Upload
augustus-wheeler
View
229
Download
2
Tags:
Embed Size (px)
Citation preview
COMPUTER PLATFORMSCOMPUTER PLATFORMS 11
Computer PlatformsComputer PlatformsWeek 3Week 3
Types of computersTypes of computers
Computer PlatformsComputer Platforms 22
AimsAims
Distinguish between the different types of Distinguish between the different types of computers that are available and what computers that are available and what they are used for.they are used for.
Know about supercomputers and who uses them
COMPUTER PLATFORMSCOMPUTER PLATFORMS 33
Computer are everywhere?Computer are everywhere?
Affects every aspect of our lives. Affects every aspect of our lives. Process the data which makes a modern society Process the data which makes a modern society function.function.Embedded in a huge range of devices.Embedded in a huge range of devices.Microcomputers bring computing directly to Microcomputers bring computing directly to almost everyone.almost everyone.Opening up new ways of communication.Opening up new ways of communication.Breaking down political and national boundaries.Breaking down political and national boundaries.
COMPUTER PLATFORMSCOMPUTER PLATFORMS 44
What do all computers have in What do all computers have in common?common?
A computer responds to a set of well A computer responds to a set of well defined instructionsdefined instructionsThey can execute a pre-recorded list of They can execute a pre-recorded list of instructions (a program). instructions (a program). They can store and retrieve dataThey can store and retrieve dataComputers can perform complex and Computers can perform complex and repetitive procedures quickly to the same repetitive procedures quickly to the same standardstandard
HNC COMPUTING - COMPUTER HNC COMPUTING - COMPUTER PLATFORMSPLATFORMS 55
Different types of computerDifferent types of computer
The main types of computer are mainframe, desktop, laptop, PDA and wearable computers, such as mobile phones, embedded computers.
Each type of computer is suitable for a different purpose.
Using the internet find out about each type of computer and find out where it would be used.
COMPUTER PLATFORMSCOMPUTER PLATFORMS 66
Different types of computerDifferent types of computer
Mainframe (“enterprise servers”)Mainframe (“enterprise servers”)
Large-scale computers executing millions of Large-scale computers executing millions of instructions per second. Used to process very instructions per second. Used to process very large volumes of data; multi-user (used to run large volumes of data; multi-user (used to run networks) require special accommodation and networks) require special accommodation and facilities . facilities .
Users: banks, airlines.Users: banks, airlines.
COMPUTER PLATFORMSCOMPUTER PLATFORMS 77
Different types of computerDifferent types of computer
Desktop (Microcomputer or person computer)Desktop (Microcomputer or person computer) Can be used at home or within the workplace, if Can be used at home or within the workplace, if
un-un- networked it is known as a stand-alone PC, if networked it is known as a stand-alone PC, if however it is networked then it is known as a however it is networked then it is known as a workstation or a client workstation or a client
Users: anyone requiring modest computing Users: anyone requiring modest computing facilities. facilities.
Laptop Laptop A portable personal computer with the facilities of a A portable personal computer with the facilities of a desktop personal computer but generally are harder desktop personal computer but generally are harder to upgradeto upgradeUsers: anyone requiring modest computing facilities Users: anyone requiring modest computing facilities on the moveon the move
COMPUTER PLATFORMSCOMPUTER PLATFORMS 88
Different types of computerDifferent types of computer
PDAPDA
A small hand-held computer used as an A small hand-held computer used as an electronic personal organiser. It can input data electronic personal organiser. It can input data using a pen, recognise hand-writing, run using a pen, recognise hand-writing, run personal organisational tools and has personal organisational tools and has communications capabilities.communications capabilities.
Users: People on the move with a busy Users: People on the move with a busy schedule, used by teachers, doctors, business schedule, used by teachers, doctors, business managersmanagers
COMPUTER PLATFORMSCOMPUTER PLATFORMS 99
Different types of computerDifferent types of computer
Wearable computersWearable computers
Wearable computers are being built into bands that log physical data from the wearer – they can be used to monitor athletes, patients or people who want to lose weight. Wearable computers can also be attached to police and fire fighters, sending messages back when heart rates suggest stress or danger.
COMPUTER PLATFORMSCOMPUTER PLATFORMS 1010
Different types of computerDifferent types of computer
Embedded computersEmbedded computers
You could say that any device that has a microprocessor in it is a computer, and that would include washing machines and microwave ovens.
COMPUTER PLATFORMSCOMPUTER PLATFORMS 1111
Embedded computersEmbedded computers
As technology moves forward, you can start to see that mobile phones can connect to the
Internet, a PDA can make calls - all of these devices are starting to become one.
Have ago at the PowerPoint quiz.
COMPUTER PLATFORMSCOMPUTER PLATFORMS 1212
SupercomputersSupercomputers
The world’s fastest and most powerful computers are known as supercomputers.
The speed of a computer is measured in flops (floating point operations).
Computer developers are racing to produce the
first petaflop computer. It would be over a billion
times faster than a standard computer and could
perform 1,000,000,000,000,000
(one thousand trillion) operations per second
COMPUTER PLATFORMSCOMPUTER PLATFORMS 1313
Supercomputers Cont.Supercomputers Cont.
Who would need such a computer?– A large food company used a supercomputer to find a
way to stop its potato crisps being blown off the assembly line.
– Supercomputers provide the power behind large-scale climate change models. These computers look at millions of pieces of data, from temperature to trends in CO2 emission, to provide predictions of the future climate.
– Users: Nasa, Met office
Can you think of any more?