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Computer hardware. PDP-11 CPU board. Computer hardware comprises the physical parts of a computer, such as the central processing unit (CPU), random access memory (RAM), motherboard, computer data storage, graphics card, sound card, and computer case. It includes external devices such as a monitor, mouse, keyboard, and speakers.
qudit ( d -dimensional) v. t. e. The bit is the most basic unit of information in computing and digital communications. The name is a portmanteau of binary digit. [1] The bit represents a logical state with one of two possible values. These values are most commonly represented as either "1" or "0", but other representations such as true / false ...
In digital computing and telecommunications, a unit of information is the capacity of some standard data storage system or communication channel, used to measure the capacities of other systems and channels. In information theory, units of information are also used to measure information contained in messages and the entropy of random variables.
A central processing unit ( CPU ), also called a central processor, main processor, or just processor, is the most important processor in a given computer. [1] [2] Its electronic circuitry executes instructions of a computer program, such as arithmetic, logic, controlling, and input/output (I/O) operations. [3] [4] [5] This role contrasts with ...
Processor (computing) In computing and computer science, a processor or processing unit is an electrical component ( digital circuit) that performs operations on an external data source, usually memory or some other data stream. [1] It typically takes the form of a microprocessor, which can be implemented on a single or a few tightly integrated ...
A single-board computer ( SBC) is a complete computer built on a single circuit board, with microprocessor (s), memory, input/output (I/O) and other features required of a functional computer. Single-board computers are commonly made as demonstration or development systems, for educational systems, or for use as embedded computer controllers.
The byte is a unit of digital information that most commonly consists of eight bits. Historically, the byte was the number of bits used to encode a single character of text in a computer [1] [2] and for this reason it is the smallest addressable unit of memory in many computer architectures .
IBM 2741, a widely emulated computer terminal in the 1960s and 1970s. (keyboard/printer) A computer terminal is an electronic or electromechanical hardware device that can be used for entering data into, and transcribing [1] data from, a computer or a computing system. [2] Most early computers only had a front panel to input or display bits and ...