CAOPRELIM

Question 1

Which component is often referred to as the “brain” of the computer?

Motherboard
Hard drive
Microprocessor
X RAM

Answer 1

Microprocessor

Question 2

Gordon Moore’s observation, known as______ states that the number of transistors on a microchip doubles about every two years.

Answer 2

Moore’s Law

Question 3

The_____ designed by Charles Babbage was an early mechanical calculator capable of solving complex mathematical problems.

Answer 3

Difference Engine

Question 4

computer memory measurement, what comes after Terabyte in terms of increasing capacity?

Petabyte
Gigabyte
Zettabyte
Exabyte

Answer 4

Petabyte

Question 5

In binary, each digit is called a____ and 8 of these make up one byte.

Answer 5

bit

Question 6

Which of the following represents one billion bytes?

Terabyte
Petabyte
Gigabyte
Megabyte

Answer 6

Gigabyte

Question 7

The “von Neumann bottleneck” refers to:

The limited processing speed of early CPUs

The difficulty in programming early computers

The high cost of computer memor

The single data path between CPU and main memory

Answer 7

The single data path between CPU and main memory

Question 8

In the decimal number system, the value of a digit depends solely on the digit itself, not its position.

True False

Answer 8

False

Question 9

What does ROM stand for?

Rapid Output Management
Read-Only Memory
Runtime Optimization Module
Random Operating Memory

Answer 9

Read-Only Memory

Question 10

Which type of port sends data as a single pulse along at least eight data lines?

Serial port
USB port
Ethernet port
Parallel port

Answer 10

Parallel port

Question 11

Which of the following is an example of secondary storage?
RAM
CPU
registers Cache
Hard disk drive

Answer 11

Hard disk drive

Question 12

The ASCII code uses 7 bits and has 256 possible codes.

True False

Answer 12

False

Question 13

The ASCII code uses 7 bits and has 256 possible codes.

True False

Answer 13

False

Question 14

What does the Principle of Equivalence of Hardware and Software state?

Any task done by software can also be done using hardware, and vice versa.

Hardware is always faster than software.

Hardware and software cannot perform the same tasks.

Software is always more efficient than hardware.

Answer 14

Any task done by software can also be done using hardware, and vice versa.

Question 15

ISCII is a universal encoding standard used to support all languages worldwide.

True False

Answer 15

False

Question 16

In the decimal number system, what does the value of a digit depend on?

The sum of all digits in the number.
Its position within the number.
Its numerical value only.
The total number of digits in the number.

Answer 16

Its position within the number.

Question 17

What is the primary difference between computer organization and computer architecture?

Neither deals with the physical or logical aspects of computer systems.

Architecture deals with physical aspects, while organization focuses on logical aspects.

Organization deals with physical aspects, while architecture focuses on logical aspects.

Organization and architecture are identical concepts.

Answer 17

Organization deals with physical aspects, while architecture focuses on logical aspects.

Question 18

Organization deals with physical aspects, while architecture focuses on logical aspects. In a binary number, the leftmost digit is called the least significant bit (LSB).

True False

Answer 18

False

Question 19

What is the primary limitation of the classic von Neumann architecture that led to the development of alternative models?

Limited input/output capabilities
Lack of memory capacity
Single data path between CPU and memory Slow processing speed

Answer 19

Single data path between CPU and memory

Question 20

What is the primary function of the Control Level in the computer level hierarchy?

To compile high-level languages
To decode and execute instructions
To provide a user interface
To implement digital circuits

Answer 20

To decode and execute instructions

Question 21

Which of the following best describes Unicode?

A unique numeric value for every character across languages.

A code for representing only English characters.

An outdated standard for digital communication.

A coding system for mathematical symbols only

Answer 21

A unique numeric value for every character across languages.

Question 22

What is the primary advantage of using the binary number system in digital systems?

It’s easier to implement with two-state electric signals.

It’s the most common system used by humans.

It uses fewer digits than the decimal system.

It’s more accurate for mathematical calculations.

Answer 22

It’s easier to implement with two-state electric signals.

Question 23

How many unique codes can be represented using the 7-bit ASCII system?
512
128
256
64

Answer 23

128

Question 24

Which of the following is NOT typically included in the alphanumeric code set?
Digits
Punctuation marks
Foreign currency symbols
Lowercase letters.

Answer 24

Foreign currency symbols

Question 25

The invention of the _____ led to the second generation of computers, which were smaller and more reliable.

Answer 25

transistors

Question 26

Which organization establishes worldwide standards for computer hardware and software? IEEE ITU ISO ANSI

Answer 26

ISO

Question 27

In the computer level hierarchy, which level is also known as the Instruction Set Architecture (ISA) Level? System Software Level Assembly Language Level Machine Leve Control Level

Answer 27

Machine Leve

Question 28

The term "BUNCH" in the computer industry of the third generation stood for: Babbage, Univac, NCR, Cray, and Honeywell Burroughs, Unisys, NCR, Control Data, and Honeywell Boeing, Univac, Nixdorf, Compaq, and Hewlett-Packard Bell, Unix, Netscape, Commodore, and Hitachi

Answer 28

Burroughs, Unisys, NCR, Control Data, and Honeywell

Question 29

DNA computing, as demonstrated by Leonard Adleman, was used to solve which famous problem? The halting problem The four-color map problem The P vs NP problem The traveling salesman problem

Answer 29

The traveling salesman problem

Question 30

What is the primary purpose of cache memory? To provide long-term storage. To connect to external devices. To display output on the screen. To increase the speed of the processor.

Answer 30

To increase the speed of the processor.

Question 31

______speeds are measured in MHz or GHz.

Answer 31

Processor, processor

Question 32

Which computer is considered the first mass-produced computer? UNIVACI IBM 650 ENIAC ABC (Atanasoff Berry Computer)

Answer 32

IBM 650

Question 33

______send data as a series of pulses along one or two data lines.

Answer 33

Serial ports, Serial port, serial ports, serial port, Serial Ports

Question 34

What is the clock speed of a processor typically measured in? Bits per second Bytes per second Cycles per minute Hertz (Hz)

Answer 34

Hertz (Hz)

Question 36

The complete set of characters or symbols in a computer system is called____

Answer 36

Alphanumeric code

Question 37

The first generation of computers used _____ as their primary electronic component.

Answer 37

vacuum tubes

Question 38

How many uppercase letters are included in the typical alphanumeric code set? 26 36 30 20

Answer 38

26

Question 39

Which of the following is NOT a characteristic of von Neumann architecture? Stored-program concept Sequential instruction processing Multiple data paths between CPU and memory Central Processing Unit (CPU)

Answer 39

Multiple data paths between CPU and memory

Question 40

What is the primary purpose of ASCII? To represent characters as numerical values. To create graphical user interfaces. To encrypt information. To compress data.

Answer 40

To represent characters as numerical values.

Question 41

The______ controls and coordinates the order and execution of program instructions in a computer.

Answer 41

control unit