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They haven't been replaced! Only now they are much smaller and switched on and off by nano-bots that receive instructions from user input.
Wiki User
∙ 12y ago
Wiki User
∙ 6y agoTransistors have replaced valves in modern computers.
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How has the computer been improved with technology?
Size ! The earliest computers used to literally fill a room with valves ans switches - the same computing power used in the first room-sized computers can now be found in a digital watch !
What is the impact of computers in modern technology?
Humans find computers very helpful in their lives. They are able to work from home, order medicines from their home, find directions to a new destination, and chat with friends just to name a few things.
What is the history of the computer in the 20th century?
Alan Turing's work in the 1940s led to the development of modern computers. Computers small enough to be used in homes have been available since the early 1980s.
What are the uses of vacuum tubes in today's computers?
Since the second generation transistorized computers there has been no use of vacuum tubes in computers except for one thing, CRT displays. In the last few years even that has been eliminated by modern flat panel LCD & LED displays, which are much lighter and less power hungry than CRT displays were.
Relying On The Best Rated Computers?
Most modern individuals have good reasons for investing in modern computers. Businesspeople have been using computers to create revenues for decades. Even working class people are now using computers to improve their personal and financial lives. When reviewing the home PC marketplace, consumers should only purchase the best rated computers. A number of excellent consumer groups currently review current computer models for the benefit of the buying public. Consumers should rely on review sites in order to inform their decision.
How do you correct a mispelt word when using a typewriter?
Replace the ink to white ink, and you type over the letters that have been typed. This may come as a surprise to you, but now we have something called... COMPUTERS!
Do personal computers have hard drives?
Yes. Most modern personal computers have hard drives. Its been decades since pc's didnt have Harddrives in them. In the beginning and nowadays with a few netbooks, harddrives were optional. There are computer products with no hd's and have solidstate instead acting as hd.
What is use of Computer application in defense?
Computers have been applied in several ways in defense ever since their invention in the 1970s. One of the main ways is the design and testing of modern weapons.
What was the computer used for before the internet?
The same as modern computers! Word processing, spreadsheets, games, photo storage, desktop publishing, graphic drawing etc - in fact anything that modern computers are used for except things specific to the internet (like email, webcams, surfing websites etc)
When did Apple replace the iBook with the MacBook?
The MacBook refers to a brand of laptop computers manufactured by the computer company Apple. This brand replaced the iBook on May 16, 2006. It has since been discontinued.
What Year Were Computers Made In?
Appl has been making computers since 1976 and Apple Inc. still makes them.Appl has been making computers since 1976 and Apple Inc. still makes them.
Why is the telegraph important to the development of computers?
Because it used a form of communication that many computers use and that has been advanced as computers developed.
