The followings are 8-bit words is stored in the memory. Suppose
when the words were read...
The followings are 8-bit words is stored in the memory. Suppose
when the words were read from the memory, the check bits are
calculated to be 0010. Using Hamming error correction code, find
the he check bits stored together with the word, the syndrome word
and the word fetched from the memory for the word given below.
0110
1010
1111
0001
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Make a schema for a memory size of 65536 words per 8 bits. Use
8k by 8-bit 2764 memory a) with a single decoder 388 and
inverters. b) Use a decoder 2 4 and inverters? Help?
How to implement?
The unsigned decimal value (1,036)10 is to be stored
as a 16-bit word in memory.
Show the 16-bit unsigned binary representation of
(1,036)10.
Show the 4-digit unsigned hexadecimal representation of
(1,036)10.
The unsigned binary value of part (a) should be stored using
two bytes of a byte-addressable memory at locations 400 and 401.
Specify the hexadecimal value in each byte for a “big endian”
instruction set architecture. Give your answer by showing a table
like the one below.
...
Suppose the memory cells at address 0x00 through 0x0D in the vole
contain the following bit patterns:
Address. contents
0x00. 0x20
0x01. 0x04
0x02 0x21
0x03. 0x01
0x04. 0x40
0x05 0x12
0x06. 0x51
0x07. 0x12
0x08 0xB1
0x09. 0x0C
0x0A. 0xB0
0x0B. 0x06
0x0C. 0xC0
0x0D. 0x00
Assume that the machine starts with its program counter
contaning 0x00.
WHat bit pattern will be in register 0x00 when the machine
Halts?
WHat bit pattern will be in register 0x01 when the...
Suppose you have a hypothetical machine that has 4 MB of
physical memory and a 24-bit address space.
Your hypothetical machine uses paging
in a linear page table. Each page holds 512 bytes.
Each page still holds 512 bytes.
Given the following virtual
address, partition the bits into
a virtual page number and an
offset.
0xC3D0E6
IEEE 754 format of 32-bit floating-point is as follows.
1
8 (bits)
23 (bits)
What’s stored in each region?
What’s the bias value and how to get it?
For decimal fraction: – 0.625, please represent it as given
format (Note: you must show the
specific procedure/stepsin order to get full
credits. If you only present final result directly, you will only
get half of the credits even if it is
correct.).
6. Assume a computer has a physical memory organized into 64-bit
words. Using hexadecimal notation, give the word address and offset
within the word for each of the following byte addresses.
Byte address
Word address
Offset
0x000b
0x03ff
0x07fc
1a)
Suppose that memory for unrelated words is distributed normally
with a mean of µ = 60 with a standard deviation of σ = 20. A random
sample is selected from this population. After a treatment is
administered to the individuals in the sample, a memory test that
measures memory for unrelated words is administered, the sample
mean is found to be M = 55. If the sample consists of n = 25
scores, can we conclude that the treatment...
In a study of memory recall, 8 students from a large psychology
class were selected at random and given 10 min to memorize a list
of 20 nonsense words. Each was asked to list as many of the words
as he or she could remember both 1 hour and 24 hours later, as
shown in the following table:
Subject 1 2 3 4 5 6 7 8
1 Hour 14 12 18 7 11 9 16 15
24 Hours 10...
11. Suppose that a 32M × 16 memory built using 512K × 8 RAM
chips and memory is word-addressable.
a) How many RAM chips are necessary?
b) If we were accessing one full word, how many chips would be
involved?
c) How many address bits are needed for each RAM chip?
d) How many banks will this memory have?
e) How many address bits are needed for all of memory?
f) If high-order interleaving is used, where would address 14...
Does bread lose its vitamins when stored? Small loaves of bread
were prepared with flour that was fortified with fixed amounts of
vitamins A (beta-carotene) and E. After baking, the vitamin A and
vitamin E contents of two loaves were measured. Another four loaves
were baked at the same time. Two of them were stored for three
days, and two of them for seven days, before taking measurements.
The measurements of the amounts of vitamins A and E in each...