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Definition
| An electrical machine used to process information. |
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Definition
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Term
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Definition
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Term
| How many bits in a double word? |
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Definition
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| Difference between signed and unsigned? |
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Definition
| High-end bit indicates parity: +/- |
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Term
| What is the two's complement of a number? |
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Definition
| 1. Bits are flipped 2. 1 is added to the result |
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| What indicates overflow in an UNSIGNED machine? |
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Definition
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| What indicates overflow in a SIGNED machine? |
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Definition
| If the high end bits of the 2 operands are both 1 or are both 0, and the high end bit of the sum is the opposite. |
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Term
| What logical operator is best for clearing bits? What is the process? |
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Definition
| AND. x AND 0 will clear x to 0 |
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Term
| What logical operator should you use if you want to set bits? What is the process? |
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Definition
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Term
| What logical operator should you use to invert bits? What is the process? |
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Definition
| XOR. x XOR 1 flips x from 0 to 1 or from 1 to 0 |
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Term
| When is a p-type transistor closed? |
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Definition
| When the gate is supplied 0 volts. |
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Term
| When is an n-type transistor closed? |
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Definition
| When the gate is supplied with a 1 (2.9 volts) |
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Term
| What are the bit allocations for IEEE short real format? |
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Definition
high end bit is the sign bit
the next 8 are for exponent
low 23 bits are for fractional portion |
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Term
| What is the most important property of a decoder? |
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Definition
| Exactly one of its outputs are 1 and the rest are 0 |
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Term
| How many outputs do decoders normally have for n inputs? |
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Definition
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Term
| What is the primary function of a multiplexer? |
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Definition
| To select one of its inputs and connect it to the output |
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Term
| How many inputs does a multiplexer have for n select lines? |
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Definition
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Term
| What is logical completeness? |
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Definition
| A set of logical operators is logically complete if they can implement any truth table. |
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Term
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Definition
| A simple 1 bit storage element. |
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Term
| What must the values of R and S be for the R-S latch to retain its state? |
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Definition
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Term
| How do we clear the R-S latch? |
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Definition
| Set R to 0, then set R back to 1 |
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Term
| How do we set the R-S latch? |
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Definition
| Set S to 0, then back to 1 |
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