Computer Skills Course: Bits, Bytes, Kilobytes, Megabytes, Gigabytes, Terabytes (OLD VERSION)
Summary
TLDRThis educational video script delves into the binary system, explaining that data in computers is stored using bits (binary digits). It clarifies that a 'byte' consists of eight bits, which can store a single letter or symbol. The script progresses to define larger units of data storage, such as kilobytes (1,000 bytes), megabytes (1,000 kilobytes), gigabytes (1,000 megabytes), and terabytes (1,000 gigabytes). It provides historical context with examples like the 5.25-inch floppy disk and concludes with the affordability and capacity of modern storage devices, illustrating the evolution of digital storage.
Takeaways
- 💾 Computers use the binary system, which consists of only two numbers: 1 and 0.
- 🔑 A 'bit' is the smallest unit of data in a computer, representing a binary digit.
- 📚 Bits are used to store various types of information, such as text, colors, and sounds.
- 🧩 A 'byte' is a collection of eight bits, used to store basic units of information like letters or symbols.
- 📖 One kilobyte (KB) is equivalent to 1,000 bytes, which can hold about two pages of text.
- 💿 The 5 and 1/4 inch floppy disk could store 360 kilobytes, a common storage medium in the late 1970s and early 1980s.
- 📚 A 'megabyte' (MB) is a collection of 1,000 kilobytes, enough to store about five large books or one minute of music.
- 📀 The 3 and 1/2 inch floppy disk from the 1980s could hold 1.4 megabytes, a significant capacity at the time.
- 🎵 A 'gigabyte' (GB) is a collection of 1,000 megabytes, capable of holding about 400 books or 16 hours of music.
- 💿 A 'terabyte' (TB) is a collection of 1,000 gigabytes, enough to store 400,000 large books or two years of continuous music.
Q & A
What is the binary system and how does it relate to computer data storage?
-The binary system is a numeral system that uses only two numbers, one and zero. In computer data storage, these binary digits, known as bits, are used to represent and store all kinds of information, from text to images and sounds.
What is the term for the smallest unit of data in a computer?
-The smallest unit of data in a computer is called a bit, which stands for binary digit.
How many bits make up a byte?
-A byte is made up of eight bits.
What is the significance of a byte in terms of text storage?
-One byte is typically the amount of space needed to store one single letter or symbol in a text document.
How many bytes are there in a kilobyte?
-There are 1,000 bytes in a kilobyte, although technically there are 1,024 bytes due to the binary system where numbers are in powers of two.
What was the storage capacity of a 5 and 1/4 inch floppy disc in the late 1970s and early 1980s?
-A 5 and 1/4 inch floppy disc could hold 360 kilobytes of information.
What is a megabyte and how much data can it store?
-A megabyte is a unit of digital storage that consists of 1,000 kilobytes, and it is enough space to hold about five large books or one minute of music.
What was the storage capacity of a 3 and 1/2 inch floppy disc in the 1980s?
-A 3 and 1/2 inch floppy disc could hold 1.4 megabytes of data.
What is a gigabyte and how much data can it store?
-A gigabyte is a unit of digital storage that consists of 1,000 megabytes and can store about 400 books, a thousand pictures, or 16 hours of music.
What is a terabyte and how much data can it store?
-A terabyte is a unit of digital storage that consists of 1,000 gigabytes and can store about 400,000 large books, a million pictures, or two years of continuous music.
How have the costs of storage devices changed over time?
-The cost of storage devices has significantly decreased over time. For example, by the mid-1990s, a 1 gigabyte hard drive could be purchased for a couple hundred dollars, whereas today, a 1 terabyte hard drive can be bought for under $50.
Outlines
💾 Understanding Digital Storage
This paragraph introduces the binary system used by computers, which is based on only two numbers: one and zero. These binary digits, known as 'bits,' are the smallest unit of data. Bits are used to store various types of information, such as text, images, and sounds. To store more complex information, multiple bits are grouped together. The paragraph explains that eight bits form a 'byte,' which is a fundamental unit of storage equivalent to the space required for one letter or symbol in a text document. The concept of a 'kilobyte' is introduced as 1,000 bytes, which was historically significant in the context of storage capacity, such as the 360 kilobytes that a 5 and 1/4 inch floppy disk could hold in the late 1970s and early 1980s.
