IT 105 GMU MIDTERM REVIEW Exam
Questions With Correct Answers
Serial processing - answer✔✔Processing data one instruction at a time, completing one
instruction before beginning another
Pipeline processing - answer✔✔A technology that allows a processor to begin executing an
instruction before completing the previous instruction
Parallel processing - answer✔✔The simultaneous use of more than one processor to execute a
program
CPU cache - answer✔✔A high-speed memory providing the CPU rapid access to data that
would otherwise be accessed from disk or ram. Measured in Megabytes
Volatile memory - answer✔✔Maintains data when the device is powered. RAM
SRAM - answer✔✔Faster, more expensive, easier to use, cache memory
DRAM - answer✔✔Slower, cheaper, more difficult to use, main memory
ALU - answer✔✔Component of the CPU that is responsible for arithmetic and logical
operations
Cache memory - answer✔✔Component of the CPU that is used to store frequently used
instructions and data
Assembly language - answer✔✔Low-level programming language
Machine language - answer✔✔When a user launch is a piece of software such as from the heart
does the instructions in date of that correspond to the software and reside in RAM
Bit depth - answer✔✔The length of the binary code that the camera generates for each pixel
CPU cycles during instruction processing (in order) - answer✔✔Fetch, decode, execute, write-
back
True or false. In the Von Neumann Model, communication between the memory and processing
unit consists of the Memory Address Registrar (MAR) and the Memory Data Register (MDR). -
answer✔✔True
What does a program counter in a register of a computer processor do? - answer✔✔It contains
the address of the instruction being executed at the current time
Registers - answer✔✔Memory element that temporary hold a single unit or word of data
Clock cycle - answer✔✔Indicates the amount of time between two pulses of an oscillator (1 and
0) and measures the speed of the processor
Processor Clock - answer✔✔A timing signal that sets the pace for executing instructions in a
microprocessors, measured in GHz
Assembler - answer✔✔Translate assembly language code to machine code
Compiler - answer✔✔Transforms high-level source code in a high-level programming language
into a low level object code
Level 1 cache - answer✔✔Allows a microprocessor to access data the fastest
CISC technology - answer✔✔x86 processors
True or false. A characteristic of bitmap graphics is that they are resolution dependent, so that
reducing the resolution also reduces the image quality. - answer✔✔True
True or false. Vector graphics require less storage space than bitmaps, but vectors can be in large
without becoming pixelated. - answer✔✔True
Decoder - answer✔✔A piece of hardware that transforms opcodes into control signals
MUX - answer✔✔Another combinational logic circuit
Half adder - answer✔✔A simple, functional digital circuit built from two logic gates
Sampling rate - answer✔✔The number of times per second that a sound is measured during the
recording process
Speech synthesis - answer✔✔Process by which machines produces sound that resembles spoken
words
How many bits do graphics in true color format require for each pixel? - answer✔✔24
Wire frame - answer✔✔A representation of a 3-D object using separate lines, which resemble
wire, to create a model
Digital - answer✔✔Data expressed in digits
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