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C1 Level Wordlist /

Computer Science

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1-
accessible
2-
analog
3-
antivirus
4-
compatible
5-
down
6-
interactive
7-
Bluetooth
8-
Blu-ray
9-
USB
10-
byte
11-
kilobyte
12-
megabyte
13-
gigabyte
14-
terabyte
15-
backup
16-
storage
17-
flash drive
18-
hard disk drive
19-
cyberspace
20-
data processing
21-
default
22-
cursor
23-
display
24-
drop-down menu
25-
hacker
26-
help desk
27-
interface
28-
microprocessor
29-
multimedia
30-
personal computer
31-
workstation
32-
spreadsheet
33-
to computerize
34-
to encode
35-
to format
36-
to load
37-
to retrieve
38-
to upgrade
39-
to game
40-
random-access memory
41-
solid-state drive
42-
Domain Name System
accessible
accessible
Adjective
a
æ
c
k
c
s
e
ɛ
ss
s
i
ə
b
b
b
l
l
e
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(of a place) able to be reached, entered, etc.

example
Example
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The wheelchair ramp made the building more accessible to people with mobility impairments.
The online platform provides accessible resources for students to access course materials from anywhere.

Word Family

access

Noun

accessible

Adjective

accessibility

Noun

accessibility

Noun

inaccessible

Adjective

inaccessible

Adjective

unaccessible

Adjective

unaccessible

Adjective
analog
analog
Adjective
a
æ
n
n
a
ə
l
l
o
ɔ
g
g

relating to or using signals in which information is represented through constant changing of physical quantities

Word Family

access

Noun

accessible

Adjective

accessibility

Noun

accessibility

Noun

inaccessible

Adjective

inaccessible

Adjective

unaccessible

Adjective

unaccessible

Adjective
antivirus
Adjective
a
æ
n
n
t
t
i
i
v
v
i
r
r
u
ə
s
s

having the ability to protect a system from viruses by finding and destroying them

Word Family

access

Noun

accessible

Adjective

accessibility

Noun

accessibility

Noun

inaccessible

Adjective

inaccessible

Adjective

unaccessible

Adjective

unaccessible

Adjective
compatible
Adjective
c
k
o
ə
m
m
p
p
a
æ
t
t
i
ə
b
b
ə
l
l
e

having the ability to work with different devices, machines, etc.

Word Family

access

Noun

accessible

Adjective

accessibility

Noun

accessibility

Noun

inaccessible

Adjective

inaccessible

Adjective

unaccessible

Adjective

unaccessible

Adjective
down
Adjective
d
d
o
a
w
ʊ
n
n

(of a computer system) not working temporarily or properly

Word Family

access

Noun

accessible

Adjective

accessibility

Noun

accessibility

Noun

inaccessible

Adjective

inaccessible

Adjective

unaccessible

Adjective

unaccessible

Adjective
interactive
Adjective
i
ɪ
n
n
t
e
ɜ
r
r
a
æ
c
k
t
t
i
ɪ
v
v
e

describing the constant passage of data between a computer or other device and a user

Word Family

access

Noun

accessible

Adjective

accessibility

Noun

accessibility

Noun

inaccessible

Adjective

inaccessible

Adjective

unaccessible

Adjective

unaccessible

Adjective
Bluetooth
Bluetooth
noun
uk flag
/blˈuːtuːθ/

the system through which different devices can be connected to each other over short distances wirelessly using radio waves

What is "Bluetooth"?

Bluetooth is a wireless technology that allows devices to communicate with each other over short distances. It is commonly used to connect devices like smartphones, headphones, speakers, and computers without the need for cables. Bluetooth works by using radio waves to transmit data between devices within a range of about 30 feet or 10 meters. It is widely used for hands-free calling, streaming music, transferring files, and connecting various accessories. Bluetooth is popular for its convenience, ease of use, and low energy consumption, making it a standard feature in many modern electronic devices.

Word Family

access

Noun

accessible

Adjective

accessibility

Noun

accessibility

Noun

inaccessible

Adjective

inaccessible

Adjective

unaccessible

Adjective

unaccessible

Adjective
Blu-ray
Blu-ray
noun
uk flag
/blˈuːɹˈeɪ/

a type of blue disk on which large data such as high-definition videos can be stored

