A computer is a machine that can be instructed to carry out sequences of arithmetic or logical operations automatically via computer programming. Modern computers have the ability to follow generalized sets of operations, called programs. These programs enable computers to perform an extremely wide range of tasks. A "complete" computer including the hardware, the operating system (main software), and peripheral equipment required and used for "full" operation can be referred to as a computer system. This term may as well be used for a group of computers that are connected and work together, in particular a computer network or computer cluster.
Computers are used as control systems for a wide variety of industrial and consumer devices. This includes simple special purpose devices like microwave ovens and remote controls, factory devices such as industrial robots and computer-aided design, and also general purpose devices like personal computers and mobile devices such as smartphones. The Internet is run on computers and it connects hundreds of millions of other computers and their users.
Early computers were only conceived as calculating devices. Since ancient times, simple manual devices like the abacus aided people in doing calculations. Early in the Industrial Revolution, some mechanical devices were built to automate long tedious tasks, such as guiding patterns for looms. More sophisticated electrical machines did specialized analog calculations in the early 20th century. The first digital electronic calculating machines were developed during World War II. The first semiconductor transistors in the late 1940s were followed by the silicon-based MOSFET (MOS transistor) and monolithic integrated circuit (IC) chip technologies in the late 1950s, leading to the microprocessor and the microcomputer revolution in the 1970s. The speed, power and versatility of computers have been increasing dramatically ever since then, with MOS transistor counts increasing at a rapid pace (as predicted by Moore's law), leading to the Digital Revolution during the late 20th to early 21st centuries.
Conventionally, a modern computer consists of at least one processing element, typically a central processing unit (CPU) in the form of a metal-oxide-semiconductor (MOS) microprocessor, along with some type of computer memory, typically MOS semiconductor memory chips. The processing element carries out arithmetic and logical operations, and a sequencing and control unit can change the order of operations in response to stored information. Peripheral devices include input devices (keyboards, mice, joystick, etc.), output devices (monitor screens, printers, etc.), and input/output devices that perform both functions (e.g., the 2000s-era touchscreen). Peripheral devices allow information to be retrieved from an external source and they enable the result of operations to be saved and retrieved.
List of Pinterest Computer images & Computer pictures
List of all Pinterest Computer images and pictures. Browse Pinterest Computer ideas
How to Create a Checklist in Excel --- You can use Excel for your checklists. Many apps promise to handle your to-do list, but do you really need yet another app? If you’re already spending your days in Excel, look no further. #Microsoft #Excel #MicrosoftOffice #HowTo #Productivity #ToDo #Checklist
9 Things to Do Before Using a New Computer --- The first thing you want to do with a new computer is jump right into using it. But we don’t recommend doing that. There are some tasks that you must take care of before you start using your new machine. These tasks are easy to do and you won’t have to put too much effort. #NewComputer #Computer #Hardware #Tips #Setup #Windows #Windows10
Chic white wooden desk computer monitor stand.Helps keep your desk looking neat and tidy.Provides an elevated stand for your computer monitor.Helps your neck remain comfortable and reduce eye strain from un-level computer screen.
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7 Things to Do With Old RAM Modules --- Memory modules are usually fitted in pairs, with RAM of the same size, speed and from the same manufacturer sitting alongside each other. This physical necessity means that there can be quite a bit of RAM wastage. So what can you do with your old RAM modules? Can they be reused? Or recycled? Should they be thrown in the bin? Or can you find a new purpose for old PC memory? #RAM #DIY #Hardware #Computing #Reuse #Recycle #Components
F1 To F12: Learn How The Function Keys Can Save You Time
We have all seen function keys before. They are those keys marked F1 to F12 on our computer keyboards. Most of us rarely use these keys when at the computer, but knowing how to use them can be really helpful. Function keys can save you a lot of time if you know how to use …