This powerpoint presentation helps you to understand the characterstics of computer in brief....nd in very easy language...!! enjoy nd send me ur views....
This powerpoint presentation helps you to understand the characterstics of computer in brief....nd in very easy language...!! enjoy nd send me ur views....
Mobile Computing and its Advantages, Disadvantages and ApplicationsDigitalThinkerHelp
Mobile computing is generic technology that help to transmit of data other wireless terminals and its various Advantages, Disadvantages and Applications.
http://digitalthinkerhelp.com/mobile-computing
What is hardware, which input devices are most frequently used nowadays, why are some good to use, while others are outdated? This presentation is an answer to all this questions and it also has a small part about sensors (what are sensors and what types are there)
Mobile Computing and its Advantages, Disadvantages and ApplicationsDigitalThinkerHelp
Mobile computing is generic technology that help to transmit of data other wireless terminals and its various Advantages, Disadvantages and Applications.
http://digitalthinkerhelp.com/mobile-computing
What is hardware, which input devices are most frequently used nowadays, why are some good to use, while others are outdated? This presentation is an answer to all this questions and it also has a small part about sensors (what are sensors and what types are there)
A presentation that explains computer models and simulation in an easy-to-understand way. It also gives examples of their usage, and application to the real world.
Software for Embedded Systems is computer software that is part of a piece of equipment or system. The software is 'embedded' in the equipment, and is an integral part of the functioning of the equipment. Unlike a piece of 'application' software, such as a word processor, spreadsheet, or accounting application, embedded software runs on a specific piece of hardware with a dedicated purpose, rather than on a general purpose computer system.
SAP BASIS ONLINE TRAINING MATERIAL by Keylabskeylabstraining
We provide SAP BASIS Online Training, SAP Security online Training, SAP Security with GRC online Training, SAP Netweaver Administration online Training,SAP Solution manager online Training, SAP Basis Training in Hyderabad, SAP BASIS training in Banglore, SAP Security Training in Hyderabad, SAP Security Training in Bangalore,Online training for all SAP modules.We are providing SAP Technical, SAP Functional and SAP Techno-functional Modules.
1. What is IT infrastructure and what are its components2.What ar.pdfexpressionnoveltiesk
1. What is IT infrastructure and what are its components?
2.What are the stages and technology drivers of IT infrastructure evolution?
3. What are the current trends in computer hardware platforms? Describe the evolving mobile
platform, grid computing, and cloud computing
4. What are the current trends in software platforms? Define and describe open source software
and Linux and explain their business benefits.
5.What are the challenges of managing IT infrastructure and management solutions? Name and
describe the management challenges posed by IT infrastructure
Solution
1.IT infrastructure is defined as a shared technology resources which is sum of all free and
licensed system software,third party services,owned or leased equipment that provide the
platform for the firm’s specific information system applications. IT infrastructure includes
hardware, software, and services that are shared across the entire firm.
2.The stages of IT infrastructure evolutions is began on the year 1930 and still it is continuing.
Electronic Accounting Machine-(1930-1950)->This era is began to replace Human effort from
accounting work.Machine started doing accounting and finance work effectivly and much more
errorfree than Human.
General-Purpose mainframe and minicomputer Era(1959-continuing)->This era has been started
by IBM, And it still persist in the position of supplying mainframe computer.Mainframe
computers are centralized computing with networks of terminal concentrated in the computing
department.In the mean while early models contained proprietary software and data.Mainframe
comuters able to process a wide variety of software and data ,It could able to process huge
amounts of data and transmission.
Personal Computer Era(1980 to Present)->Personal computers make a boom in both Home and
corporate sector .Personal computer makers like Microsoft and Apple take forward the evolution
by providing Desktops and Laptops which doubles the User effort.
Client/Server Era(1983 to Present)->as the desktop and laptop personal computers became more
powerful and cheaper, businesses began using them to replace mini-computers and some
mainframe computers by networking them together. Think of an octopus, with the body
representing the server and the tentacles representing the clients. At the heart of every network is
a server. It can be a mainframe, midrange, minicomputer, workstation, or a souped-up personal
computer.The client computer is the node on the network that users need to access and process
transactions and data through the network. Rather than one server trying to do it all, each server
is assigned a specific task on an application server.