Word Family

access

Noun

accessible

Adjective

accessibility

Noun

accessibility

Noun

inaccessible

Adjective

inaccessible

Adjective

unaccessible

Adjective

unaccessible

Adjective
USB
USB
noun
uk flag
/jˌuːˌɛsbˈiː/

the technology or system for connecting other devices to a computer

Word Family

access

Noun

accessible

Adjective

accessibility

Noun

accessibility

Noun

inaccessible

Adjective

inaccessible

Adjective

unaccessible

Adjective

unaccessible

Adjective
byte
noun
b
b
y
t
t
e

a unit for measuring the size of computer data that equals 8 bits

Word Family

access

Noun

accessible

Adjective

accessibility

Noun

accessibility

Noun

inaccessible

Adjective

inaccessible

Adjective

unaccessible

Adjective

unaccessible

Adjective
kilobyte
noun
k
k
i
ɪ
l
l
o
b
b
y
t
t
e

a unit for measuring computer data that equals 1024 bytes

Word Family

access

Noun

accessible

Adjective

accessibility

Noun

accessibility

Noun

inaccessible

Adjective

inaccessible

Adjective

unaccessible

Adjective

unaccessible

Adjective
megabyte
noun
m
m
e
ɛ
g
g
a
ə
b
b
y
t
t
e

a unit for measuring computer data that equals 1024 kilobytes

Word Family

access

Noun

accessible

Adjective

accessibility

Noun

accessibility

Noun

inaccessible

Adjective

inaccessible

Adjective

unaccessible

Adjective

unaccessible

Adjective
gigabyte
noun
g
g
i
ɪ
g
g
a
ə
b
b
y
t
t
e

a unit for measuring computer data that equals 1024 megabytes

Word Family

access

Noun

accessible

Adjective

accessibility

Noun

accessibility

Noun

inaccessible

Adjective

inaccessible

Adjective

unaccessible

Adjective

unaccessible

Adjective
terabyte
noun
t
t
e
ɛ
r
r
a
ə
b
b
y
t
t
e

a unit for measuring computer data that equals 1024 gigabytes

Word Family

access

Noun

accessible

Adjective

accessibility

Noun

accessibility

Noun

inaccessible

Adjective

inaccessible

Adjective

unaccessible

Adjective

unaccessible

Adjective
backup
noun
b
b
a
æ
ck
k
u
ə
p
p

(computing) a copy of computer data that can be used to restore lost or damaged data

Word Family

access

Noun

accessible

Adjective

accessibility

Noun

accessibility

Noun

inaccessible

Adjective

inaccessible

Adjective

unaccessible

Adjective

unaccessible

Adjective
storage
noun
s
s
t
t
o
ɔ
r
r
a
ə
g
ʤ
e

the keeping of data on a computer, etc.

Word Family

access

Noun

accessible

Adjective

accessibility

Noun

accessibility

Noun

inaccessible

Adjective

inaccessible

Adjective

unaccessible

Adjective

unaccessible

Adjective
flash drive
flash drive
noun
uk flag
/flˈæʃ dɹˈaɪv/

a small device used for storing data or transferring data between electronic devices

Grammatical Information:

compound noun

Word Family

access

Noun

accessible

Adjective

accessibility

Noun

accessibility

Noun

inaccessible

Adjective

inaccessible

Adjective

unaccessible

Adjective

unaccessible

Adjective
hard disk drive
hard disk drive
noun
uk flag
/hˈɑːɹd dˈɪsk/

a disk on which data is stored, either inside or outside a computer

Grammatical Information:

compound noun

Word Family

access

Noun

accessible

Adjective

accessibility

Noun

accessibility

Noun

inaccessible

Adjective

inaccessible

Adjective

unaccessible

Adjective

unaccessible

Adjective
cyberspace
noun
c
s
y
b
b
e
ɜ
r
r
s
s
p
p
a
c
s
e

the non-physical space in which communication over computer networks takes place

Word Family

access

Noun

accessible

Adjective

accessibility

Noun

accessibility

Noun

inaccessible

Adjective

inaccessible

Adjective

unaccessible

Adjective

unaccessible

Adjective
data processing
noun
uk flag
/dˈeɪɾə pɹˈɑːsɛsɪŋ/

a set of actions done on data by a computer to have a certain result

Word Family

access

Noun

accessible

Adjective

accessibility

Noun

accessibility

Noun

inaccessible

Adjective

inaccessible

Adjective

unaccessible

Adjective

unaccessible

Adjective
default
noun
d
d
e
ɪ
f
f
au
ɔ
l
l
t
t

a predefined option based on which a computer or other device performs a particular task unless it is changed

Word Family

access

Noun

accessible

Adjective

accessibility

Noun

accessibility

Noun

inaccessible

Adjective

inaccessible

Adjective

unaccessible

Adjective

unaccessible

Adjective
cursor
cursor
noun
c
k
u
ɜ
r
r
s
s
o
ɜ
r
r

a movable mark on a computer screen that indicates where the user is working

Word Family

access

Noun

accessible

Adjective

accessibility

Noun

accessibility

Noun

inaccessible

Adjective

inaccessible

Adjective

unaccessible

Adjective

unaccessible

Adjective
display
display
noun
d
d
i
ɪ
s
s
p
p
l
l
a
e
y
ɪ

an electronic device that visually presents data

What is a "display"?

