systemBoot

local pullEvent = os.pullEvent
local flag = true

local c1 = peripheral.wrap("computer_1")
local c2 = peripheral.wrap("computer_2")
local c3 = peripheral.wrap("computer_4")

local input

function boot()

  c1.turnOn()
  c2.turnOn()
  c3.turnOn()

end

function readInput()

  input = read()

  if input == "boot" then
    boot()
    print("Booting system")
    sleep(1)
  end

  if input == "adminmodegogo" then
    flag = false
    os.pullEvent = pullEvent
    print("Hold Ctrl + T to break")
  end

  if input == "shutdownmeow" then
    print("Shutting down")
    c1.shutdown()
    c2.shutdown()
    c3.shutdown()
    sleep(1)
    os.shutdown()
  end

end

function start()

  if flag then
    term.clear()
    term.setCursorPos(1,1)
    print("Type boot to start system")
  end

  if flag then
    os.pullEvent = os.pullEventRaw
  end

end

while true do

  start()
  readInput()

end