![Main components of
computer system
£ A typical computer is made up of hardware and software
1. Input devices: keyboard, mouse
2. Output devices: speaker, monitor
3. Secondary storage device: magnetic tapes, optical disk
4. Processor and internal memory devices:
∞ CPU is a one or more circuit board which is made up of discrete
components which interprets and execute commands from
hardware to software.
∞ Internal hard drive is the main memory which stores the
software and data files. Fast data transfer and large memory
capacity.
∞ Random Access Memory(RAM) is an internal chip where data
of running application is stored temporarily. This memory can
be written and read from.
∞ Read Only Memory(ROM) is used to store permanent
memory(NON-VOLATILE). Can only be read but not written.
Contains some coding known as boot file [ Basic input/ output
system(BIOS)]](https://image.slidesharecdn.com/typesandcomponentsofcomputersystem-151024134343-lva1-app6892/85/Types-and-components-of-computer-system-4-320.jpg)
Types and components of computer system
- 1. Components of computer System Hardware and software Main components of computer system Operating system Control devices
- 2. Hardware • The physical parts that make up a computer • Examples: Monitor, Mouse, Keyboard, Speaker, Microphone, Printer, Web cam, Scanner
- 3. Software $ Genreally mean: “ set of instructions that operates the computer” $ Application software: “ programs that enable a user to do specific task”. Example: Word processor, Spreadsheet, Database, Presentation, Web browser, Desktop Publisher, Graphics Program $ System software: “programs that enable hardware to run properly” Example: GUI and CLI
- 4. Main components of computer system £ A typical computer is made up of hardware and software 1. Input devices: keyboard, mouse 2. Output devices: speaker, monitor 3. Secondary storage device: magnetic tapes, optical disk 4. Processor and internal memory devices: ∞ CPU is a one or more circuit board which is made up of discrete components which interprets and execute commands from hardware to software. ∞ Internal hard drive is the main memory which stores the software and data files. Fast data transfer and large memory capacity. ∞ Random Access Memory(RAM) is an internal chip where data of running application is stored temporarily. This memory can be written and read from. ∞ Read Only Memory(ROM) is used to store permanent memory(NON-VOLATILE). Can only be read but not written. Contains some coding known as boot file [ Basic input/ output system(BIOS)]
- 5. Main components of computer system Output devices Input devices Processor and internal memory devices Secondary storage device Key- board mouse monitor speaker Magnet ic tape Optical disk CPU Internal hard drive Random Access Memory (RAM) Read Only Memory (ROM) more circuit board
- 6. Operating system € To enable users to communicate with computer systems. ♫ Controlling the operation of input, output and backing storage device ♫ Supervising the loading, running & storage. ♫ Dealing with errors ♫ Maintaining security of program ♫ Maintaining a computer log ♫ User interface (allowing communication between user and computer) € Command Line Interface(CLI) λ Require to type in instructions in order to choose options λ Must learn commands and slow to have to key in commands λ Direct communication with computer and not restricted to a number of pre-determined option.
- 7. € Graphical User Interface(GUI) ћ Using icons(pictures/symbols) to represent applications. ћ Windows icons menu and pointing device/ WIMP ћ Uses cursor to select icons