer memory is divided into many small parts that we call cells. Each cell has a unique address or path. Whenever you save or save a file on a computer, it is saved in a cell - There are two types of computer memory : Variable - It is also called primary storage, also called primary storage. It is in direct contact with the CPU and its data and instructions are used quickly and directly by the CPU. This is called a variable memory because this memory cannot store any data permanently. Example - RAM Non-volatile - This is known as secondary storage. It is used to permanently stor
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History of computer

History of computer Computer tech study:- History of computer It was difficult for humans to calculate from the start. Humans can only calculate or calculate to a limited extent without machines. In order to be able to perform many calculations, humans have to rely on the machine to meet this need. Built computers, that is, to calculate. Abacus - 3000 years ago Abacus was developed by Chinese scientists about 3,000 years ago. In a rectangular frame were wooden boards on iron bars, which were calculated or calculated from top to bottom. That said, it was the first computer to run without electricity. In fact, it was up to you to do this job. Antikythera system - 2000 years ago Antikythera was originally an astronomical calculator used to track solar and lunar eclipses in ancient Greece. Antikythera is approximately 2000 years old and was discovered by scientists in 1901 on a ship that was completely destroyed on the island of Antikythera. Acquired in a chronically dilapida
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