Ruth Handler Club children's television show, Mattel invested heavily in television advertising. The TV commercials for the Barbie doll paid off and Barbie rocketed Mattel and the Handlers to fame and fortune. Subsequently, they would add a boyfriend for Barbie named Ken, after the Handlers' son, and many other "friends and family" to Barbie's world. Handler was diagnosed with breast cancer in 1970. She had a modified radical mastectomy, which was often used at the time to combat the disease, and because of difficulties in finding a good breast prosthesis, she decided to make her own. Handler went on to found a
Interrupt handler interrupts are often provided, which exacerbates stack usage. A primary constraint on the interrupt handler in this programming endeavour is to not exceed the available stack in the worst-case condition, requiring the programmer to reason globally about the stack space requirement of every implemented interrupt handler and application task. When allocated stack space is exceeded (a condition known as a stack overflow), this is not normally detected in hardware by chips of this class. If the stack is exceeded into another writable memory area, the handler will typically work as expected, but the application will fail later (sometimes much later)