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Higher Study | Computer Organization and Architecture | Memory Management

Which of the following memories has the shortest access time?
Which of the following is used in main memory?
Which of the following is an efficient method of cache updating?
Which of the following memories must be refreshed many times per second?
Main memory is also called as
If a symbol is erased from a memory cell as a consequence of reading, then the readout is said to be
Both RAM and ROM are
An 8085-microprocessor based system uses a 4K × 8 bit RAM whose starting address is AA00H. The address of the last byte in this RAM is:
In a computer system, memory mapped access takes 100 nanoseconds when a page is found in TLB. In case the page is not TLB, it takes 400 nanoseconds to access. Assuming a hit ratio of 80%, the effective access time is:
Techniques that automatically move program and data blocks into physical main memory when they are required for execution are called
A type of memory in which the stored data is not lost when the power is turned off is called
Consider the following statements regarding the Read Only Memory (ROM): 1. The stored data is lost if the power is removed. 2. It consists of an address decoder with a input lines and a programmable OR array with n output lines. 3. The minterms are ORed through the programmable switches which can be made ON or OFF to select a particular minterm. The programmable switches can be implemented by either bipolar, CMOS, nMOS or pMOS technologies. 4. Mask-programmed ROMs are used in the application where the system requires data to be stored and to be changed during the operation. Which of the above statements are not correct ?
Assume a two-level inclusive cache hierarchy, L1 and L2, where L2 is the larger of the two. Consider the following statements. S1: Read misses in a write through L1 cache do not result in writebacks of dirty lines to the L2. S2: Write allocate policy must be used in conjunction with write through caches and no-write allocate policy is used with writeback caches. Which of the following statements is correct? 
Statement (I): External fragmentation is NOT possible in paging. Statement (II): Pages of any program are fixed-sized and can be located anywhere in memory.
An address space is specified by 24­bit and the correspondence memory space is 16 bit. How many words are there in memory space?
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