original: Some computers can boot up from flash drives.
simplifications: Some computers can start up from flash drives. Flash drives can boot some computers. Some computers can start from small, portable drives. Some computers can turn on from flash drives. Flash drives can be used to start some computers. Some computers can boot from flash drives. Some computers can be started from flash drives. Some computers can be started up from a flash drive. Some computers can start up from flash drives. Many computers can boot from flash drives.