Sunday, December 28, 2014

Short note on computer architecture.

1.Computer System

            All of the components of a computer system can be summarized with the simple equations.



COMPUTER SYSTEM = HARDWARE + SOFTWARE + HUMANWARE
            ∙           Hardware=Internal Devices + Peripheral Devices
All physical parts of the computer (or everything that we can touch) are known as Hardware
            ∙           Software = Programs:
                        Software gives “intelligence” to the computer.
            ∙           Humanware = User

2.Hardware




            The physical parts of the computers, which can be seen and touched is known as Hardware. It is just the mechanical parts of the Computers. All the devices attached to the computer system like: Mouse, Keyboards, Monitor, CPU, Hard Disk are hardware. It includes all the components used to make the computers. It also includes the cables, connectors and computer peripherals.

3.Software




            Software, simply are the computer programs. The instructions given to the computer in the form of a program is called software. Software is eh set of programs, which are used for different purpose. All the programs used in computer to perform specific task is called software.

4.Types of software