A circuit has four inputs D, C, B, and A encoded in 8421 natural binary form. The inputs in the range 00002 = 0 to 10112 = 11 represent the months of the year from January (0) to December (11). Inputs in the range 1100 to 1111 (i. e. 12 to 15) cannot occur. The output of the circuit is a logical one if the month represented by the input has 31 days. Otherwise the output is false. The output for inputs in the range 1100 to 1111 is undefined.

Aisha has finished working on a word processing document that contains 15 pages. she has added some special elements in the first three pages, page 9 and 10, and page 15 from the document. she wants to print only these pages to see how they look. which option is the correct way to represent (in the print dialog box) the pages that aisha wants to print?

Suppose we have a byte addressable computer that has a 32-byte cache with 8 bytes per block. the memory address is 8 bits long. the system accesses memory addresses (in hex) in this exact order: 6e, b9, 17, e0, 4e, 4f, 50, 91, a8, ab, ad, 93, and 94. (a) assuming the cache is direct mapped, what memory addresses will be in cache block 2 after the last address has been accessed? (b) assuming the cache is direct mapped, what is the hit ratio for the entire memory reference sequence given, assuming the cache is initially empty? (c) assuming the cache is 2-way set associative with a lru replacement policy, what is the hit ratio?

You begin your first day of responsibilities by examining the recent is security breach at gearup to get ideas for safeguards you will take. at gearup, criminals accessed the company's improperly-secured wireless system and stole customers' credit card information as well as employee social security numbers. what kind of computer crime did gearup face?