The ROM in CD-ROM stands for Read Only Memory. In the late 1990s CD-R and later, rewritable CD-RW drives were included instead of standard CD ROM drives. This gave the personal computer user the capability to copy and "burn" standard Audio CDs which were playable in any CD player. As computer hardware grew more powerful and the MP3 format became pervasive, "ripping" CDs into small, compressed files on a computer's hard drive became popular. Napster, Kazaa and Gnutella arose to be used almost exclusively for sharing music files and became a primary computer activity for many individuals. Since the late 1990s, many more personal computers started shipping that included USB (Universal Serial Bus) ports for easy plug and play connectivity to devices such as digital cameras, video cameras, personal digital assistants, printers, scanners, USB flash drives and other peripheral devices. By the early 21st century, all shipping computers for the consumer market included at least two USB ports. Also during the late 1990s DVD players started appearing on high-end, usually more expensive, desktop and laptop computers, and eventually on consumer computers into the first decade of the 21st century.
What are Computer Programming Languages? Computer programming languages allow us to give instructions to a computer in a language the computer understands. Just as many human-based languages exist, there are an array of computer programming languages that programmers can use to communicate with a computer. The portion of the language that a computer can understand is called a “binary.” Translating programming language into binary is known as “compiling.” Each language, from C Language to Python, has its own distinct features, though many times there are commonalities between programming languages. These languages allow computers to quickly and efficiently process large and complex swaths of information. For example, if a person is given a list of randomized numbers ranging from one to ten thousand and is asked to place them in ascending order, chances are that it will take a sizable amount of time and include some errors. There are dozens of programming languages used in the industry today. We've compiled overviews of the 12 most important, relevant and in-demand of these languages below.
The history of computing hardware starting at 1960 is marked by the conversion from vacuum tube to solid-state devices such as transistors and then integrated circuit (IC) chips. Around 1953 to 1959, discrete transistors started being considered sufficiently reliable and economical that they made further vacuum tube computers uncompetitive. Metal-oxide-semiconductor (MOS) large-scale integration (LSI) technology subsequently led to the development of semiconductor memory in the mid-to-late 1960s and then the microprocessor in the early 1970s. This led to primary computer memory moving away from magnetic-core memory devices to solid-state static and dynamic semiconductor memory, which greatly reduced the cost, size, and power consumption of computers. These advances led to the miniaturized personal computer (PC) in the 1970s, starting with home computers and desktop computers, followed by laptops and then mobile computers over the next several decades. For the purposes of this article, the term "second generation" refers to computers using discrete transistors, even when the vendors referred to them as "third-generation".
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