Mindmap
Keywords
💡Binary System
💡Bit
💡Byte
💡Kilobyte (KB or K)
💡Megabyte (MB)
💡Gigabyte (GB)
💡Terabyte (TB)
💡Floppy Disk
💡Storage Capacity
💡Digital Storage Terminology
💡Data Compression
Highlights
Computers use the binary system, which only has two numbers: one and zero.
Binary digits, which can be either one or zero, are called bits.
Bits are the smallest unit of data in a computer.
Bits are used to store various types of information, including text, colors, and sounds.
A group of eight bits is called a byte.
One byte is the amount of space needed to store one letter or symbol.
1,000 bytes make up a kilobyte, often abbreviated as KB or K.
Technically, there are 1,024 bytes in a kilobyte due to binary powers of two.
A kilobyte can hold about two pages of text.
The 5 and 1/4 inch floppy disc could hold 360 kilobytes of information.
1,000 kilobytes make up a megabyte, often abbreviated as MB.
A megabyte can hold about five large books or one minute of music.
The 3 and 1/2 inch floppy disc held 1.4 megabytes of data in the 1980s.
1,000 megabytes make up a gigabyte, which can hold about 400 books or 16 hours of music.
In the mid-1990s, a 1 gigabyte hard drive cost a couple hundred dollars.
1,000 gigabytes make up a terabyte, which can hold about 400,000 large books or two years of music.
Today, a 1 terabyte hard drive can be bought for under $50.
The progression from bits to bytes, kilobytes, megabytes, gigabytes, and terabytes shows the growth in digital storage capacity.
Transcripts
let's continue learning about how
computers store
data as we learned earlier computers use
the binary system which has only two
numbers one and zero the word that's
used to describe these binary digits
which can be either one or zero is a bit
bit it's short for binary digit and it's
the smallest unit of data in a computer
now these bits these ones and zeros are
used to store all kinds of information
from the text that appears on your
screen to the colors of an image to the
sounds that come out of your speakers to
store information like this we use a
bunch of bits together the number of
bits we have determines how much
information we can store so for our next
term it turns out if you take eight of
these bits eight of these ones and zeros
and put them together that's called a
bite sounds like a mouthful of food but
it's spelled with a Y and it refers to
eight bits put together in everyday
terms you can think of one bite as the
amount of space it takes to store one
single letter or symbol in a text
document so if you wrote a short story
with a th000 words this would require
about a th000 bytes of storage
space that brings us to our next term if
you take 1,000 bytes and put them
together that's called a kilobyte often
abbreviated as KB or just K now I will
mention just once that technically there
are
1,24 bytes in a kilobyte and that's
because computers use binary and
everything comes in powers of two um
that said it doesn't really matter and
it's okay to think of a kilobyte as
simply 1,000 bytes similar to how a
kilometer is 1,000 M or a kilogram is
1,000 G one kilobyte is enough space to
hold about two pages of text back in the
late 1970s and early 1980s the 5 and a/4
inch floppy disc was a popular storage
option it could hold 360 kilobytes of
information so now what's it called if
you have a th000 kilobytes it's called a
megabyte often abbreviated as capital
MB 1 Megabyte is enough space to hold
about five large
books or one
photo or one minute of
Music this was a 3 and 1 half inch
floppy disc back in the 1980s that held
1.4 megabytes of data which was pretty
good at the time because most files were
pretty small all right now you're
probably wondering what's it called if
you have a th000 megabytes a, megabytes
is called a
gigabyte and it's enough space to hold
about 400
books or a thousand
pictures or 16 hours of music by the mid
1990s you could buy a 1 gigabyte hard
drive for a couple hundred
bucks today you can buy a 1 gbyte flash
drive for about
$5 okay so what's it called when you
have a th000
gigabytes 1,000 gigabytes is called a
terabyte and is often abbreviated as
TB it's enough space to hold about
400,000 large books that's 30 School
libraries a million pictures
or two years of continuous music today
you can buy a one tbte hard drive for
under
$50 yes it's pretty
amazing so to recap we talked about bits
how there are eight bits in one
bite how there are a thousand bytes in 1
kilobyte and 1,000 kilobytes in 1
Megabyte and 1,000 megabytes in 1
Gigabyte and 1,000 gab in 1
terabyte I hope you've enjoyed this
video and that you have a better
understanding of digital storage
terminology
تصفح المزيد من مقاطع الفيديو ذات الصلة
✅Cómo convertir bites y bytes, b, B, KB, MB, GB, TB😎 !!MÉTODO COMPLETO Y FÁCIL!! con ejemplos.👌
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