PowOS System startup (minecraft openComputers)

local fs = require("filesystem")
local term = require("term")
local comp = require("component")
local pc = require("computer")
local event = require("event")
local text = require("text")
local gpu = comp.gpu

gpu.setBackground(0x000000)
gpu.setForeground(0xffffff)
term.setCursor(1,1)
gpu.setResolution(80,25)
term.clear()
print("Starting up PowOS...")
os.sleep(0.5)
os.execute("/PowOS/system/SignIn.lua")