ICT Info 1

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What is an 'ergonomic' product?
Something made for prolonged use of a product, main examples are keyboards and mouses.
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What is RSI?
RSI stands for repetitive strain injury .
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Name a health and safety hazard to do with liquids
No liquids near computers.
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Why do chairs need to be adjustable?
So employees are able to work in comfort.
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what is the ideal amount of space from the computer screen to your eyes?
The ideal amount is 20-24 inches away
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Should you lay papers flat on the table?
No they should be in a document holder.
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How can a employer help employees feet that don't touch the floor?
The employee can ask for a footrest so the feet are touching something
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What's another way of stopping RSI happening in employees wrists?
Another way of stopping RSI is to have a wrist support.
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What is the ideal vertical angle for the arm to hang at?
90
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Should the wrist and forearms be in line?
Yes when typing.
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What are the four main types of data?
Text, Still images, sound and numbers.
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What are input devices?
Input devices are devices that allow data to be entered into a computer.
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What is a concept keyboard?
A keyboard that has shortcuts so it's more efficient.
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What is a touch sensitive device
A device that uses touch to input data.
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What is a PDA?
PDA stands for personal digital assistance.
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What is speak recognition?
Involves the user speaking into a microphone. And is then compared to a dictionary of sounds.
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What is automated Input?
Data that can be stored magnetically or on paper that is scanned and interpreted by software.
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How do magnetic card readers work?
Can be used with a magnetic *****, they are easily read. However they can't store much data. As well it's easily scratch able.
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How do smart cards work?
These cards have a computer chip built in meaning that it can store more data than a magnetic *****.
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What is RFID?
Radio Frequency ID. A way of tracking objects by attaching a transmitter.
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What is a scanner?
Used to turn paper based pictures or documents into digital images.
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What is OMR?
Senses the position of marks on data capture forms such as multiple choice exam papers or lottery entry sheets.
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What is OCR?
Uses a scanner and specialist software to turn paper-based text into computer challenges.
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What do bar-code readers do?
Bar code readers work by a pattern of black and white lines. And this gives information on a product.
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What is MICR?
MICR stands for Magnetic Ink character Recognition. This is where magnetic ink is used to print character shaped to ANSI standards which can be read and used to direct cheques and other negotiable documents to their proper financial institutions.
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What is sound input?
When a sound is made and fed into a microphone it creates an analogue signal. The signal is made up of constantly changing voltages
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Name some devices that can do video inputs?
Webcams and Digital cameras
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Name 3 types of monitors?
CRT, TFT and LCD.
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What is resolution?
The number of dots that make up an image on screen or on paper.
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Name 3 types of large displays?
Digital projectors, Interactive whiteboards and Plasma screens
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Name 2 small displays?
Mobile phone screens and PDAs
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What are all the different types of printers?
Laser printer, Inkjet, Multi-functional, dot matrix, plotters, photo printing and professional printing.
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Name a benefit of a laser printer.
High quality print outs. Better than ink-jet or dot matrix.
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Name a Drawback of laser printers.
Most expensive type of printer to buy, especially colour lasers
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Name another benefit of Laser printers.
Fast printouts, faster than dot matrix.
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Another disadvantage of laser printers.
Toner is more expensive than ink jet cartridges
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What is a advantage of inkjet printers.
Have a cheaper initial cost.
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Another advantage of inkjet printers
Small size.
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What is a disadvantage of inkjet printers
Can be used to create little volumes of documents only because inkjet printer is slower than laser one.
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Another disadvantage of inkjet printers.
Expensive cartridge cost
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Advantages of multi-functional printers.
Saves space as it is multiple appliances in one.
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Another advantage of multi-functional printers.
Saving money.
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A drawback to multi-functional printers.
Lack of quality.`
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Another drawback of multi-functional printers
If it breaks then all the features are gone.
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Advantage of a dot matrix printer.
Cheap and easily available .
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Another advantage of a dot matrix printer.
They can make carbon copies, which non-impact printers cant.
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A drawback to a dot matrix printer.
The output has a low resolution
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Another drawback to a dot matrix printer.
Creates a large amount of noise.
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A advantage of a plotter
Same quality as a expert drawing them.
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Another advantage of a plotter.
Larger sizes of paper can be used than most printers can manage
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A disadvantage of a plotter.
Slow than printers because lines a draw separately
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Another disadvantage of a plotter.
Often more expensive than printers.
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Why does data need to be stored?
Data maybe be transferred through devices.
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What is file compression?
Reducing the file size by converting it in a different format.
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What is backing storage?
Stores data and program files within the computer.
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What is RAM
RAM is Random Access Memory. Main memory where all locations can be read and written to equally quickly.
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What is ROM
Read Only Memory. Memory that can't be changed.
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What is BIOS
Basic input/output System.
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What is removable media.
Used to store data so that it can be taken away from the computer, such as floppy discs, CDs and flash memory.
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Why are floppy discs a bad backup medium.
Hold very little data and there are better alternatives.
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What is DAT tape.
Small in size but hold a lot of data. Often used to backup servers.
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Benefit of online storage.
Able to access when and where ever you want.
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Disadvantage of online storage.
Easy to get unauthorised access.
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Advantages of a USB
Portable and cheap
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What is application software.
Application software is the software with which users process text, numbers, still and moving images and sounds.
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Most application software includes what features.
Choice of fonts, font sizes and colours, aligning text to the left, middle or right
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What is validation?
Validation is a computer check on information to make sure it is in the correct column, this can include a presence check or format check.
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Whats the difference between a bitmap software and vector software.
Bitmap software is less quality. And vector is high quality and is able to stretch images without it distorting.
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What is validation?
Validation is computer based check, its a form of checking.
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what is verification?
Human based check, another form of checking.
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4 different types of data?
Text, Numbers, Images and Sound.
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What is a Gantt Chart?
A time based grid that shows tasks and resources to accomplish a job.
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What are the 3 names given to tested data?
Erroneous, Boundary and Normal.
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Other cards in this set

Card 2

Front

What is RSI?

Back

RSI stands for repetitive strain injury .

Card 3

Front

Name a health and safety hazard to do with liquids

Back

Preview of the front of card 3

Card 4

Front

Why do chairs need to be adjustable?

Back

Preview of the front of card 4

Card 5

Front

what is the ideal amount of space from the computer screen to your eyes?

Back

Preview of the front of card 5
View more cards

Comments

MR MEESEEKS

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OwenHoughton

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DIS IS GUD, TNKX FOR IT

Kip up the gud werk

Jayboo

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  • I dislike this revision material, also, you are far too young to be studying AS levels young man
0161 Chicken in a wrap

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Dont hurt my feels

Jayboo

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i retract my last statement, i now realise that it is not that bad

lol jk it's awful X

0161 Chicken in a wrap

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kk bb.

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