Do the subsystems of large computer processes and programs still have significance when broken down into their component parts? What advantages does the system get from being split in this manner?

in nodejs ,how could i make a "creeate account "page ,and save the account into a "account "json ? when i  click the "create account "button ,it will automatically generate an 8-digit account . 1 "chequing"and 1 "saving " i click "chequing "will create a chequing account .saveing ,will create a saving account .     which i have 2 radio button , accoun chequing and saving . choose one will make a account ,and save it to "accpunts "json . i have made a hbs file ,but i cant do it in the server to fit them var express = require('express');var exphbs = require('express-handlebars');var app = express();//app.engine('.hbs', exphbs({extname: '.hbs'}));//app.set('view engine', '.hbs');app.engine('hbs', exphbs({defaultLayout: false, extname:'.hbs',}));const bodyParser = require("body-parser");const fs = require("fs");var createError = require("http-errors");const passport = require("passport");var path = require("path");const session = require("express-session");var cookieParser =…

Is it advantageous to divide large-scale computer processes and programs into subsystems? Is there any benefit to rationally disassembling this system?

In our opinion, Flynn's taxonomy needs to be expanded by one more level in order to be fully functional. What are some of the qualities that distinguish more advanced computers distinct from their counterparts that have a lower level of sophistication?

The challenge of addressing the problems that arise from computer operations lies in the limited capacity of its processing power to perform tasks beyond numerical manipulation and storage. What alternative approaches have been attempted to surmount these challenges?