CSC101_Saud Bashar_KB Ch.2
Data and program representation
Digital data representation-0s and 1s
Representing numerical data-binary numbering system
Coding systems for text-Based Data- ASCII,EBCDIC, and UNicode
Graphic Data-Bits represent all images data
Audio Data- Represented by sound samples
video data- frames per second
Inside The System Unit- the main case for computer
The Motherboard-I has all the internal and extrernal connections
The Power Supply and Drive Bays- it has batteries in the portable computers
The CPU- The brain of the computer
Processing speed- the measurement of the CPU performance
Word Size
Cache Memory-Fast memory circuits
Bus width, speed and bandwidth
Memory
Random Access Memory
Registers- High speed memory containsintermediate processed data
Read Only Memory- Storage all data and computer content
Flash Memory
Fans, Heat skins, and other cooling components
Expansion Slots, Expansion Cards, and express card modules- usd to improve the computer ability
Buses
Memory bus- architecture bus and recent
Frontside Bus
PCI and PCI express
USB Bus
Fire Wire- developed by apple
Ports and Connectors
Monitor Ports
Network ports
Modem ports
Usb ports
Fire Wire
Keyboard & Mouse ports
SCSI ports
MIDI
IrDA
Flash memory
Game ports
Audio ports
eSATA
How The CPU Works
Typical CPU Components
ALU & FPU
Control Unit
Prefetch Unit
Decode Unit
Registers & internal cache Memory
Bus Interface Unit
The System Clock and the Machine Cycle
Subtopic