20 Questions
What is the fundamental unit of a modern computer?
Bit
What is the total number of possible values that can be stored in a byte?
256 (28)
What is the natural size of the execution environment called?
Word
How many bits are in a nibble?
4
What is the total number of bits in a byte?
8
What is the highest decimal value that can be stored in a byte?
255
What is the binary representation of 'on' in a bit?
1
What is the fundamental addressable unit of RAM?
Byte
How many bytes are in a word?
It depends on the CPU
What is the purpose of the numbering systems in the context of computer information?
To interpret information stored in RAM
What is the size of a word on a 16-bit CPU?
2 bytes
On an Itanium 2 CPU, how many bits are in a general register?
64 bits
How many bits of information does each hexadecimal digit hold?
4 bits
What is the decimal value of the hexadecimal number 0x5C?
92
What is the purpose of the 0x prefix in hexadecimal notation?
To indicate a hexadecimal value
In a memory model, how are actual physical memory locations organized?
As a linear sequence
What is the maximum address in a 4 Gigabytes of RAM?
4,294,967,295
What is the purpose of the permission system in certain architectures?
To trap errors while a program is executing
What is the term for an error that occurs when a program attempts to access the wrong segment?
Segmentation fault
What is the limitation of the maximum size of the memory that a CPU can access?
It depends on the size of its address registers
Learn about how computers store information, including program instructions and data, in the form of bits in RAM. Understand the binary and hexadecimal numbering systems and their units, as well as the memory model for addressability.
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