A display is a screen used to show visual information, such as images, text, or video. It can be found in devices like televisions, computers, smartphones, and digital signs. Displays come in various types, such as LCD, LED, and OLED, each offering different levels of brightness, color quality, and resolution. The purpose of a display is to present content in a way that is clear and easy to view, allowing users to interact with or consume the information being shown.

Word Family

access

Noun

accessible

Adjective

accessibility

Noun

accessibility

Noun

inaccessible

Adjective

inaccessible

Adjective

unaccessible

Adjective

unaccessible

Adjective
drop-down menu
drop-down menu
noun
uk flag
/dɹˈɑːpdˌaʊn mˈɛnjuː/

a list that presents different options on a computer screen and remains there until one option is chosen by the user

Word Family

access

Noun

accessible

Adjective

accessibility

Noun

accessibility

Noun

inaccessible

Adjective

inaccessible

Adjective

unaccessible

Adjective

unaccessible

Adjective
hacker
hacker
noun
h
h
a
æ
ck
k
e
ɜ
r
r

someone who uses computers to illegally access someone else's computer or phone

Word Family

access

Noun

accessible

Adjective

accessibility

Noun

accessibility

Noun

inaccessible

Adjective

inaccessible

Adjective

unaccessible

Adjective

unaccessible

Adjective
help desk
noun
uk flag
/hˈɛlp dˈɛsk/

a service that gives information and support to the computer users, particularly those who work in the same place

Grammatical Information:

compound noun

Word Family

access

Noun

accessible

Adjective

accessibility

Noun

accessibility

Noun

inaccessible

Adjective

inaccessible

Adjective

unaccessible

Adjective

unaccessible

Adjective
interface
noun
i
ɪ
n
n
t
e
ɜ
r
r
f
f
a
c
s
e

(computing) the program through which a user can interact with a computer, especially its design and appearance

Word Family

access

Noun

accessible

Adjective

accessibility

Noun

accessibility

Noun

inaccessible

Adjective

inaccessible

Adjective

unaccessible

Adjective

unaccessible

Adjective
microprocessor
microprocessor
noun
m
m
i
c
k
r
r
o
p
p
r
r
o
ɑ
c
s
e
ɛ
ss
s
o
ɜ
r
r

a very small piece of electronic equipment in a computer programed to control all the functions of the CPU

Word Family

access

Noun

accessible

Adjective

accessibility

Noun

accessibility

Noun

inaccessible

Adjective

inaccessible

Adjective

unaccessible

Adjective

unaccessible

Adjective
multimedia
noun
m
m
u
ə
l
l
t
t
i
m
m
e
i
d
d
ia

the application of images, text, audio, and video files collectively

Word Family

access

Noun

accessible

Adjective

accessibility

Noun

accessibility

Noun

inaccessible

Adjective

inaccessible

Adjective

unaccessible

Adjective

unaccessible

Adjective
personal computer
personal computer
noun
uk flag
/pˈɜːsənəl kəmpjˈuːɾɚ/

a compact electronic device designed for individual use, capable of performing various tasks such as word processing, internet browsing, and multimedia applications

What is a "personal computer"?

A personal computer (PC) is a type of computer designed for individual use, typically in homes, schools, or offices. It includes a central processing unit (CPU), memory, storage, and input devices like a keyboard and mouse. Personal computers are used for a variety of tasks, such as browsing the internet, creating documents, playing games, and managing files. They run software applications that perform different functions, making them versatile tools for both work and entertainment.

Word Family

access

Noun

accessible

Adjective

accessibility

Noun

accessibility

Noun

inaccessible

Adjective

inaccessible

Adjective

unaccessible

Adjective

unaccessible

Adjective
workstation
noun
w
w
o
ɜ
r
r
k
k
s
s
t
t
a
t
ʃ
io
ə
n
n

a desktop computer that is connected to a network, which is more upgraded than a personal computer

