Technology MCQs

✅ The correct answer is option D.
It is a method of controlling the speed of an AC induction motor, whereby speed, current and torque can all be accurately controlled.

✅ The correct answer is option C.
Theodore Maiman built the first working laser using a ruby rod while working at Hughes Research Laboratories in Malibu, California. It lased for the first time on May 16, 1960.

✅ The correct answer is option C.
1983 Fred Cohen, while working on his dissertation, formally defines a computer virus as ‘a computer program that can affect other computer programs by modifying them in such a way as to include a (possibly evolved)copy of itself.’

✅ The correct answer is option B.

✅ The correct answer is option B.

✅ The correct answer is option C.

✅ The correct answer is option A.
On September 12, 1958, Jack Kilby demonstrated the first working IC while working for Texas Instruments, although the U.S. patent office awarded the first patent for an integrated circuit to Robert Noyce of Fairchild.

✅ The correct answer is option B.
A chip found in almost every microprocessor.

✅ The correct answer is option D.
The 386 chip was the first to offer a possible 32- or 64-bit access to data. OS-2 2.x or higher and Windows 95 required at least a 386 CPU while Windows NT 4.x required at least a 486 CPU to run.

✅ The correct answer is option D.