ex 1

Question 1

The invention of this product replaced vacuum tubes and made computers much smaller and faster. However, it was eventually replaced by another invention. Guess the name of this product.

Answer 1

Transistor

Question 2

This invention helped make computers much smaller and faster. What is it called?

Answer 2

Integrated Circuit

Question 3

This person created a machine called ‘The Analytical Engine.’ His ideas were some of the first that led to the creation of computers. Guess the name of this person. He is the father of computers.

Answer 3

Charles Babbage

Question 4

This person created what is now known as the first computer program. The program was made to help the Analytical Engine calculate numbers. Guess the name of this person.

Answer 4

Ada Lovelace

Question 5

Steve Jobs and Steve Wozniak built their first computer using a wooden box. Their company has grown and is still around today. The name of the company is:

Answer 5

Apple

Question 6

The first generation of computers used vacuum tubes. Why were they replaced by the transistor?

Answer 6

Vacuum tubes consumed a lot of energy and generated excessive heat

Question 7

An operating system is responsible for:

Answer 7

Memory management

Question 8

Example of application software is:

Answer 8

to allow users to communicate with the computer

Question 9

Data science is:

Answer 9

The study and analysis of data.

Question 10

The five main components of computers are:

Answer 10

ram, CPU, Input, output, & hard drive

Question 11

The input of the linker is _______ while the input to compiler are ________

Answer 11

Object code, high level language

Question 12

Electronic Numerical Integrator And Computer (ENIAC)

Answer 12

Was the first electronic computer used vacuum tubes

Question 13

Charles Babbage invented:

Answer 13

The first mechanical computer

Question 14

ALTAIR, 1975 is an:

Answer 14

Electronic computer used integrated circuit

Question 15

First Generation of computing has:

Answer 15

Magnetic drum and assembly language

Question 16

Second Generation of computing has:

Answer 16

Transistors and high level language

Question 17

Fourth Generation of computing has:

Answer 17

Integrated circuits and operating systems

Question 18

Examples of non-Volatile memories are:

Answer 18

DVD, ROM, CD, flash memory

Question 19

The speed of following devices from highest to lowest:

Answer 19

Registers, Cache, RAM, DVD

Question 20

The following 7 steps when you open a computer and run your first source program.

Answer 20

1)power on

2)Basic Input/Output System (BIOS) Initialization: The BIOS, stored in a ROM chip on the motherboard, initializes essential

3)Boot Loader: The BIOS loads the boot loader from the hard drive. The boot loader is a small program responsible for loading the operating system kernel into memory.

4) Kernel Initialization

5) User Space Initialization

6) User Interaction: the user interacts with the computer through the GUI or command-line interface

7) Running the First Source Code

Question 21

The high level language is an object code
True

False

Answer 21

false

Question 22

Responds to user requests and schedule tasks is type of application software
True

False

Answer 22

false

Question 23

Moor’s law is the idea that the number of transistors on integrated circuits can be doubled every two years.

True
 	False

Answer 23

true

Question 24

y value for this pseudocode= 80
set a= 20, b=1, c=3, x=2
y=a(x*x) + bx +c
Print y

True

False

Answer 24

false

86=20(22)+12+3
y =86

Question 25

A representation of an algorithm

Answer 25

Program

Question 26

What is the output of the following code: v1= [2,4,6], v2 = [2,3,4], a=[v1[i]*v2[i] for i in range(len (v1))]? print(a)

Answer 26

[4, 12, 24]

Question 27

What is the output of the following code: v = [2,4,6], a=[{x: x**2} for x in v]? print(a)

Answer 27

[{2: 4}, {4: 16}, {6: 36}]

Question 28

What is the output of the following code: v = [12,7,1], a=[v[i] % 4 for i in range(len(v))]? print(a)

Answer 28

[0, 3, 1]

Question 29

What does print("abcdefg"[1:4]) output?

Answer 29

bcd

Question 30

Does the code print("abcdef"[-3]) generate the letter d?

Answer 30

True

Question 31

What is the output of the following code: a=[5, 23,50,20,95], for i in range(len(a)): if(a[i] %5 == 0): print(a[i], end=" ")?

Answer 31

5,50,20,95

Question 32

Does the following code generate [ 1 0, 1 1, 2 0, 2 1]? for i in range(1,3): for j in range(2): print (i, j,end=', ')

Answer 32

True

Question 33

Can the equation 1abc=100 be written in Python?

Answer 33

False

Question 34

Does the following code have syntax errors? for i in range(1,3) for j in range(2) print (i, j,end=', ')

Answer 34

True

Question 35

If a = (23, "abc", 4.56, (2,3), 'def'), is a[0]= 23 true?

