An improved computer system is implemented with an integrated circuit computer having integrated circuit (IC) memories and using a keyboard input and sound output to communicate with an operator. Provision is made for a dynamic memory with a memory refresh arrangement. Memory refresh is synchronized...http://www.google.com/patents/US5615380?utm_source=gb-gplus-sharePatent US5615380 - Integrated circuit computer system having a keyboard input and a sound output
Integrated circuit computer system having a keyboard input and a sound output
