Common Mistakes - IT

Networks

• A network is a group (2 or more) of linked devices with a shared connection.
• We create networks to access shared files, programmes, internet connection and peripherals.
• A peripheral is a piece of hardware which can be attached/connected to a computer to make it more useful/able to do more. Eg. a mouse, keyboard, printer, scanner - an accessory.
• Games consoles peripherals include: speakers, headphones, webcam, controller.
• Output - sends something out of a device (eg speakers give out sound, monitors give out light)
• Input - something goes into a device (e.g. scan a document in)

Methods of Connection

• Wired
• Ethernet cable - connect to a network including the internet
• USB cable
• HDMI cable
• DVI cable
• Lightning
• VGA
• Firewire, thunderbolt
• Wireless
• 2 main methods
• WiFi
• Bluetooth
• Infrared

Wired connection

• Positives
• Faster
• More secure
• Negatives
• Cables: trip hazard, health/safety, cost involved (e.g. connection points), technical know-how required
• Limited to number of connection points

Wireless connection

• Positives
• Can connect from anywhere within range of the router
• Multiple connections
• No cabling cost/trip hazard
• Negatives
• Other electronic devices can interfere with the signal
• Signal can be blocked by thick walls
• Gets weaker with more distance from router