1. How many address lines (bits in the address) and I/O lines (bits in the actual data) are needed for 256K X 32 word-addressable memories? (10 Points) 3. A digital computer has a memory unit with 32 bits per word. The instruction set consists of 260 different operations. All instructions have an operation code part (opcode) and an address part (allowing for only one address). Each instruction is stored in one word of memory. How many bits are needed for the opcode? (9 Points).