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Ch.15 Computer Systems - Coggle Diagram
Ch.15 Computer Systems
Classification of computers
Personal computers
Type of personal computer
Desktop computers
placed on a desk.
Widely used in homes, offices and schools.
several expansion for adding expansion cards.
Sound card
TV tune card
Display card
Network interface card
different types of ports for connecting external devices
line in
microphone
enterent port
speaker
parallel port
VGA port
Serial port
USB port
PS/Z port
Workstation
powerful desktop computer for specialists including engineers, computer graphic designers and financial traders.
high resolution monitor
faster CPU
More memory
accelerated display card
high storage capacity hard disk
notebook computers (laptop)
small and lightweight
Designed for people on the move
handhold computers
palm or personal digital assistant
network computer
low cost personal computer designed for business network spps
Single User
handling data input, process, storage and output.
mainframe computer
large and powerful
brain of computer network
large scale database system and server side apps
strict control of temperature humidity and security access
super computer
physical size
number of processor
processor speed
memory size
storage capacity
input output devices
cost
number of user
application
Characteristics of computer systems
Single user system
Processes request
Personal computer
Handhold computer devices
Smart phones
Multi user system
Two or more users
Network servers and mainframe computer
Time sharing
Processes the request
Completes the processes
Swritch to next user
Batch processing systems
Batch jobs
Fully utillzed
Idling time
Time consuming jobs
Payroll printing system school report printing
system scheduled system backup
Real time system
Processes data immediately after entered
Powerful with large memory and secondary storage capacity
Software and hardware for fault recovery and system backup
ATM
A medical system for surgery
computerr aided manufacturing
video conferencing systems
aerospace systems
military defence systems
Online interactive systems
Respond to Incoming requests
An online job searching system
An online flight check in system
search engine
online email system
Parallel processing system
Handle computation
Increase the speed of data processing
Rum multiple tasks simultaneously
Run a single job consisting of many parallel processes
Process with high degree of pipelining of
making use of several ALUs simultaneously
Run sequentially
Distributed processing system
High speed network
Resources can be managed more efficiently
Provides much better computation performance
More fault tolerant
Cost efficiently
Scalable
Overhead of commtcations between the network computers