Console is the keyboard and display Terminal window, which is a software emulation of a teletype (TTY). The use of 0,1,2 for stdin/stdout/stderr is just a shell convention […]

Text Terminal: hardware like electronic keyboards and displays, through which the user can interact with a computer. A terminal emulator, connected to a virtual terminal, identified by a tty file, inside […]

Standard Streams In computer programming, standard streams are interconnected input and output communication channels between a process and it environments. The three input/out connections are called standard input, […]

I like to understand how things work (together) by asking myself questions. So let’s get started. Question 1: What is input/output? Input/output(I/O) is the process of copying data […]

From I/O to main memory: 1) Reading from keyboard: USB controller->I/O bridge->Register File->I/O bridge->Main Memory 2) Loading from disk: Disk controller->I/O bridge->Main Memory 3) Reading from network: Network […]

Reference: Dynamic Memory Allocation and Virtual Memory https://www.cprogramming.com/tutorial/virtual_memory_and_heaps.html