How it works

How does the OS run a program? — It does an exec from kernel mode (system mode 1). We go to system mode 0, user mode. When the program exits, we switch back to kernel mode.

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Google Interview

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What is Hamming Code?
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What is the square root of 256?
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2^16
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Using bitwise operations, how would you test that a number is a power of 2?
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example of a latency device
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example of a throughput device
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What is code generation?
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4 * 16
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2 ^ 4
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2^3
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2^5
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2^6
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2^7
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2^8
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2^9
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2^10
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2^11
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2^12
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2^13
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2^14
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2^15
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2^32
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size of char in bits
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size of char in bytes
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size of bool in bits
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size of short in bits
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size of short in bytes
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size of int in bits
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size of int in bytes
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size of long in bits
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size of long in bytes
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size of long long in bits
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size of long long in bytes
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size of float in bits
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size of float in bytes
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size of double in bits
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size of double in bytes
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size of wchar_t in bits
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size of wchar_t in bytes
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