Enterprise Internet computing Era(1992 to Present)->Perhaps no other era has seen the explosive
growth in functionality and popularity as this era. The problems created by proprietary, closed
systems are being solved by the standards and open-source software created in this era. The
promise of truly integrated hardware, softwar.
Sniffing is the process of monitoring and capturing all the packets passing through a given network using sniffing tools. It is a form of “tapping phone wires” and get to know about the conversation. It is also called wiretapping applied to the computer networks.
There is so much possibility that if a set of enterprise switch ports is open, then one of their employees can sniff the whole traffic of the network. Anyone in the same physical location can plug into the network using Ethernet cable or connect wirelessly to that network and sniff the total traffic.
In other words, Sniffing allows you to see all sorts of traffic, both protected and unprotected. In the right conditions and with the right protocols in place, an attacking party may be able to gather information that can be used for further attacks or to cause other issues for the network or system owner.
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This presentation contains info about all types of LAN (local area network). It also discusses their advantages and disadvantages, and where and how they are used.
Storage devices are a evolving nowadays, especially because our storage appetites are growing every second. The presentation talks about various types of storage, why it is used, and basically, the advantages and disadvantages of the storage discussed.
SAP Sapphire 2024 - ASUG301 building better apps with SAP Fiori.pdfPeter Spielvogel
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The range and scope of computer applications
1. The range and scope ofThe range and scope of
computer applicationscomputer applications
1.1. IntroductionIntroduction
2.2. Software and hardwareSoftware and hardware
3.3. Types of applicationTypes of application
4.4. Expert systemsExpert systems
2. IntroductionIntroduction
What is Information Technology???What is Information Technology???
What is a computer???What is a computer???
Why do we study IT?Why do we study IT?
Why do we need a computer??Why do we need a computer??
3. All computer systems havve to haveAll computer systems havve to have
following basic parts:following basic parts:
1. Input1. Input
2. Output2. Output
3. Processing3. Processing
4. Storage4. Storage
Whenever u see a computer try to think inWhenever u see a computer try to think in
terms of these four parts...terms of these four parts...
Try to think of data that is used and whatTry to think of data that is used and what
the system needs in order to do what it isthe system needs in order to do what it is
meant to do.meant to do.
4. Software and hardwareSoftware and hardware
SoftwareSoftware ComputerComputer instructionsinstructions oror datadata..
Written coded commands that tell a computer what tasksWritten coded commands that tell a computer what tasks
to perform. For example, Word, PhotoShop, Pictureto perform. For example, Word, PhotoShop, Picture
Easy, and PhotoDeluxe are software programsEasy, and PhotoDeluxe are software programs
Anything that can beAnything that can be storedstored electronically is software.electronically is software.
The programs and instructions which direct a computer.The programs and instructions which direct a computer.
TheThe storagestorage devicesdevices and display devices areand display devices are hardwarehardware..
The distinction between software and hardware isThe distinction between software and hardware is
sometimes confusing because they are so integrallysometimes confusing because they are so integrally
linked.linked.
Clearly, when you purchase a program, you are buyingClearly, when you purchase a program, you are buying
software. But to buy the software, you need to buy thesoftware. But to buy the software, you need to buy the
diskdisk (hardware) on which the software is recorded.(hardware) on which the software is recorded.
5. Software is often divided into twoSoftware is often divided into two
categories:categories:
systems softwaresystems software :: Includes theIncludes the
operating systemoperating system and all theand all the utilitiesutilities thatthat
enable the computer to function.enable the computer to function.
applications softwareapplications software :: IncludesIncludes
programs that do real work for users. Forprograms that do real work for users. For
example, word processors, spreadsheets,example, word processors, spreadsheets,
and database management systems falland database management systems fall
under the category of applicationsunder the category of applications
software.software.
6. HardwareHardware
The physical components of a computerThe physical components of a computer
system-the computer, plotters, printers,system-the computer, plotters, printers,
terminals, digitizers, and so on.terminals, digitizers, and so on.
