di ko na rin alam

Question 1

use continuous physical quantities to represent data and perform calculations. They operate with signals like voltage and are distinct from digital computers.

Answer 1

analog computers

Question 2

process information using discrete elements (bits) represented as 0s and 1s. They perform calculations through logical operations, enabling versatile tasks and precise results.

Answer 2

digital computers

Question 3

combine features of both analog and digital computers. They use analog for continuous data and digital for precise calculations, offering versatility across various applications.

Answer 3

hybrid computers

Question 4

used at places where we have approximate values e.g., speed, temperature, pressure, etc.

Answer 4

analog computer

Question 5

These computers can pick data from the devices without converting it into machine language. Some common examples of analog computers are speedometers, thermometers, etc.

Answer 5

analog computer

Question 6

designed in a way so that they can perform calculations and logical operations at high speed. These computers input raw data and with the help of the programs stored in their memory, it gives the final output.

Answer 6

digital computer

Question 7

can only understand binary language i.e., 0 and 1 hence, the raw data to be given as input is converted into 0 and 1 and then it is processed.

Answer 7

digital computers

Question 8

mixture of both analog and digital computers.

Answer 8

hybrid computer

Question 9

These computers can process both continuous and discrete data as they accept analog signals and then convert them into digital signals before processing

Answer 9

hybrid computers

Question 10

common uses of hybrid computers

Answer 10

airplanes and hospitals

Question 11

two components of computer

Answer 11

hardware and software

Question 12

brain of a computer, executing instructions and performing calculations to run software and process data for overall system functionality.

Answer 12

central processing unit

Question 13

is for temporary storage, and storage devices like hard drives store data permanently.

Answer 13

random access memory

Question 14

in a computer performs mathematical and logical operations, like addition and comparison, enabling the CPU to execute tasks and make decisions.

Answer 14

arithmetic logic unit

Question 15

include keyboards for trying, mice for pointing and clicking, touchscreens for direct interaction, and microphones for voice input.

Answer 15

input devices of computer

Question 16

include monitors for displaying information, printers for producing hard copies, speakers for audio output, and projectors for larger visual displays.

Answer 16

output devices of computer

Question 17

computer’s main circuit board, connecting and facilitating communication between components like CPU, RAM, and Peripherals. It provides the foundation for the system to foundation for the system to function.

Answer 17

motherboard

Question 18

Often referred to as the “brain” of the computer

Answer 18

central processing unit

Question 19

responsible for executing instructions and performing calculations. It interprets and carries out the commands from software and hardware components.

Answer 19

central processing unit

Question 20

provides fast but volatile storage

Answer 20

random access memory

Question 21

offers non-volatile, long-term storage for programs and files.

Answer 21

solid-state drive (ssd)

Question 22

part of a central processing unit (CPU) and performs all arithmetic and logic operations that must be performed on instruction words.

Answer 22

arithmetic logic unit

Question 23

enable users to interact with the computer. These are tools used to provide information and commands to the computer.

Answer 23

input devices

Question 24

include keyboards, mice, touchscreens, scanners, and microphones.

Answer 24

input devices

Question 25

allow users to input text, navigate interfaces, and interact with software.

Answer 25

keyboards

Question 26

offer similar functions on laptops and touch-enabled devices.

Answer 26

tochpads

Question 27

capture audio input, enabling voice commands, voice recordings, and communication in applications like voice chat and video conferencing.

Answer 27

microphones

Question 28

transmit processed information to users. These are tools that display or produce information from the computer.

Answer 28

output devices

Question 29

include monitors, printers, speakers, and headphones. They present the results of computations, provide visual feedback, or produce audio output.

Answer 29

output devices

Question 30

show visual data like tests and images, while printers create physical copies of documents.

Answer 30

monitors

Question 31

produce sound output, allowing us to hear audio from videos, music, or other multimedia on our computer.

Answer 31

speakers and headphones

Question 32

acts as the central hub connecting all the computer’s components. It houses the CPU, memory modules, expansion slots, and connectors, facilitating communication and data transfer between different parts of the system.

Answer 32

motherboard

Question 33

Computers excel at processing vast amounts of data quickly and accurately. They can manipulate numbers, perform complex calculations, analyze patterns, and generate reports

Answer 33

data processing

Question 34

computers can store massive amounts of information, from personal files to entire databases. They enable quick retrieval and organization of data for efficient access and analysis.

Answer 34

information storage

Question 35

They enable global connectivity and information sharing on an unprecedented scale.

