Exam 2
Show the magnitude of the following two's complement representation by converting it to the equivalent signed decimal (base 10) form. 110000012 =
-63 or -6310
A(n) ____ is a program in which different sets of instructions are applied to different data input values
. algorithm
Early mechanical computation devices were built to perform
. repetitive mathematical calculations
Gigabyte
1 billion bytes
Megabyte
1 million bytes
bit
1 or 0
Terabyte
1 trillion bytes
Kilobyte
1000 bytes
Binary Multiplication: Multiply 11010110 by 111. Final answer should be in binary
10111011010 ^2
Binary Multiplication: Multiply 11010110 by 111. Final answer should be in binary.
10111011010^2
The hexadecimal number system has 16 symbols, and can count from 0 to
15
The hexadecimal number system uses a base
16
Each hexadecimal digit can be quickly converted into ____ binary bits.
4
The octal number systems uses the base _
8
byte
8 bits
Perform an 8-bit binary computation on the following problem using the one's complement. 40 -85
Answers must be in binary: a. 00101000 b. 01010101 c. 11010010 (-45)
In a ____, each digit can have only one of two possible values: 0 or 1.
Binary Number
Binary numbers are well suited to computer processing because they correspond directly with values in ____ logic
Boolean
The first commercially available quantum computer was built by
D-wave
A _________ chip has a row of legs running down each side
DIP
Adapters are installed into ________.
Expansion slots
In a bit string, the LSB holds the position of the leftmost bit.
False
There are 8 bytes to every bit? T or F
False there are8 bits to every byte
The carry (extra bit) in a one's complement calculation is ignored
False It is actually used, and added back into the equation. dataconv2
To complete a decimal to binary conversion, you divide the decimal number by 10.
False Correct, you divide by the base of the number you are trying to get to
The carry (extra bit) in a one's complement calculation is ignored.
False It is actually used, and added back into the equation
Perform an 8-bit binary computation on the following problem using the two's complement. (partial credit) 64 -75
Final Answers must be in binary: a.01000000 b. 101101011 c. 11110101 (-11)
Which technology decreases the system workload on the CPU and can optionally process graphical data quickly with reduced power consumption?
GPU
Software applications are normally loaded onto the
Hard drive
The physical computer and parts inside the computer
Hardware
The central part of an operating system
Kernel
The acronym KVM, stands fo
Keyboard Video Mouse
Which type of cache memory is fastest for the processor to use?
L1
The acronym, LSB stands for ____________ ___________ ____________.
Least Significant Bit
Can a DDR4 module fit in a DDR3 slot?
NO
Every computer needs this important piece of software that interacts between hardware and software applications
Operating System
signals can carry more data than electrical signals.
Optical
Answers must be in binary: a. 00101000 b. 01010101 c. 11010010 (-45)
Perform an 8-bit binary computation on the following problem using the one's complement. 40 -85
physics describes the behavior of matter at a subatomic level
Quantum
What is the most common (and most numerous) type of memory in a PC
RAM
contents disappear when data is turned off
RAM
Which type of memory does the motherboard have the most of?
RAM Random Access Memory
Which type of port is found on an Ethernet port?
RJ 45
Why should a technician be able to use a tool such as the Windows Snipping Tool?
To be able to capture what is on the screen
A device driver is a special piece of software designed to enable a hardware component.
True
Each octal digit can be directly mapped into three binary digits.
True
Firmware is a combination of hardware and software such as when electronic chips contain software inside of them.
True
The SPD has an extra EEPROM that holds information about the DIMM
True
The power supply located in the pc is used to convert AC voltage to DC voltage
True
To convert a binary number into the one's complement: invert all the zero's to ones and all the one's to zero's, so that the resulting pattern will give you the original number with the opposite sign.
True
Unbuffered memory is faster than registered or fully buffered memory.
True
A type of memory module that allows the BIOS to configure voltage and timing settings in order to over clock the memory
XMP
Code 15.50(base 10) in floating point form using IEEE format: Show the hex value, the exponent, and the final answer.
a. hex value F.8 base 16 b. 1000001 c. answer = 0 1000001 1111 10000 00000 0000 0000 0000
Convert to base 16 by first converting to base 2. 101 ^10
a.1100101 ^2 b.65 ^16
fits in the expansion slot
adapter
Example of devices that can be both input and output devices
all of the choices smart TV MIDI KVM switch
In a modern digital computer, data is represented by groups of _
bits
A ____ is a group of similar or identical computers, connected by a high-speed network, that cooperate to provide services or run a single application.
cluster
A simple definition of a computer is a device that can accept numeric inputs, perform computational functions, and ____.
communicate results
In the decimal numbering system, the period or comma is called a ____
decimal point
Holds the most data
hard drive
Quantum physics describes subatomic behavior with _
mathematical rules
Has the most electrons
motherboard
Which two ports sometimes are identical in shape, size, and conductors? (Select two.)
mouse and keyboard
If the MSB is a 1 in a signed binary number, the number is considered to be
negative number
Optical light pulses can be stored indirectly, such as
on the surface of a DVD
holds a disc
optical drive
Converts AC to DC
power supply
Which computer component converts AC to DC and distributes DC to internal computer components?
power supply
Storage devices that hold currently executing programs are called ____
primary storage
Any matter that stores data in multiple simultaneous quantum states is called a
qubit
A(n) ____ can contain both whole and fractional components
real number
A rewrite of information inside memory chips.
refresh process
The CPU contains a few internal storage locations called ____, each capable of holding a single instruction or data item.
registers
Early mechanical computation devices were built to perform
repetitive mathematical calculations
Early mechanical computation devices were built to perform ?
repetitive mathematical calculations
Storage devices that hold data not needed by currently running programs are called ___
secondary storage
There is one significant problem with the one's complement? Please explain briefly
two representations of zero; zero can not be negative
There is one significant problem with the one's complement? Please explain briefly.
two representations of zero; zero can not be negative
A binary number is often padded with leading ____________ to adjust it to the required width
zeroes
