IT 105 GMU Midterm review

Calculate the file size of an image in that comprises of 512x512 pixels with 6 bits assigned per pixel in terms of MB.

0.1875 MB

Calculate the size of a video file in terms of GB if each frame comprises of 512x512 pixels with 6 bits assigned per pixel with a frame rate of 24 fps and lasts for 30 minutes.

7.91 GB

Calculate the file size of an image in that comprises of 512x512 pixels with 6 bits assigned per pixel in terms of MB.

0.1875 MB

Calculate the size of a video file in terms of GB if each frame comprises of 512x512 pixels with 6 bits assigned per pixel with a frame rate of 24 fps and lasts for 30 minutes.

7.91 GB

Which of the following is measured in terms of GHz?

Processor speed

Which of the following is classified as volatile memory?

RAM

Which component of the CPU is responsible for arithmetic and logical operations?

ALU

Which component of the CPU is used to store frequently used instructions and data?

Cache memory

What is the minimum standard sampling frequency that is used to digitize audio signals for CD-quality music?

44,100 Hz

One example of a low-level programming language is which of the following?

Assembly language

When a user launches a piece of software, such as from the hard disk, the instructions and data that correspond to the software and reside in RAM are in the form of:

Machine language

The length of the binary code that the camera generates for each pixel is called the:

Bit depth

Calculate how many bits there are in a 4 KB digital audio file

32,768 bits

How many "adds" does it take the ALU to process a 64 bit number if the word length is 16?

4

In the Von Neumann Model, communication between the memory and processing unit consists of the Memory Address Register (MAR) and the Memory Data Register (MDR).

True

What are CPU cycles during instruction processing? List in the correct order.

Fetch, decode, execute, write-back

An accumulator is a register in a computer processor that:

Is a temporary memory to hold the result of arithmetic operations

A program counter is a register in a computer processor that:

Contains the address of the instruction being executed at the current time.

Which of the following is a memory element that temporary holds a single unit or word of data?

Registers

Which of the following indicates the amount of time between two pulses of an oscillator (1 and 0) and

measures the speed of the processor?

Clock cycle

Which of the following translates assembly language code to machine code?

Assembler

Which of the following transforms high-level source code in a high-level programming language into a low

level object code (binary code)?

Compiler

When the control unit swings into action, which step comes first?

Fetch an instruction

Which Processor Instruction Execution method simultaneous use of more than one processor (multiple cores) to execute a program?

Parallel Processing

Which Processor Instruction Execution method processes data one instruction at a time, completing one instruction before beginning another?

Serial processing

Which Processor Instruction Execution method allows a processor to begin executing an instruction before completing the previous instruction?

Pipeline processing

Which CPU cache allows a microprocessor to access data the fastest?

Level 1 cache (L1)

x86 processors use ____________.

CISC technology

To represent the color gray in RGB system, the decimal value for green is 128. What are the equivalent hexadecimal and binary values for green?

80 and 10000000

A characteristic of bitmap graphics is that they are resolution dependent, so that reducing the resolution also reduces the image quality.

True

Vector graphics require more storage space than bitmaps, but vectors can be enlarged without becoming pixelated.

True

What is the storage needed to store one video frame with 2080x1040 resolution in True-color format?

51916800 bits

Which step in the research process tells the reader what other researchers have discovered about the topic of the paper, or tells the reader about other relevant research?

Literature Review

Which step in the research process is a tentative assumption made in order to draw out and test its logical or empirical consequences to a scientific question?

Formulating the hypothesis

Convert the hexadecimal number F13C to decimal

61756

Octal is know as base_______

8

Convert the octal number 250 to decimal

168

Gates are also know as:

Combinational logic elements

Which of the following represents an AND gate:

A*B

A NOT gate is also know as an (a):

Inverter and

Complimenter

A decoder is a piece of hardware that transforms ______________ into control signals

Opcodes

A MUX is another ______________________ logic circuit.

Combinational

The ________________is an example of a simple, functional digital circuit built from two logic gates.

Half adder

______________is common in programming languages

Hexadecimal

_________________refers to the number of times per second that a sound is measured during the recording process.

Sampling rate

Graphics stored in True Color format require _____ bits for each pixel.

24

___________________is a representation of a 3-D object using separate lines, which resemble wire, to create a model.

Wireframe

The number of frames that are displayed per second is the ____________

Frame rate

An ______________________is a contrasting scanning technique that produces an image by drawing every other line, then going back and filling in the in-between lines.

Interlaced scan

________________provides a way to compress data and reconstitute it into its original state; uncompressed data stays exactly the same as the original data. Reduces the file size, not the quality

Lossless compression

Audio compression is usually _____________.

Lossy

_________________is a type of lossless compression that replaces a series of similarly colored pixels with a binary code that indicates the number of pixels and their colors

Run-length encoding

___________ stores only the pixels that change color from one frame to the next

Interframe compression

Gigabyte is:

. 2^30 bytes

First task to digitize information is __________.

to reduce infinite number of measurements to a finite number

What is the binary representation 132?

10000100

What is decimal representation of 0110?

6

What is the result of adding binary numbers -15 and +5 ?

10110

What is the binary representation of -8 in 8-bit 2's complement form?

11111000

Which numbering system is related to the following series of numbers?

0, 1, 2, 3, 4, 5, 6, 7, 10 , 11, 12, 13, 14, 15, 16, 17, 20, 21, 22, 23, 24, 25, 26, 27, 30

octal

How many unique locations can be represented with 5 bits address?

32

Convert 1110101010110001(2) into hexadecimal shorthand:

EAB1(16)

Which type of signal varies smoothly and continuously over time?

Analog signal

ASCII stands for:

American Standard Code for Information Interchange

A group of eight bits is called a _______.

Byte

The term 'stored program' means that a series of instructions for a computing task can be loaded into a computer's memory.

True

What is the decimal representation of hexadecimal FF(base 16)?

255

The overflow bit status if adding two negative numbers yields to a positive number is:

1

The carry bit status two`s complement arithmetic operation 7-5= +2 is:

1

How many different values can 3 bits represent?

8

Which of the following statements defines a computer?

Any device capable of processing information to produce a desired result.

A programmable device capable of accepting input, processing input, and producing output

Which of the following functions is supported by a computer?

Accepting data and Processing data

Producing output

Storing results

What is the decimal equivalent for binary sequence 10001001 ?

137