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Computer System Components_1 (Summary (Hardware (Provides input &…
Computer System Components_1
Summary
Software
Applications &
system software
Instructions tell hardware
exactly what tasks to
perform & in what order
Data
Fundamental representation
of facts & observations
Hardware
Provides input & output
Control input, output
& storage components
Processes data by
executing instructions
Communications
Sharing data &
processing among
different systems
Hardware
Storage Devices
Within computer
Removable
CPU
Central Processing Unit
CU
Control Unit
Controls processing
of instructions
Controls movement
of data within the CPU
Interface unit
Moves instructions & data
btwn CPU & other
hardware components
ALU
arithmetic/logic unit
Performs arithmetic &
Boolean logical
claculations
Input/Output devices
Monitor
Mouse
Printer
USB
Keyboard
Memory
-Primary storage
-Working storage
-RAM
Bits, each of which hold a
value of either 0 or 1
(8 bits = 1 byte)
Holds both instructions &
data of a computer program
(stored program concept)
Software
Operating System
I/O
Kernel
Resource scheduling
Program communication
Memory Management
Security
File management
Network Module
API
application program interface
Applications