Test your knowledge with these top questions!
Which 80-column card was the standard input medium for IBM mainframes through the 1970s?
The 80-column IBM punch card from 1928 stayed the dominant mainframe input into the late 1970s.
Which IBM mainframe family introduced in 1964 became the standard for universities?
IBM announced the System/360 family on April 7 1964 for business and university computing.
Which onboard computer built by MIT guided Apollo 11 to the Moon in July 1969?
The MIT-built Apollo Guidance Computer guided Apollo 11 with tiny erasable and fixed memory.
Which early computer correctly predicted the 1952 presidential election on CBS television?
UNIVAC I predicted an Eisenhower landslide on CBS in 1952 and made computers famous overnight.
Which hardware controller did Douglas Engelbart debut in his legendary 1968 "Mother of All Demos"?
Engelbart's wooden mouse prototype introduced point-and-click interaction alongside hypertext, video conferencing, and windowed screens.
Which floppy disk format became the ubiquitous standard for 1980s and 1990s desktop PCs?
Sony created the rigid-shell 3.5-inch disk in 1981, which quickly replaced flexible 5.25-inch disks as the dominant portable storage media.
Which operating system created at Bell Labs in 1969 became the foundation for modern Linux and macOS?
Ken Thompson and Dennis Ritchie developed Unix, introducing portable modular design principles that still power modern operating systems.
Which 1971 microprocessor was the first commercially available single-chip CPU?
Designed originally for a Japanese desktop calculator, the 4-bit Intel 4004 ignited the microcomputer revolution.
ARPANET researchers sent the first network message in 1969; which letters arrived before the system crashed?
Researchers intended to send "LOGIN", but the connection dropped after transmitting the first two letters.
Eight scientists left Shockley Semiconductor in 1957 to form which pioneering chip firm?
The group known as the "Traitorous Eight" launched Fairchild, seeding dozens of Silicon Valley tech spinoffs.