Just need answers Cache system A represents a direct mapping cache system as presented in table 1.The system is byte-addressable and the block size is one word (4 bytes). The tag and line numbersare represented with binary numbers. The contents of words in a block are represented withhexadecimal.Tag10 1000 0100 1001 1010 01100000110110 1000 0100 1001 1010 011000001110Line Number Word within block10 1000 0100 1001 1010 01100000111110 1000 0100 1101 1010 011100000000Answer =Answer=00 01 10 11Answer =2116 6116 C116 DO16Table 11. What is the size of the main memory for Cache system A?2216 6216 C216 D216162316 6316 C316 D3162. What is the size of the cache memory of Cache system A?2416 6416 C416 D4163. If we request to read memory address A1 24 29 BC, what data do we get? 4. If we request to read memory address A1 24 29 B4, what data do we get?Answer =5. If we access memory in the following order in Cache system A, how many Cache misses wouldoccur for this data request?Memory addresses:1. A1 A1 FF B12. A1 A1 FF B23. A1 A1 FF B34. A1 A1 FF B45. A1 A1 FF BO16Answer =miss(es)

A direct-mapped cache is a specific type of cache system designed to enhance memory access efficiency in computer architectures. In this configuration, each block of main memory maps to a unique line in the cache. The mapping is determined by certain bits of the memory address, with the simplicity of direct mapping allowing for faster access but presenting some limitations. Typically, the address is divided into three parts: the tag, which identifies the block of memory; the index, determining the line or set in the cache; and the offset, indicating the position of the data within the block. While direct-mapped caches are efficient in terms of speed, they may experience higher rates of cache misses compared to more complex mapping techniques, as multiple memory addresses may map to the same cache line. Design considerations for cache systems, including size and block size, play a crucial role in optimizing overall system performance.Here is the explanation of the answers of the given question:1. Size of Main Memory: - The physical address is composed of tag (18 bits), index/line number (12 bits), and word-offset (2 bits), totaling 32 bits. - The size of the main memory is calculated as bytes, which is equivalent to 4 GB. Size of Main Memory = 4 GB2. Size of Cache Memory: - The cache memory size is determined by the number of lines and bytes per line. - Calculated as bytes, the cache size is 16 KB. Size of Cache Memory = 16 KB3. Data at Memory Address A12429BC: - Analyzing the binary representation of the memory address, a cache hit is observed at index 101001101111 with the tag 101000100100. The data returned is from offset 00, corresponding to the value 2316. Data at A12429BC = 23164. Data at Memory Address A12429B4: - Similar to the previous scenario, a cache hit occurs at index 101001101101 with the tag 101000100100. The data returned is from offset 00, resulting in the value 2116. Data at A12429B4 = 21165. Cache Misses for Data Requests: - Sequential memory accesses are considered, and cache hits/misses are determined: - A1 A1 FF B1: Cache Miss (New block fetched) - A1 A1 FF B2: Cache Hit (Same block as B1) - A1 A1 FF B3: Cache Hit (Same block as B1) - A1 A1 FF B4: Cache Miss (New block fetched) - A1 A1 FF B0: Cache Hit (Same block as B1) Number of Cache Misses = 2 (out of 5 accesses)Conclusion:The cache system, designed as a direct-mapped cache with a block size of one word, effectively handles specific memory accesses, resulting in a mix of cache hits and misses. The main memory size is determined by the physical address composition, while the cache size plays a crucial role in managing data access. The analysis emphasizes the importance of cache design in optimizing memory performance, with considerations for hit rates and cache misses.