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IPOS: Input, Processing, Output and storage

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Lucy Harrison

on 8 January 2014

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Transcript of IPOS: Input, Processing, Output and storage

IPOS: Input, Processing, Output and storage

By Jemima,Yasmine and Lucy

Processing and Storage
Input devices are devices that provide information and data to the computer. In a computer, information enters through the input devices.
There are many input devices such as:
Future Input devices
Many people have predicted different future devices. There could be lots of new input devices from tracking eye movement to voice control devices. The touch screen technology has emerged from 2010 to 2013.
You need storage for many things such as photos, music, work, apps, data. You also need storage for word and other programs. You need storage to hold the internet.
What Storage will we have in the future?
In future we could have iPads with 100's - 1000's of GB storage on them. We might have tiny chips that yet have 1000's of GB storage. There could be bluetooth devices with lots of storage on them and they connect with laptops, cars etc.
storage devices
USB Flash Drive:

What is an Output device?
From what I understand, anything that has the ability to transfer data away from your hard drive is an output device. And example of an output device would be a printer. Some devices can be both input and output devices.
Output Devices In The Future
Output Devices

Computer keyboards are used to put data into a computer, to act as a mechanical lever. Pressing a key puts a character code into the computer. It is used for typing letters and numbers along with some special characters.
A mouse is a pointing devices that is used for pointing objects on the monitor. A mouse is moved on a smooth surface to control the movement of the pointer on the monitor.
A scanner is used to convert text or an image to an electronic representation which can be viewed on a monitor. Basically a piece of written text can be scanned and then come onto the screen.
A joystick is an input device that helps playing computer or video games, it has one or more buttons on it.
RAM (Random Access Memory) is where data is stored that's being accessed by the CPU. More RAM usually means a faster computer. This is, your computers short time memory, which temporarily stores important data or information while the computer is working.
The CPU is a computer processing unit. CPU is when a piece of data is given to the processor. The processor decodes and executes it. It processes instructions that it gathers from decoding the code in programs and other files. A CPU has four primary functions: fetch, decode, execute, and writeback.

What is a RAM?
Fetch Execute Cycle
The CPU retrieves data and passes it on, reads the codes, it finds what it is and it decodes the information. Based on the instructions it is given, the CPU can then do one of three things:

1) Using its Arithmetic Logic Unit (ALU), the CPU can calculate extremely complicated mathematical functions;
2) Move data from one memory location to another;
3) Jump to different addresses in the program based on decisions made by the CPU itself.
The diagram above shows the setup of an extremely simple microprocessor capable of performing these actions.

Many flash drives are expensive, these share many of
the same benefits, this is a very similar way to share data.
It is very fast and easy to use. However it is some are very dodgy and clear your computer with it data. You need to make sure when you invest in a flash drive that you stay clear of the cheap and tacky ones!

floppy disk:
A Floppy Disk is not very commonly used any more. They were used to store data, they were one of the first way to store data. They were very reliable however the couldn't store a tone of data like today. they could hold 1.44mb what isn't that much.
A printer prints whatever is on the monitor onto paper. Printers can print words, numbers, or pictures.
A monitor is the screen on which words, numbers, and graphics can be seem. The monitor is the most common output device.
A speaker gives you sound output from your computer. Some speakers are built into the computer and some are separate.
There are many output devices have already been created such as anything that has the ability to transfer data. Any output device that holds data maybe become quicker to transfer in the future.
a CD is storage device that holds music files, photos, and is a very helpful device and can transfer data from it to the computer and the other way round.
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