Answer 35

True

Question 36

Was the analytical engine the world's first electronic digital computer?

Answer 36

false

Question 37

Was the first electronic programmable computer, ENIAC, completed just after World War II?

Answer 37

True

Question 38

Is computer science the study of how to write computer programs?

Answer 38

False

Question 39

What revolution enabled us to implement algorithms that automated repetitive mental tasks?

Answer 39

computer

Question 40

Which language characterizes the first software generation?

Answer 40

machine language

Question 41

what is computer science?

Answer 41

Computer Science is the study of computer systems including the hardware and software. Computer science include programming, designing computer systems, dealing with human computer interaction (HCI),data base, Networking, Front and back end for websites, computer animation, robotics, etc.

Question 42

Data Science

Answer 42

Data Science is the study and analysis of data. In order to analyze the data, we need to extract it from the database.

Question 43

Algorithm

Answer 43

set of steps that defines how a task is performed

Question 44

Program

Answer 44

A representation of an algorithm

Question 45

Programming

Answer 45

The process of developing a program

Question 46

Software

Answer 46

Equipment; the physical elements of the system

Question 47

Programming language

Answer 47

set of instructions written by a programmer to deliver instructions to the computer to perform a task

Question 48

Static RAM

Answer 48

Made up of flip flops Small in size Much Expensive Consume less power Low storage capacity Fast Data sustain with time

Question 49

Dynamic RAM

Answer 49

Made up of Capacitors larger in size Less expensive Low storage capacity slow Data losses with time, need refreshing circuit

Question 50

Supercomputers

Answer 50

The fastest and most powerful computers, capable of processing vast amounts of data in real time. Used for highly complex calculations, simulations, and data-intensive tasks.  Extremely high processing power.  Capable of parallel processing.  Expensive and large in size.  Require specialized cooling systems. Applications:  Climate modeling and weather forecasting.  Scientific research (e.g., simulations of nuclear reactions).  Cryptanalysis.  Space exploration.

Question 51

Mainframe Computers

Answer 51

Large, powerful computers designed for handling vast amounts of data and supporting multiple users simultaneously. Used for enterprise-level applications requiring reliability and scalability.  High reliability and uptime.  Support for thousands of users.  Extensive storage capacity.  Centralized processing. Applications:  Banking and financial transactions.  Inventory management for large retailers.  Airline reservation systems.  Government data centers.

Question 52

Microcomputers (Personal Computers - PCs)

Answer 52

Computers designed for individual use, including desktops, laptops, tablets, and smartphones Used for general-purpose tasks like word processing, internet browsing, gaming, and multimedia.  Compact and affordable.  User-friendly interfaces.  Wide range of configurations.  Office work.  Education and e-learning.  Gaming and entertainment.  Personal productivity.

Question 53

Workstations

Answer 53

High-performance computers designed for technical or scientific tasks. Provide specialized processing power for demanding applications.  Powerful processors and graphics capabilities.  Typically used by professionals.  Expensive compared to standard PCs. Applications:  Computer-aided design (CAD).  3D rendering and animation.  Scientific modeling.  Software development.

Question 54

Servers

Answer 54

Computers designed to manage and provide resources to other devices (clients) in a network. Handle requests, store data, and manage network operations.  High reliability and uptime.  Ability to manage multiple connections simultaneously.  Scalable configurations. Applications:  Web hosting.  Database management.  Cloud computing.  Email and file sharing services

Question 55

Embedded Systems

Answer 55

Specialized computers integrated into devices to perform dedicated tasks. Control or monitor specific functions of the host device. Characteristics:  Low power consumption.  Real-time operation.  Limited user interface. Applications:  Automotive systems (e.g., ABS, navigation).  Consumer electronics (e.g., washing machines, smart TVs).  Medical devices (e.g., pacemakers, diagnostic tools)

Question 56

Hybrid Computers

Answer 56

Process both continuous and discrete data. Analog components for measuring.  Digital components for computation.  Highly specialized for niche applications. Applications:  Medical applications (e.g., ECG machines).  Industrial process control.  Weather prediction

Question 57

Cloud computers

Answer 57

Cloud Computing is a model of computing that provides on-demand access to shared computing resources (like servers, storage, applications, and services) over the internet. Cloud: A metaphor for the internet, emphasizing the delivery of computing services remotely

Question 58

In merge sorting algorithm, the first part is to merge the individual items into one list true or false

Answer 58

false

Question 59

If a list has the following items [ 56, 6, 87, 10], then the list after the pseudo code is [ 87, 56, 10,6] Set n as the length of list Set i=0 while i < n-1 set j=0 while j < n-i if list[j] < list[j+1] swap(list[j], list[j+1] increment j by 1 increment i by 1 true or false

Answer 59

true