00275nam a2200109 a 450000500170000008200150001710000190003224500410005126000290009230000230012163000210014420251202164222.0  a006.7bDEB  aDebry, Roger K  aCommunicationg with display terminal  aNew YorkbMcGraw Hillc0  a252 p.c24 cm.bHB  aComputer science