8$13$-$1$3$0$First PC os$DOS$ $2$2$2$Open source unix$LINUX$ $3$3$5$Read only memory$ROM$ $6$0$7$Processor$CPU$ $9$2$9$8 bits$BYTE$ $10$5$10$Memory measured by$RAM$ $11$4$12$Startup process$BOOT$ $|$1$3$0$Hardware __$DRIVER$ $4$5$5$__board, the core of any computer$MOTHER$ $5$0$6$Home computer$PC$ $7$2$7$Universal connector$USB$ $8$7$7$Prepare new disk$FORMAT$ $