Basic computer composition

A: The basic composition of computer hardware

1: Host (cpu+ memory)

2:I/O (input or output devices) do not have a simple input or output device, all computer equipment (peripherals) are input or output devices! such as external memory.

Two: the concept of software

1: Software (can be expressed with instructions and data). These sequences of instructions are called "programs", and computers are electronic devices that automate the programs that people have written beforehand.

2: File:

① Composition: The file consists of the filename and the main contents of the file!

② classification:

A: executable (consisting of instructions and data)//workshop (with lathes and processed raw materials)

B: Non-executable file (composed of pure data)//"Processing raw materials" provided for executable files

3: links to files and software

① a software is usually made up of multiple files, and a software must have at least 1 executables and a minimum of 0 non-executable files.

② software must be transferred into the memory before execution! Ram+rom

Basic computer composition