Simple Ruby client/server communication

server.rb

require 'socket'
require 'win32/sound' #gem install win32-sound
require 'bigdecimal'
require 'bigdecimal/math'
include BigMath
include Win32

server = TCPServer.new("127.0.0.1",9090)
request = ""
bytest  = ""
why = Array.new(11)
why = ["Because 41", "Because God wanted so", "Ch Sai approved it", "Because Destiny disagreed",
       "Because Love Failure..!", "Because it's RED", "Because she is not accepted", "Because Sai doesn't have ....!",
       "Because She is beautiful"]
loop {
Thread.start(server.accept) do |client|
	while true do 
     request = client.recv(512).chomp
     puts "#{request} coming to #{client.peeraddr[2]}: #{client.peeraddr[0]} from #{client.peeraddr[3]}:#{client.peeraddr[1]}"
     case  request
     when "%time"
     	  client.write("#{Time.now}\r")
     when "%hastalavista"
     	  client.write("See ya later..!")
     	  client.close
     	  server.shutown([how=2])
     	  server.close
     	  return 0 
     when "%pie"
          client.write("I heard you want some pie..... Here you are some pie: \r\n pi= #{PI(41)}\r")
     when "%nyan"
     	  client.write("Enjoy the music\r")
     	  sound.play('nyan.wav')
     when "%why"
     	  client.write("#{why[rand(11).to_i]}\r")
     when /\?$/
     	  client.write("41 \r")
     when "%Showtime"
     	  File.open("Terminator2.jpg", "rb") do |inp1|
            while line = inp1.gets
               bytest += line
            end
            client.send(bytest,0)
            inp1.close
     	  end
     	 else
     		client.write("Can you elaborate on that ?\r")
        end
    end
end
}