Grammatical Information:

compound noun

Word Family

access

Noun

accessible

Adjective

accessibility

Noun

accessibility

Noun

inaccessible

Adjective

inaccessible

Adjective

unaccessible

Adjective

unaccessible

Adjective
spreadsheet
spreadsheet
noun
s
s
p
p
r
r
ea
ɛ
d
d
sh
ʃ
ee
i
t
t

a computer program used for calculating data, especially financial data

Word Family

access

Noun

accessible

Adjective

accessibility

Noun

accessibility

Noun

inaccessible

Adjective

inaccessible

Adjective

unaccessible

Adjective

unaccessible

Adjective
to computerize
to computerize
Verb
c
k
o
ə
m
m
p
p
u
ju
t
t
e
ɜ
r
r
i
z
z
e

to use computers to perform a task or do a particular job

Word Family

access

Noun

accessible

Adjective

accessibility

Noun

accessibility

Noun

inaccessible

Adjective

inaccessible

Adjective

unaccessible

Adjective

unaccessible

Adjective
to encode
to encode
Verb
e
ɛ
n
n
c
k
o
d
d
e

to transform data into a coded form

Grammatical Information:

transitive

Word Family

access

Noun

accessible

Adjective

accessibility

Noun

accessibility

Noun

inaccessible

Adjective

inaccessible

Adjective

unaccessible

Adjective

unaccessible

Adjective
to format
Verb
f
f
o
ɔ
r
r
m
m
a
æ
t
t

(computing) to prepare a storage device, such as a hard drive or USB, for use by deleting all the data on it and setting it up for a specific file system

Grammatical Information:

transitive

Word Family

access

Noun

accessible

Adjective

accessibility

Noun

accessibility

Noun

inaccessible

Adjective

inaccessible

Adjective

unaccessible

Adjective

unaccessible

Adjective
to load
Verb
l
l
oa
d
d

to move data or a program from a local storage device into the memory of a computer

Grammatical Information:

transitive

Word Family

access

Noun

accessible

Adjective

accessibility

Noun

accessibility

Noun

inaccessible

Adjective

inaccessible

Adjective

unaccessible

Adjective

unaccessible

Adjective
to retrieve
Verb
r
r
e
i
t
t
r
r
ie
i
v
v
e

to find and collect data stored on a computer

Grammatical Information:

transitive

Word Family

access

Noun

accessible

Adjective

accessibility

Noun

accessibility

Noun

inaccessible

Adjective

inaccessible

Adjective

unaccessible

Adjective

unaccessible

Adjective
to upgrade
to upgrade
Verb
u
ə
p
p
g
g
r
r
a
d
d
e

to improve a machine, computer system, etc. in terms of efficiency, standards, etc.

Grammatical Information:

transitive

Word Family

access

Noun

accessible

Adjective

accessibility

Noun

accessibility

Noun

inaccessible

Adjective

inaccessible

Adjective

unaccessible

Adjective

unaccessible

Adjective
to game
Verb
g
g
a
m
m
e

to play computer or video games

Word Family

access

Noun

accessible

Adjective

accessibility

Noun

accessibility

Noun

inaccessible

Adjective

inaccessible

Adjective

unaccessible

Adjective

unaccessible

Adjective
random-access memory
random-access memory
noun
uk flag
/ɹˈændəmˈæksɛs mˈɛmɚɹi/

a type of computer memory tasked with temporarily storing data for a quicker access

Grammatical Information:

compound noun

Word Family

access

Noun

accessible

Adjective

accessibility

Noun

accessibility

Noun

inaccessible

Adjective

inaccessible

Adjective

unaccessible

Adjective

unaccessible

Adjective
solid-state drive
noun
uk flag
/sˈɑːlɪdstˈeɪt dɹˈaɪv/

a device fixed in a computer to store information, which retains data if power goes off and is much faster compared to a hard drive

Grammatical Information:

compound noun

Word Family

access

Noun

accessible

Adjective

accessibility

Noun

accessibility

Noun

inaccessible

Adjective

inaccessible

Adjective

unaccessible

Adjective

unaccessible

Adjective
Domain Name System
phrase
uk flag
/dˌiːˌɛnˈɛs/

a decentralized naming system used on the Internet to translate human-readable domain names into numerical IP addresses that computers can understand, enabling the proper routing of data between devices and servers

What is "DNS"?

DNS, or Domain Name System, is a system that translates human-readable website names, like www.example.com, into numerical IP addresses that computers use to identify each other on the Internet. It acts as a phonebook for the internet, helping users access websites by typing in easy-to-remember names instead of complex numbers. When a user types a website address into their browser, DNS servers quickly find the corresponding IP address, allowing the user to connect to the correct website. Without DNS, people would need to remember long strings of numbers to visit websites.

Word Family

access

Noun

accessible

Adjective

accessibility

Noun

accessibility

Noun

inaccessible

Adjective

inaccessible

Adjective

unaccessible

Adjective

unaccessible

Adjective

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You learned 42 words from Lesson 13. To improve learning and review vocabulary, start practicing.

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