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1.1 Computer Hardware, 1.5 Communication hardware, 1.2 Computer components…
1.1 Computer Hardware
Input devices
Keyboard
Mic
Mouse
Camera
QR Code reader
Output devices
Monitor
Speaker
Projector
Printer
Plotter
Communication devices
Modem
network card
sound card
video card
HUB
1.5 Communication hardware
network hub
connects all devices
switch
recieves packets
forwards them
router
Forwards the sent packets through networks
1.2 Computer components
components
Proccessor
brain of computer
Carries out 1 instruction at a time
Power supply
Powers all components
Motherboard
links all components
printed circuit
Wires and Buses
Storage
Primary
ROM
RAM
Registers
Secondary
Flash drive
cloud
optical drive
solid state
Computer ports
Serial
USB
HDMI
Display port
SAT
Ethernet
1.4 Connectivity
Copper Wires
Existing network
slower
Degeneration
interferenece
Types
Shielded twisted
twisted
TCP
Fibre cables
uses Light
Faster
Thinner than strands of hair
types
Bluetooth
Wi-Fi
laser network
Infared
microwave
1.6 Hardware troubleshooting
Faults
Error messages
Device name and number
Date
Symptoms
Investigating
Record steps taken
Tools
event viewer
Self testing
ping test
1.7 Units of measurement
Binary
Kibi
Mebi
Gibi
Tebi
Pebi
Decimal
Kilo
Mega
Giga
Tera
Peta
1.3 Computer systems
Types
Desktop
Tower
Laptop
MAC
Hybrid
Stay in 1 location
Tablet
Portable
Touchscreen
Smart phone
Portable
Applications
education
Games
Work
Embedded
Microwave
Fridge
Uses firmware which is built into the product
Car
Mainframe
Supercomputers
higher proccessing power
Farming cryptocurrencies