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Related Flashcards
Cards In This Set
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What is a computer?
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A computer is an electronic device that stores and processes data
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A computer includes what two components
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A computer includes both hardware and software
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What are computer programs/software
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Computer programs are the invisible instructions that control the hardware and make it perform tasks
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What is computer programming?
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Computer programming is the writing of instructions for computers to perform
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The CPU in comparison to the human body is what?
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The CPU can be compared to as the brain of the computer
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What does the CPU do?
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The CPU retrieves instructions from memory and executes them
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Computers use 0's and 1's because
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Computers use 0's and 1's because digital devices have two stable states, referred to by convention as zero and one
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What is a bit?
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A bit is a binary digit 0 or 1
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What is a byte?
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A byte is a sequence of 8 bits
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A kilobyte is how many bytes?
A megabyte is how many bytes? A gigabyte is how many bytes? A terabyte is how many bytes? |
A kilobyte is 1024 bytes.
A megabyte is about one million bytes. A gigabyte is about one billion bytes. A terabyte is 1024 gigabytes. |
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What is the purpose of memory?
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Memory stores data and program instructions for the CPU to execute
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What is a memory unit?
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A memory unit is an ordered sequence of bytes
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Why is memory volatile?
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Memory is volatile because information is lost when the power is turned off
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Where are programs and data permanently stored on?
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Programs and data are permanently stored on storage devices. They are moved to memory when the computer actually uses them
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What is machine language?
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It is a set of primitive instructions built into every computer
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