IO and Memory Interfacing » Exercise – 1
4. Memory mapped I/O is a technique to :
(a) Interface a memory having 8-bit addresses
(b) Interface a memory having 16-bit addresses
(c) Interface an IO having 8-bit addresses
(d) Interface an IO having 16-bit addresses
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IO and Memory Interfacing » Exercise - 1 1. Permanent data and instructions storing memory is : (a) RAM chips (b) ROM chips (c) DRAM chips (d) None of these 2. ……………. memory chips are said to be volatile. (a) RAM chips (b) ROM chips (c) DRAM chips (d) None of these 3. EPROM is erased by using : (a) Infrared rays (b) Ultraviolet rays (c) 12 V electric pulse (d) 24V electric pulse 4. Memory mapped I/O is a technique to : (a) Interface a memory having 8-bit addresses (b) Interface a memory having 16-bit addresses (c) Interface an IO having 8-bit addresses (d) Interface an IO having16-bit addresses 5. The advantage of memory mapped I/O over I/O mapped I/O is : (a) Faster (b) Many instructions supporting memory mapped I/O (c) Require a bigger address decoder (d) All of the above