求大神来解答下面的问题1．An audio signalis sampled 8000 times per second. Each sample is represented by 256 differentlevels. How many bits are needed to represent this signal?A.8000 B. 256*8000 C.7*8000 D. 8*80002．An imaginarycomputer h

求大神来解答下面的问题1．An audio signalis sampled 8000 times per second. Each sample is represented by 256 differentlevels. How many bits are needed to represent this signal?A.8000 B. 256*8000 C.7*8000 D. 8*80002．An imaginarycomputer h
求大神来解答下面的问题
1．An audio signalis sampled 8000 times per second. Each sample is represented by 256 differentlevels. How many bits are needed to represent this signal?
A.8000 B. 256*8000 C.7*8000 D. 8*8000
2．An imaginarycomputer has four data registers (R0 to R3), 1024 words in memory, and 16different instructions (add, subtract, etc.). What is the minimum size of an instructionin bits if a typical instruction uses the following format: add 565 R2.
A.12 B. 16 C.15 D. 14
3．Given the binary number 00100010 , which one of the following is thecorresponding decimal number?
A.20 B. 34 C.68 D. 36
4．Show the following number in 32-bit IEEE format:+2-4*1.01110011
A.0,01111011,01110011000000000000000
B.0,01111011,10111001100000000000000
C.1,01111011,01110011000000000000000
D.1,00000100,01110011
5．A computer has 64MB of memory. Each word is 4 bytes. How many bitsare needed to address each single word in memory?
A.24 B. 23 C.13 D. 14
6．A gray scale picture is digitized using four different gray levels.If the picture is composed of 100*100 pixels, how many bits are needed torepresent the picture?
A.30000 B. 80000 C.40000 D. 20000
7．If the memory address space is 8MB and the word size is 8 bits, then bits are needed to access each word.
A.24 B. 10 C.8 D. 23
8．Which one of the following statements is TRUE?
A.When using floating-point notation, we usually use a bit to store the radixpoint.
B.When representing very small fractions, the problem of overflow may occur.
C.All decimal numbers can be represented exactly using binary notation.
D.When two’s complement notation is used to represent numeric values, a circuitfor addition combined with a circuit for negating a value is sufficient forsolving both addition and subtraction problems.
9．Show the result of the following operation:
(x99 AND x33) OR (x00 AND xFF)
A.x33 B. x11 C.x00 D. xFF
10．In the following, which one represents the largest capacity?
A.1024KB B. 100GB C.1TB D. 1024MB

求大神来解答下面的问题1．An audio signalis sampled 8000 times per second. Each sample is represented by 256 differentlevels. How many bits are needed to represent this signal?A.8000 B. 256*8000 C.7*8000 D. 8*80002．An imaginarycomputer h
DBBXA
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第4题题目那个数字没看明白,没见过这样的表示法.