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  Price : $37.12                  BUY NOW Application: Table Application: Laptop English language Standard keyboard: 104 keys Type: Metallic Product description Operation style: Membrane Style: Standard Model number: other Interface type: Usb Packaging: Yes Body brand axis: other Wrist Support: No Product information Item Weight 2.65 pounds Manufacturer WUZHOUAME ASIN B08LGY1SJH Date First Available October 20, 2020 Warranty & Support Product Warranty:  For warranty information about this product, please  click here Feedback

  Computer Hardware:                                                          Hardware are the physical components that make up a computer system. They include all electrical and mechanical devices attached to the computer for the purpose of input , process , storage and output operations . Generally all hardware components are classified as follows. a.        Input devices b.       Output devices c.        CPU d.       Memory a.      Input devices                      ...

Mobile Computers:                                                                     Mobile Computing is a technology that allows processing and transmission of data, voice and video via a computer or any other wireless enabled device without having to be connected to a fixed physical link. Mobile Computers are devices which are used for computing. These devices include portable Laptops, Smartphones, Tablet P'cs and personal digital Assistants.

  Introduction:                           Computer memory is one of the important and compulsory components of every computer. It is the electronic holding place for instructions and data accessed by computer . Computer memory is used to store data or programs on a temporary or permanent basis for use in a computer . Computer memory is divided into two main types: Primary or Main or Internal Memory Secondary or Auxiliary or Backing Storage Memory Primary or Main memory holds instructions and data when a programs executed, while secondary memory holds data and programs not currently in use and provides long-term storage.

 Super computers:                                                                 Super Computer are the most powerful and the most expensive computers designed for scientific, engineering, and business applications. These Computers can process billions to trillions of instructions per second. The usage includes world-wide weather forecasting, weapon research, stock analysis, automobile designing, special effects for movies and used for applications requiring complex mathematical calculations. Supercomputers possess extremely high computing speed, higher capacity for storage, faster primary memory and faster secondary storage as compared to other types of computers. IBM's supercomputer, sequoia, can perform around 16 thousand trillion instructions per second. These computers are used for research and explor...

 Mainframe Computers:                                                                                       Mainframe computers are the second powerful and expensive computer than supercomputers . Mainframes are used mainly by large organization for critical applications , typically bulk data processing such as census, industry and consumer statistics, enterprise resource planning,  and financial transaction processing. These computers have powerful processors and large memories to process large amounts of data at very high speed, such as billions of industries per second (BIPS) .  These computers support many terminals at the same time.                                  ...

 DRAM (Dynamic Random Access Memory):                                                                                                                                                            DRAM is a type of semiconductor memory where the word "Dynamic" indicates that it needs to be periodically refreshed to retain its data. it stores each bit of data in a separate capacitor within an integrated circuit. The capacitor can be either charged or discharged' these two states are taken to represent the two values of a bit, conventionally called 0 and 1. in personal computers DRAMs are used as inte...