Inventions & Breakthroughs of April 1984
Gadgets, lab surprises, odd bets, and future-shocks from this slice of the calendar.
1 
Graphical User Interface Computer (Macintosh)
2 
Inkjet Printer (Consumer)
3 
Medical DNA Fingerprinting
4 
Compact Laptop Computer
5 
Digital Music Synthesizer
6 
Video Cassette Rental System
7 
Speech-to-Text Software
8 
Advanced Prosthetic Limb Control
9 
Optical Fiber Network Expansion
10 
Personal Desktop Publishing
The Sounds of
Popular recordings and roots/country selections associated with the year
HEADLINES ON April 17, 1984
Full News Archive
- Headline: Silicon Valley Engineer Pleads Guilty to Espionage. Impact: Harper's guilty plea triggered a series of events leading to increased security measures in tech companies, which eventually led to the birth of the overly paranoid IT department that still wonders if the office plants are secretly spying for foreign powers.. Fact: Did you know that selling secrets to foreign agents is a great way to ensure you never get invited to a company barbecue again?.
- Headline: AIDS Crisis in Zaire. Impact: The AIDS crisis in Africa prompted global health initiatives that, while noble in intention, sometimes resulted in 'band-aid' solutions that missed the underlying issues, like trying to fix a sinking ship with a sponge.. Fact: Fun fact: The acronym AIDS was almost 'FAD' – 'Fatal Acquired Disease' – but thankfully someone realized that sounded more like a trendy 90s band than a serious health crisis..
Wall Street Time Machine
The Right Call: If you'd invested $1,000 in any one of these companies in 1984, here's what the stored 2025 dataset estimates.
Rank #1
WMT
Walmart
Price in 1984
$0.23
2025 dataset value
$490,961
Walmart - If you invested $1,000 in 1984, it would be worth $490,961 today (491.0x return)
Rank #2
JNJ
Johnson & Johnson
Price in 1984
$0.94
2025 dataset value
$222,603
Johnson & Johnson - If you invested $1,000 in 1984, it would be worth $222,603 today (222.6x return)
Rank #3
MCD
McDonald's
Price in 1984
$1.18
2025 dataset value
$271,190
McDonald's - If you invested $1,000 in 1984, it would be worth $271,190 today (271.2x return)
🦸 Top 5 Comics
Teenage Mutant Ninja Turtles #1
$100,000
Secret Wars #8
$150
The New Teen Titans #1
$200
Saga of the Swamp Thing #25
$60
Marvel Super Heroes Secret Wars #1
$300
🧸 Top 5 Toys
Transformers
$1,200.00
Cabbage Patch Kids
$150.00
Voltron
$200.00
Masters of the Universe: He-Man
$150.00
G.I. Joe: A Real American Hero
$143.75
🎮 Top 5 Video Games
Tetris
$1,000.00
Duck Hunt
$275.00
Marble Madness
$100.00
Boulder Dash
$100.00
Kung-Fu Master
$200.00
⚾ Top 5 Trading Cards
Don Mattingly Rookie Card #8
$3,000
Dan Marino Rookie Card #123
$30,000
John Elway Rookie Card #63
$15,250
Darryl Strawberry Rookie Card #182
$200
Hulk Hogan Rookie Card #1
$41,000