What was the first computer memory?

Freddie Williams applied for a patent on his CRT (cathode-ray tube) storing device on December 11, 1946. The device later became known as the Williams tube or, more appropriately, the Williams-Kilburn tube. The tube stored only stored 128 40-bit words and was the first practical form of random-access memory.

Who invented computer memory?

Robert Heath Dennard
Dennard. Robert Heath Dennard invented one-transistor Dynamic Random Access Memory (DRAM), which allowed major increases in computer memory density and decreases in cost. It became the standard of the industry for RAM and enabled the microcomputer revolution.

What was the first computer virus?

The Brain Boot Sector Virus
The Brain Boot Sector Virus Brain, the first PC virus, began infecting 5.2″ floppy disks in 1986. As Securelist reports, it was the work of two brothers, Basit and Amjad Farooq Alvi, who ran a computer store in Pakistan.

Do you know facts about computer?

The first electronic computer ENIAC weighed more than 27 tons and took up 1800 square feet. TYPEWRITER is the longest word that you can write using the letters only on one row of the keyboard of your computer. Doug Engelbart invented the first computer mouse in around 1964 which was made of wood.

What is computer memory made of?

Memory is made up of bits arranged in a two-dimensional grid. In this figure, red cells represent 1s and white cells represent 0s. In the animation, a column is selected and then rows are charged to write data into the specific column.

How many memories are there in computer?

There are technically two types of computer memory: primary and secondary. The term memory is used as a synonym for primary memory or as an abbreviation for a specific type of primary memory called random access memory (RAM).

Which type of the following malware does not replicate or clone them self’s through infection?

Unlike viruses and worms, Trojans do not replicate or reproduce through infection.