1. What are the three major components of any computer system? CPU, Memory, I/O
2. ROM is faster, cheaper, and smaller than RAM. The 68HC11A8 has 8k bytes of ROM and 256 bytes of RAM. Why isn't the memory entirely ROM? Need to be able to store values, and ROM is Read Only Memory.
3. My Home computer has 64 Megabytes of RAM. The memory is byte addressable. How many bits is the minimum required to address 64 MegaBytes? 26 (accepted 27 for full credit)
4. For the same clock frequenccy, how much faster (or slower) is an n bit parallel data port than a one bit serial port? n times faster
5. You have been taught 6 addressing modes. List 3 addressing modes
and describe how they differ from each other.
Inherent = no address for operand.
Immediate = operand value stored right after instruction.
Direct = 8 bit address to location in memory of operand value.
Extended = 16 bit address to location in memory of operand value.
Indexed = address is sum of immediate value plus specified index register.
PC relative = operand value calculated relative to current PC register contents.
