Computer Architecture
- Computer Architecture is the field of study of selecting and interconnecting hardware components to create components to create computer that satisfy functional performance and cost goals.
- It refers to those attributes of the computer system that are visible to a programmer and have a direct effect on the execution of a program.
- It concerns with internal hardware and software that determines the performance and capability of a computer.
System Unit:
- The system unit is a case that contains electronic components, buses, processor, memory, expansion cards and most of the storage devices.
Components of System unit:
- Processor
- Expansion card (sound cards, modem cards, Video card etc)
- ports and connectors
- storage devices
- memory module
Motherboard: Is the main circuit board which contains chips, integrated circuits and transistors. It connect the different components of system unit.
Processor: Is the brain of computer it processes the data and controls the computer a computer may have more than one processor.
Central Processing Unit
A central processing unit also referred to as a central processing unit is the hardware within a computer system which carries out the instructions of a computer program by performing the basic arithmetical, logical and input/output operations of the system. The term has been in use in the computer industry at least since the early 1960s. The form, design and implementation of CPUs have changed over the course of their history, but their fundamental operation remains much the same.
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