Types of computers, kusum dubey
- 3. The types of computers range from the Hybrid to the Analog types. The computers you come across in the daily course of your day range from laptops, palmtops and towers, to desktop computers, to name a few. But the very word "computers" reminds one of the desktop computers used in offices or homes. Different categories of computes have been devised in keeping with our varied needs. The Types Of Computers:Analog and Hybrid (classification based on operational principle) Analog Computers : The analog computer is almost an extinct type of computer these days. It is different from a digital computer in respect that it can perform numerous mathematical operations simultaneously. It is also unique in terms of operation as it utilizes continuous variables for the purpose of mathematical computation. It utilizes mechanical, hydraulic, or electrical energy or operation. Hybrid computers : These types of computers are, as the name suggests, a combination of both Analog and Digital computers. The Digital computers which work on the principle of binary digit system of "0" and "1" can give very precise results. But the problem is that they are too slow and incapable of large scale mathematical operation. In the hybrid types of computers the Digital counterparts convert the analog signals to perform Robotics and Process control.
- 6. 2.TheMicrocomputer:Thesearethemostfrequentlyusedcomputersbetterknownbythenameof "Personalcomputers".Thisisthetypeofcomputermeantforpublicuse.OtherthanDesktopComputer thechoicerangesasfollows: PersonalDigitalComputer TabletPC Towers WorkStations Laptops HandHeldComputer
- 9. A brief time line of the development of supercomputers has been given as follows : 1960s : Seymour Cray of Control Data Corporation (CDC) launches the Supercomputer systems. 1970s : Cray Research is founded by Seymour Cray after he leaves Control Data Corporation (CDC). Most supercomputers were meant for running vector processor. 1985-1990 : Cray's model of supercomputer takes over the market. Today, supercomputers are designed by such companies as HP, IBM and of course, Cray Inc. Supercomputer systems are now becoming almost the same as laptop computers and desktop systems.
- 10. Before the 1970s, supercomputers were mostly run on scalar process principle. But in order to improve its efficiency a number of new technologies were developed such as : Liquid Cooling Striped Disks (RAID) Parallel File systems Non-uniform memory access (NUMA) Vector Processing ,
- 13. Hybrid computers are computers that exhibit features of analog computers and digital computers. The digital component normally serves as the controller and provides logical operations, while the analog component normally serves as a solver ofdifferential equations. The HRS-100 was a prominent example in the 1970s. Late in the 20th century, hybrids dwindled with the increasing capabilities of digital computers including digital signal processors
- 14. Hybrid computers are computers that exhibit features of analog computers and digital computers. The digital component normally serves as the controller and provides logical operations, while the analog component normally serves as a solver ofdifferential equations. The HRS-100 was a prominent example in the 1970s. Late in the 20th century, hybrids dwindled with the increasing capabilities of digital computers including digital signal processors Hybrid computers should be distinguished from hybrid systems. The latter may be no more than a digital computer equipped with an analog-to-digital converter at the input and/or a digital-to-analog converter at the output, to convert analog signals for ordinary digital signal processing, and conversely, e.g., for driving physical control systems, such as servomechanisms.