Answer 35

communication

Question 36

allowing users to watch movies, listen to music, view images, play games, and edit videos. They provide immersive experiences and entertainment options for users of all ages

Answer 36

multimedia and entertainment

Question 37

father of computers

Answer 37

Charles Babbage

Question 38

first computer programmer

Answer 38

Lady Augusta Ada Lovelace

Question 39

wrote the first algorithm for Charles Babbage’s Analytical Engine in the ???

Answer 39

1840s

Question 40

the word bug originated in 1947 when a moth caused a malfunction in the ??. computer

Answer 40

Harvard Mark II

Question 41

world’s first computer mouse was invented by

Answer 41

Douglas Engelbart in 1964

Question 42

first mouse was made of

Answer 42

wood

Question 43

term Byte was coined by

Answer 43

dr. werner buchholz in 1956

Question 44

first electronic computer

Answer 44

ENIAC

Question 45

eniac weighed around ??? and used more than ?? vacuum tubes

Answer 45

30 tons & 17,000

Question 46

landed humans on the moon in 1969, had less processing power than a modern smartphone....

Answer 46

apollo 11 guidance computer

Question 47

computers based on data handling capacity

Answer 47

analog, digital, and hybrid computers

Question 48

standard keyboard layout includes

Answer 48

alphanumeric keys, punctuation keys, special function keys

Question 49

alphanumeric keys

Answer 49

1. numbers 2. letters 3. symbols 4. punctuations 5. special keys

Question 50

9 special keys

Answer 50

1. print screen 2. scroll lock 3. pause/break 4. insert 5. delete 6. home 7. end 8. page up 9. page down

Question 51

modifier keys

Answer 51

ctrl, alt, and chift

Question 52

used in combination with other keys to provide keyboard shortcuts

Answer 52

ctrl key

Question 53

used in combination with other keys to activate menu options without using a mouse.

Answer 53

alt

Question 54

used to cancel or exit from the current task or dialog box.

Answer 54

esc key

Question 55

used to perform special functions in some applications and operating systems.

Answer 55

function keys

Question 56

one of the modifier keys found on most computer keyboards that allows you to enter uppercase characters

Answer 56

shift

Question 57

alt + tab

Answer 57

switch between open windows

Question 58

typically used to access Help options in many applications and operating systems.

Answer 58

f1 key

Question 59

function key that is commonly used to rename selected files or folders. In a document, it may be used to switch between editing and selecting text.

Answer 59

f2

Question 60

function key that usually activates a search function within an application or file browser. For example, in a web browser, it will focus the cursor in the address bar so you can enter a new web address.

Answer 60

f3

Question 61

function key that is often used to open a new document or tab or to select an existing tab in applications like word processors, spreadsheets, and web browsers.

Answer 61

f4 key

Question 62

function key that typically refreshes or reloads the active window. In a web browser, it will refresh the current web page. In other applications, it may update content or reformat the layout.

Answer 62

f5 key

Question 63

function key that switches between applications or browser tabs in some software. It may also move the cursor to different panes or frames within the active window.

Answer 63

f6 key

Question 64

function key that usually activates the spelling checker in word-processing applications. It can also toggle special modes in some software, such as full-screen view.

Answer 64

f7 key

Question 65

key often activates keyboard shortcuts or hotkeys in applications and games. It may also be used to toggle between the normal cursor and a resize cursor in some graphics software.

Answer 65

f8 key

Question 66

typically activates menus relating to saving files or settings. For example, it may open a save as dialog box or save all open tabs in a browser.

Answer 66

f9

Question 67

function key that activates the menu bar in most applications and browsers, allowing you to navigate through options using the arrow keys.

Answer 67

f10 key

Question 68

function key that toggles full-screen mode on and off in applications like web browsers, word processors, and media players.

Answer 68

f11

Question 69

function key that opens the Developer Tools menu in most web browsers. In some applications, like word processors, it may toggle additional toolbars and panes.

Answer 69

f12 key

Question 70

key on your keyboard that provides quick access to various Windows features.

Answer 70

window key

Question 71

father of the computer who laid the foundation for modern computing with his groundbreaking designs

Answer 71

charles babbage

Question 72

most powerful and expensive computer that is used for tasks that require a lot of power, such as weather forecasting and nuclear research

Answer 72

supercomputers

Question 73

less powerful than supercomputers but still very expensive

Answer 73

mainframes

Question 74

capabilities of computer systems

Answer 74

high-spreed processing accuracy and precision automation of tasks vast storage capacity multitasking capabilities connectivity and networking data analysis and decision-making

Question 75

limitations of computer system

Answer 75

1. lack of creativity 2. dependence on human instructions 3. hardware and software constraints 4. vulnerability to cyber threats 5. limited emotional intelligence 6. energy consumption 7. high initial costs

Question 76

promises exponential increases in processing power, potentially solving problems that are currently unsolvable

Answer 76

quantum computing