CPU Later, Alligator
One action that occurs during the fetch cycle is incrementing a pointer to the location of the next instruction.
a. True
b. False
5
____ hold frequently used data items such as loop counters and array indexes.
a. Reserved registers
b. Kernel registers
c. Instruction registers
d. General-purpose registers
34
In a CD, flat areas in the reflective layer that represent bit values are called “____.”
a. lands
b. grooves
c. rings
d. plateaus
24
Subsequent groups of bits after the first group in an instruction hold its input values, called ____.
a. operands
b. op codes
c. operators
d. words
23
The loss of electrical power that occurs as electrons pass through a conductor is called ____.
a. resistance
b. voltage
c. amperage
d. wattage
28
During the ____ cycle of the CPU, the transformation takes place and data output is stored.
a. execution
b. fetch
c. store
d. wait
17
____ in the CPU are storage locations for instructions and data.
a. ALUs
b. Shifters
c. Registers
d. Controllers
41
The time the disk controller must wait for the right sector to rotate beneath the heads is called ____.
a. track-to-track seek time
b. rotational delay
c. average access time
d. synchronization delay
15
The ____ can extract a single bit from a bit string.
a. logic SHIFT
b. ROTATE
c. ADD
d. NOT
11
Electricity travels through a trace at approximately 70% of the speed of light.
a. True
b. False
7
In a(n) ____________________ instruction, the processor always departs from the normal execution sequence.
63
The term ____ describes primary storage devices that are implemented as microchips, can read and write with equal speed, and can randomly access bytes, words, or larger data units.
a. RAM
b. PROM
c. ROM
d. semiconductor
16
A disk with many program and data files scattered on it is said to be ____.
a. partitioned
b. segmented
c. clustered
d. fragmented
42
A ____ instruction copies data bits to storage locations and can copy data between any combination of registers and primary storage locations.
a. JUMP
b. LOAD
c. STORE
d. MOVE
45
The ____________________ of most materials increases as their temperature increases.
60
A(n) ____ instruction suspends the normal flow of instruction execution in the current program.
a. COMPARE
b. ADD
c. JUMP
d. HALT
25
A storage device or medium is ____ if it holds data without loss over long periods.
a. volatile
b. dynamic
c. nonvolatile
d. archival
20
Magnetic disk media are flat, circular ____________________ with metallic coatings that are rotated beneath read/write heads.
49
A(n) ____________________ instruction transforms the Boolean value true (1) into false (0) and the value false into true.
61
The conductivity of ____________________ varies in response to the electrical inputs applied.
58
The term ____ describes instructions executed after the guess but before the final result is known with certainty.
a. speculative execution
b. consecutive execution
c. parallel execution
d. symmetric execution
40
The ____, a newer packaging standard, is essentially a SIMM with independent electrical contacts on both sides of the module.
a. double inline memory module
b. dual inline package
c. surface mount package
d. zero-insertion force package
19
The tendency of magnetically charged particles to lose their charge over time is called ____.
a. magnetic half-life
b. magnetic flux
c. magnetic field
d. magnetic decay
39
A(n) ____________________ SHIFT instruction performs multiplication or division.
53
The stored charge held within a bit of magnetic storage must be above the ____________________ for a read operation to be successful.
48