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