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Bus
Set of wires connecting multiple devices together
Computer
Any device that can manipulate data
Peripheral Devices
Any (non-computational) device connected to a computer. E.g printer, speaker
Pulse Code Modulation
Technique to convert analog data to digital signal.
What is Method of ADC
Sampling
Quantization.
Binary encoding.
Line or block coding.
Sampling rate
Number of samples per second.
Sampling interval
Ts s
Quantization
A method of assigning integer values in a specific range to sampled instances.
Binary encoding
Each quantized samples is translated into equivalent binary codes .
Line encoding
The binary digits/information inside the ADC device is then transformed to a digital signal so it can be transmitted.
Pulse Code Demodulation
Modulation process in reverse.
Pulse Amplitude Modulation (PAM)
Uses sampled pulses to encode an analogue waveform
Pulse Width Modulation
Create an analog type signal from a constant digital type signal.
Duty Cycle
The duty cycle is how long the output is 'on' for in a given period.
Mean Value
Average perceived value
Duty Cycle * Maximum Value
Mean Amplitude
Duty Cycle * Maximum Amplitude
Max amplitude
256
ON Time
Duty Cycle x Period
Off Time
Period - ON Time
Mean
DutyCycle x Amplitude
Average signal amplitude
10
RAM slot
Hold and connect RAM modules
Runs apps efficently
Expands memory capacity
Can do multitasking
BIOS chip
Basic input/output system
Lets you access and set up your computer system at the most basic level
PCI-e slot
Connect various internal components in the computer system
CMOS backup battery
Retain system settings, boot systems and BIOS configurations
SATA Socket
Transmit data between the storage device and the computer
CPU socket
Is a processer socket
Connection allows a computer processor to connect to a motherboard
24 pin power socket
The main power cable which connects the motherboard to the power supply
USB port on Backplane
Connect USB device, keyboards, and mice
Period
Time for 1 cycle
RAM
Random access memory
Stores and opens files
Runs programs
Part of operating system
ROM
Read only Memory
Non violate
BIOS
Chip soldered into motherboard