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TOPIC 4: INSIDE THE COMPUTER - PROCESSING AND MEMORY - Coggle Diagram
TOPIC 4: INSIDE THE COMPUTER - PROCESSING AND MEMORY
Adapter Card
...enhances functions of a component of a desktop or server system unit and/or provides connections to peripheral devices (sound card and video card)
Expansion Slot
...is a socket on a desktop or server motherboard that can hold an adapter card
With Plug and Play technology, the computer automatically can recognize peripheral devices as you install them
Type
Bluetooth
enables bluetooth connectivity
MIDI
connects to musical instruments
Modem
connects to transmission media, such as cable television lines or phone lines
Network
provides network connections, such as to an Ethernet port
Sound
connects to speakers or a microphone
TV Tuner
allows viewing of digital television broadcasts on a monitor
USB
connects to high-speed USB ports
Video
provides enhanced graphics capabilities, such as accelerated processing or the ability to connect a second monitor
Video Capture
connects to digital video camera
Buses
A bus allows the various devices both inside and attached to the system unit to communicate with one another
data bus
address bus
Word size is the number of bits the processor can interpret and execute at a given time
Types of buses
system bus
backside bus
expansion bus (AGP bus, PCI bus, ISA bus)
Allows processor to communicate with peripherals.
Port and Connectors
Port
Connects external devices to system unit.
Types of Ports
serial port
transmits one bit of data at a time
connects slow-speed devices, such as mouse, keyboard, modem
parallel port
connects devices that can transfer more than one bit at a time, such as a printer
USB port
can connect up to 127 different peripherals together with a single connector type
can be used to connect keyboards, mice, game controllers, printers, scanners, digital cameras and removable media drives, just to name a few
special-purpose port
allow users to attach specialized peripherals (digital video cameras, color printers, scanners and disk drives) or transmit data to wireless devices
Connector
Joins cable to peripheral.
Both available in one of two genders: male and female
Power Supply and Batteries
The power supply or laptop AC adapter converts the wall outlet AC power into DC power
Mobile computers and devices can run using either a power supply or batteries
Batteries typically are rechargeable lithium-ion batteries
Bay
Open area inside system unit used to install additional equipment
Drive bays typically hold disk drives