COMPUTERCOMPUTER Computer stands for common oriental Computer stands for common oriental

machine particularly used in machine particularly used in technology education research. technology education research. computer invented by Charles computer invented by Charles Babbage. It is an electronic machine Babbage. It is an electronic machine device which can bring use for store device which can bring use for store the data by doing some mathematic the data by doing some mathematic and logical operation and desired and logical operation and desired output. computer show the acquired output. computer show the acquired result, high speed and more result, high speed and more delignce.There are three device used delignce.There are three device used in computer one is input device, in computer one is input device, storage device and output storage device and output device.some of the basic natural device.some of the basic natural language that we use language that we use english,hindi,oria etc These are the english,hindi,oria etc These are the languages used to communicate languages used to communicate among varies categories of among varies categories of persons.But how we shall persons.But how we shall communicate with our computer.our communicate with our computer.our computer doen’t understand any of computer doen’t understand any of these natural language.our computer these natural language.our computer only knows binary language that is ( 0 only knows binary language that is ( 0 1). 1).

Characteristics of computerCharacteristics of computer

i) Speedi) Speedii) Reliabilityii) Reliabilityiii) Storage capacityiii) Storage capacityiv) Increase Productivityiv) Increase Productivityv) Accuracyv) Accuracyvi) Versatility vi) Versatility vii) Communicationvii) Communicationviii) Diligenceviii) Diligence

CLASSIFICATION OF CLASSIFICATION OF COMPUTERCOMPUTER

Analog computerAnalog computer Digital computerDigital computer Hybrid computerHybrid computer

TYPES OF TYPES OF COMPUTERCOMPUTER

DESKTOP COMPUTER:-DESKTOP COMPUTER:-Desktop computer is a Desktop computer is a home computer.It is used home computer.It is used in the in the school,institude,rallway school,institude,rallway reservation,airline,companreservation,airline,company etc.y etc.

LAPTOP COMPUTERLAPTOP COMPUTER

A A laptoplaptop is a is a personal computerpersonal computer designed for designed for mobile usemobile use and and small and light enough to sit on a small and light enough to sit on a person's person's laplap while in use. while in use.[1][1] A A laptop integrates most of the laptop integrates most of the typical componentstypical components of a desktop of a desktop computer, including a computer, including a displaydisplay, a , a keyboardkeyboard, a pointing device (a , a pointing device (a touchpadtouchpad, also known as a , also known as a trackpad, and/or a trackpad, and/or a pointing stickpointing stick), ), speakers, and often including a speakers, and often including a battery, into a single small and battery, into a single small and light unit. The light unit. The rechargeable batteryrechargeable battery (if present) (if present) is charged from an is charged from an AC adapterAC adapter and typically stores enough and typically stores enough energy to run the laptop for three energy to run the laptop for three to five hours in its initial state, to five hours in its initial state, depending on the configuration depending on the configuration and power management of the and power management of the computercomputer

MICRO COMPUTERMICRO COMPUTER

MICROCOMPUTER:-MICROCOMPUTER:-Microcomputer is at Microcomputer is at lowest end of the lowest end of the computer range in computer range in terms of speed and terms of speed and store capacity. Its cup store capacity. Its cup is a microprocessor. is a microprocessor. The first The first microcomputers were microcomputers were built of 8 bit built of 8 bit microprocessor chip. microprocessor chip. Example of Example of microcomputers are microcomputers are IBMPC,PC-AT.IBMPC,PC-AT.

MINICOMPUTERMINICOMPUTER

MINICOMPUTER:-Mini MINICOMPUTER:-Mini computer is designed to computer is designed to support more than one user support more than one user at a time.It process large at a time.It process large storage capacityand storage capacityand operates at a higher speed. operates at a higher speed. The mini computer is used The mini computer is used in multi-user system in in multi-user system in which varies users can work which varies users can work at the same time. This type at the same time. This type of computers is generally of computers is generally used for processing large used for processing large volume of data in an volume of data in an organization.There are also organization.There are also used as serves in local area used as serves in local area networks(LAN).Example of networks(LAN).Example of minicomputer is-PGP-11. minicomputer is-PGP-11.

NOOTBOOK NOOTBOOK COMPUTERCOMPUTER

A notebook computer that A notebook computer that weighs in a range from five weighs in a range from five to seven pounds. The term to seven pounds. The term originated when laptops originated when laptops were routinely more than were routinely more than 10 pounds, and those that 10 pounds, and those that became lighter were became lighter were placed in a special placed in a special "notebook" category. In "notebook" category. In practice, notebook practice, notebook computer and laptop computer and laptop computer are synonymous. computer are synonymous. Portable computers that Portable computers that weigh less than four weigh less than four pounds may be called a pounds may be called a "subnotebook" or "mini "subnotebook" or "mini laptoplaptop

DIGITAL DIARYDIGITAL DIARY

Digital diariesDigital diaries are are electronic organizers electronic organizers capable of storing hundreds capable of storing hundreds or thousands of memo, or thousands of memo, address, and schedule address, and schedule records. They were produced records. They were produced by Casio in the early and mid by Casio in the early and mid 1990s, but have since been 1990s, but have since been entirely superseded by entirely superseded by Mobile Phones and PDA's.Mobile Phones and PDA's.

Since their debut, Casio Since their debut, Casio digital diaries hosted a digital diaries hosted a common set of features. common set of features. Some models had extra Some models had extra features, while other ones, features, while other ones, especially the earlier especially the earlier models, lacked some of models, lacked some of themthem

PALAMTOP-PALAMTOP-COMPUTERCOMPUTER

PALAMTOP:-PALAMTOP:-A A Handheld Handheld PCPC, or , or H/PCH/PC for short, is a for short, is a term for a computer built term for a computer built around a form factor around a form factor which is smaller than any which is smaller than any standard laptop standard laptop computer. It is sometimes computer. It is sometimes referred to as a referred to as a PalmtopPalmtop. . The first handheld device The first handheld device compatible with desktop compatible with desktop IBM personal computers IBM personal computers of the time was the Atari of the time was the Atari Portfolio of 1989Portfolio of 1989

MAINFRAME-MAINFRAME-COMPUTERCOMPUTER

MAINFRAME:-Mainframe is MAINFRAME:-Mainframe is another form of computer another form of computer system, that is generally system, that is generally more powerful than a more powerful than a typical mini computer. typical mini computer. Mainframe themselves Mainframe themselves may very widely in cost may very widely in cost and capacity. They are and capacity. They are used in large organizations used in large organizations for large scale jobs. They for large scale jobs. They are also used as controlling are also used as controlling nodes in wide area nodes in wide area networks WAN). Example networks WAN). Example of mainframes are of mainframes are DEC,ICE,ANDIBM-40.DEC,ICE,ANDIBM-40.

SUPERCOMPUTERSUPERCOMPUTER

SUPERCOMPUTER:-At the end SUPERCOMPUTER:-At the end of the size and capability of the size and capability scale are the supercomputers. scale are the supercomputers. This systems are the largest, This systems are the largest, fastest and the most fastest and the most expensive computers in the expensive computers in the world. They are used for world. They are used for complex scientific and complex scientific and defiance applications. super defiance applications. super computers are mainly being computers are mainly being used for whether for casting, used for whether for casting, biomedical resech,remote biomedical resech,remote senging,aircraf design and senging,aircraf design and other areas of science and other areas of science and technology. Example of super technology. Example of super computers are-computers are-CRAYYMP,CRAY2,NECSX-CRAYYMP,CRAY2,NECSX-3,CRAYXMP AND PRAM from 3,CRAYXMP AND PRAM from India.India.