The left is the von Neumann architecture (called such because it was first defined by John von Neumann in 1945)
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A computer consists of 2 sections:
- Motherboard
- Input/Output devices (e.g., mouse, keyboard, disks, monitor, printer)
Data is transmitted between the two sections accordingly.
Motherboard
The motherboard in a computer acts like its heart.
- Northbridge connects to the CPU, Clock Generator, memory and Southbridge
- Southbridge connects to the I/O peripherals, Northbridge and BIOS
- CPU and memory are inter-connected by the system bus made up of 3 buses (address bus, data bus and control bus)
- Bus inside a computer = a group of electrical wires that are used to transmit similar information
- transmit the ID information of a device
(= address/identifier) - transmit information between devices
(= data/information) - transmit commands to devices
(= control/command)
- transmit the ID information of a device
Peripheral devices (a.k.a.: Input/Output (I/O) peripheral devices)
- Input devices (e.g., mouse, key board, scanner, disks…)
- Enables human users to enter data into the computer (= machine)
- The data will be stored inside the computer in such a way that the computer can use it effectively
- Output devices (e.g., terminal, printer, disks, …)
- Enables the computer to show data stored inside the computer to a human user in a “humanly” way
- Enables the computer to show data stored inside the computer to a human user in a “humanly” way
- Peripheral devices are auxiliary devices that allow users to:
- Enter inputs into the computer
- Obtain outputs from the computer
Reference
- Functional/logical structure of the computer. (n.d.). Retrieved July 22, 2021, from http://www.mathcs.emory.edu/~cheung/Courses/255/Syl-ARM/4-intro/logical-view.html
- ASUS P5AD2-E Motherboard. (n.d.). Retrieved July 20, 2021, from https://www.computerhope.com/cdn/motherboard.jpg
- Northbridge (computing). (2021, June 08). Retrieved July 22, 2021, from https://en.wikipedia.org/wiki/Northbridge_(computing)#/media/File:Motherboard_diagram.svgA typical north/southbridge layout
- Structure of the computer memory (RAM). (n.d.). Retrieved July 22, 2021, from http://www.mathcs.emory.edu/~cheung/Courses/255/Syl-ARM/4-intro/memory1.html