The physical equipment of a computerThe physical equipment of a computer
system, including the central processingsystem, including the central processing
unit, data-storage devices, terminals andunit, data-storage devices, terminals and
printers.printers.
Physical, tangible component of aPhysical, tangible component of a
computer.computer.
7. What is a network???What is a network???
What about internet???What about internet???
Do You have a modem at home???Do You have a modem at home???
For what is the modem used for???For what is the modem used for???
What is LAN and What is WAN???What is LAN and What is WAN???
8. When two or more computers areWhen two or more computers are
connected to each other it is calledconnected to each other it is called
network.network.
Internet is global network, consisting out ofInternet is global network, consisting out of
millions of computers.millions of computers.
9. ModemModem
Modem is special piece of equipment thatModem is special piece of equipment that
allows computers to link to the internetallows computers to link to the internet
through the telephone system.through the telephone system.
Short for modulator/demodulator. AShort for modulator/demodulator. A
communications device that converts onecommunications device that converts one
form of a signal to another that is suitableform of a signal to another that is suitable
for transmission over communicationfor transmission over communication
circuits, typically from digital to analog andcircuits, typically from digital to analog and
then from analog to digital.then from analog to digital.
10. LANLAN
A computer network limited to the immediate area,A computer network limited to the immediate area,
usually the same building or floor of a building.usually the same building or floor of a building.
Communications network connecting computers by wire,Communications network connecting computers by wire,
cable, or fiber optics link. Usually serves parts of ancable, or fiber optics link. Usually serves parts of an
organization located close to one another, generally inorganization located close to one another, generally in
the same building or within 2 miles of one another.the same building or within 2 miles of one another.
Allows users to share software, hardware and data.Allows users to share software, hardware and data.
is a data network used to connect nodes that areis a data network used to connect nodes that are
geographically close, usually within the same building. Ingeographically close, usually within the same building. In
a wider view of a local area network, multiple local areaa wider view of a local area network, multiple local area
networks are interconnected in a geographically compactnetworks are interconnected in a geographically compact
area (such as a university campus), usually by attachingarea (such as a university campus), usually by attaching
the LANs to a higher-speed local backbone.the LANs to a higher-speed local backbone.
11. WANWAN
A wide area network (WAN) is a geographicallyA wide area network (WAN) is a geographically
dispersed telecommunications network. Thedispersed telecommunications network. The
term distinguishes a broader telecommunicationterm distinguishes a broader telecommunication
structure from a local area network. A wide areastructure from a local area network. A wide area
network may be privately owned or rented, butnetwork may be privately owned or rented, but
the term usually connotes the inclusion of publicthe term usually connotes the inclusion of public
(shared user) networks. An intermediate form of(shared user) networks. An intermediate form of
network in terms of geography is a metropolitannetwork in terms of geography is a metropolitan
area network (MAN).area network (MAN).
Group of computers located geographicallyGroup of computers located geographically
apart, usually belonging to a single company orapart, usually belonging to a single company or
organisation, connected together usingorganisation, connected together using
dedicated lines or by satellite to simulate a localdedicated lines or by satellite to simulate a local
network.network.
12. Types of applicationTypes of application
Computers are found everywhere aroundComputers are found everywhere around
us.us.
Of some u are even not aware of.Of some u are even not aware of.
They range from enormously large once toThey range from enormously large once to
tiny microprocessors.tiny microprocessors.
Micro processors are programmed to doMicro processors are programmed to do
just one thing such as control the washingjust one thing such as control the washing
machine.machine.
13. Expert systemsExpert systems
Special type of computer systems that stores allSpecial type of computer systems that stores all
the knowledge of an expert in a particularthe knowledge of an expert in a particular
subject so that people can ask it questions.subject so that people can ask it questions.
If the system can remember things and chooseIf the system can remember things and choose
better option then it is said to have artificialbetter option then it is said to have artificial
intelligence.intelligence.
Knowledge in an expert system does not changeKnowledge in an expert system does not change
A system with artificial intelligence is able toA system with artificial intelligence is able to
learn.learn.