THE COMPUTER ARCHITECTURE
INTRODUCTION TO C.A.
WHAT'S C.A.?
C.A. refers to the design and composition of a computer. It encompasses the hardware's components, instruction set, and interconnection of important elements in the case.
PRICIPLES OF THE C.A.
Modularity
A system is devided by subsystems or MODULES that can intercact with each other
Abstraction
Abstraction because the process is formed by bit, that are sequences of 0 and 1, so numbers are abstract things
Hierarchical design
The systems are composed by level, one level depends on the previous.
C.A. EVOLUTION
In the past computers were formed by single-core processors that could develop one process at a time. In the next years, after some studies and discoveries, we were able to insert many cores in one computer that could develop some process in same time.
HARDWARE AND SOFTWARE
HARDWARE
Include physical components that are:
Input devices
With input devices we can send signal to pc
Output devices
With output devices we receive signal of different type from computer
Storage
Data are put on the storage
CPU
(Central process unity)
This unity develope every process on pc
SOFTWARE
Software is formed by set of instructons that directs hardware to do some tasks for develop process
Is formed by:
Operating system
Application software