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What is hardware?
Hardware is the physical devices that make up a computer system
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What is software?
Software are the computer programs and instructions that allow the user to tell the hardware what to do
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Advantage and disadvantage of a personal computer:
Adv) Very powerful, Disadv) Not portable
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Advantage and disadvantages of netbooks:
Adv) Smaller than a laptop- more portable, Disadv) Less powerful than a laptop + less storage
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Advantage and disadvantages of laptops:
Adv) Portable, Disadv) Run on batteries + can be expensive
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Advantage and disadvantages of PDAs:
Adv) Handheld- portable, Disadv) Least powerful + replaced by smartphones
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Name the 7 main components of a computer:
Processor (the brain), Motherboard (central circuit borard), RAM Memory (Volatile memory- temporary ), Sound card (outputs sound out of a speaker), Graphics Card (processed the images), Optical Drive (CD/DVD drive),Hard drive (backing storage device)
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What is an Input Device?
The hardware device used to enter data into an ICT system
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10 examples of Input Devices:
Keyboard, Mouse, Microphone, Touchpad, Remote Control, Scanner, Digital Camera, Touch screen, Webcam, Heat/sound sensors
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Specialist Input Devices: What are OCRs and where are they used?
Optical Character Reader. Recognises letters and numbers and processes it into a text document. Might be used to edit handwritten notes on a computer.
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Specialist Input Devices: What are OMRs and where are they used?
Optical Mark Reader. Looks for where marks or crosses appear on the page. Might be used to mark multiple choice exams or lottery tickets
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Specialist Input Devices: What are Barcode Readers and where are they used?
They use light to read the bars printed on products to get ID numbers. Might be used in supermarket checkouts
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Advantages [1] and Disadvantages [1] of OCRs
A) Faster than typing with a keyboard D) Handwritting may be difficult to read
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Other cards in this set

Card 2

Front

What is software?

Back

Software are the computer programs and instructions that allow the user to tell the hardware what to do

Card 3

Front

Advantage and disadvantage of a personal computer:

Back

Preview of the front of card 3

Card 4

Front

Advantage and disadvantages of netbooks:

Back

Preview of the front of card 4

Card 5

Front

Advantage and disadvantages of laptops:

Back

Preview of the front of card 5
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