Computer Hardware
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<p><p>What does HDD stand for?</p></p>
<p><p>Hard Disk Drive</p></p>
<p><p>What does SSD stand for?</p></p>
<p><p>Solid State Drive</p></p>
<p><p>What does Dual core mean?</p></p>
<p><p>2 processors ( NOT TWICE AS FAST!!!)</p></p>
<p></p> <p>What does Quad core mean?</p>
<p></p> <p>4 processors (Not necessarily 4 times as fast thought!)</p>
<p><p>What does 1 GHz mean?</p></p>
<p><p>1 billion instructions a second. | </p></p>
<p><p>What body part is the CPU normally compared to?</p></p>
<p><p>The brain</p></p>
<p><p>What does the CPU do?</p></p>
<p><p>IT processes the instructions given by the computer.</p></p>
<p><p>What 3 things does the CPU do?</p></p>
<p><p>Fetches, Decodes, Executes.</p></p>
<p><p>How many levels of the cache are there?</p></p>
<p><p>3 levels</p></p>
<p></p> <p>How much memory can typically be stored in the first level of cache?</p>
<p></p> <p>16kB</p>
<p></p> <p>How much memory can typically be stored in the Second level of cache?</p>
<p></p> <p>256 - 516 kB</p>
<p><p>What does RAM stand for?</p></p>
<p><p>Random Access Memory</p></p>
<p></p> <p>What is ROM?</p>
<p></p> <p><b>Primary</b> non-volatile storage.</p>
<p><p>What does Volatile memory mean?</p></p>
<p><p>The memory is only kept while the computer is on.</p></p>
<p><p>What does ROM stand for?</p></p>
<p><p>Read only Memory</p></p>
<p><p>What are the advantages of HHDs?</p></p>
<p><p>Can store a lot of data. Cheaper than SSD. Ideal for desktop PC.</p></p>
<p><p>What are the disadvantages of HDDs?</p></p>
<p><p>Big Slow Can get damaged easily Less robust Can be loud </p></p>
<p><p>What are the advantages of SSDs?</p></p>
<p><p>Ideal for laptops. Light Small Fast More robust than HDDs.</p></p>
<p>What is better quad or dual cores?</p>
<p>Quad</p>
The three parts of the cycle that a CPU runs in are called
fetch, decode and execute
<p>What cycle is used in the CPU?</p>
<p>Fetch, Decode, Execute</p>
<p>What does clock speed mean?</p>
<p>The speed one full fetch-decode-execute cycle takes.</p>
An example of a low-level language is
assembler (assembly language)
What is stored on the ROM of a computer?
start up instructions for the PC