NJE GAMF MIK DIT

Computer architectures I. scoring test

Name:

Neptun code:

Date: $2024\mathrm{.}05\mathrm{.}14$

Mark your answer clearly. Each task is worth $2$ point.

Which computer manufacturer's machine was the first to develop the UNIX operating system and the $C$ programming language?

DEC

IBM

CDC

To which computer is the term "computer archilecture" associated?

Cray$-1$

DEC PDP$-1$

IBM $360$

$$ none of the answers are correct

The memory compartment of a computer is $23$ bits. How many octal numbers can be used to specify the contents of the memory compartment?

$6$

$18$

$4$

$$ none of the answers are correct

A processor's ALU is $16$ bits. How many hexadecimal numbers can be used to specify the size of the operands?

$3$

$$ none of the answers are correct

How many hexadecimal numbers can be used to specify the content of a $16-$bit register?

$32$

$16$

$$ none of the answers are correct

The address bus of a microprocessor is $32$ bits, the memory compartment is $32$ bits. How many bytes of memory capacity?

$16777216$

$33554432$

$65536$

$$ none of the answers are correct

What is the binary form of the decimal number $137\mathrm{.}125?$

$10011001\mathrm{.}10110011000\mathrm{.}011$

$10001001\mathrm{.}001$

none of the answers are correct

What is the value of the carry bit after adding the numbers $0AC$ and $0DC?$

$1$

$064$ and $046$ are numbers represented in two's complement code. What is the value of the overflow bit after adding the numbers?

$10$

$x=0AB$ and $Y=0BA$ are unsigned integers. What is the value of the borrow bit after subtracting $x-Y?$

$1$

$0$

What is the sign bit of two's complement code number $05F?$

$1$

$0$

$12.$ Is the following statement true? $"$In the case of the sign$+$absolute value number representation, the representation of the number $0$ is clearly defined."

$$ TRUE

GFALSE

Is the following statement true? "The value of the zero flag bit is $1$ if the result of the arithmetic operation is zero."

true

DFALSE

In the case of the $09000$ word, we perform sign extension to a double word size. What is the result in hexadecimal?

$0$xFFFF$9000$

$000009000$

$080009000$ none of the answers are correct

We calculate with $8-$bit, unsigned integers. What is the decimal sum of the decimal numbers $252$ and $4?$

$256$

$1$

$0$

none of the answers are correct

The addition of $256-$bit numbers can be traced back to $32-$bit addition instructions. Which statement is not included in the solution?

ADD

ADC

SBB

none of the answers are correct

Which of the following $4-$bit numbers is not a pseudo$-$tetrad?

$1111$

$1010$

$0101$

none of the answers are correct

$0$xDE $800000$ is a $32-$bit number according to the IEEE$-754$ standard. What is the hexadecimal form of $(-1)-$ times the number $?$

$0FC8000000$xCE$800001$

$04E800000$

none of the answers are correct

Is the following statement true: "The logical EXCLUSIVE$-$OR operation is associative."

TRUE FALSE

The superscalar architecture is characterized by:

vector registers at least two pipelines

more functional units for the IE phase

none of the answers

For the IA$32$ ISA, which register contains the address of the next instruction to be executed?

ESP

EBX $EIP$ none of the answers are correct

The speed of an HDD is $5400rpm.$ What is the turnaround time of a complete track in $ms?$

~~$0\mathrm{.}011ms$

$90ms$

~~$11ms$

none of the answers are correct

What is the data transfer rate for $4800$ baud and $2$ elementary signals?

$9600$ bit$/$s

$4800bi\frac{t}{s}$

$19200bi\frac{t}{s}$

none of the answers are correct

Is the following statement true? "UTF$-8$ is upwards compatible with $7-$bit ASCII."

TRUE

FALSE

Is the following statement true? "Colour production in color printers is additive.

TRUE FALSE