A typical digital computer system has four basic functional elements:
(1) input-output equipment.
(2) main memory.
(3) control unit.
(4) arithmetic-logic unit.
Any of a number of devices is used to enter data and program instructions into a computer and to gain access to the results of the processing operation. Common input devices include keyboards and optical scanners; output devices include printers and cathode-ray tube and liquid-crystal display monitors. The information received by a computer from its input unit is stored in the main memory or, if not for immediate use, in an auxiliary storage device. The control unit selects and calls up instructions from the memory in appropriate sequence and relays the proper commands to the appropriate unit. It also synchronizes the varied operating speeds of the input and output devices to that of the arithmetic-logic unit (ALU) so as to ensure the proper movement of data through the entire computer system. The ALU performs the arithmetic and logic algorithms selected to process the incoming data at extremely high speeds-in many cases in nanoseconds (billionths of a second). The main memory, control unit, and ALU together make up the central processing unit (CPU) of most digital computer systems, while the input-output devices and auxiliary storage units constitute peripheral equipment.
computer hardware
list and explain some important characteristics of a computer?
These are the digital devices solenoid, computer, computer hardware, mobile phone, camera etc.
Calculation is the only function of a computer!
Usually no. "Digital radars" convert the analog signal to digital, and use a digital computer to process it to understand what's happening out there. That's a hybrid system but not a hybrid computer. Some radars in the 1970s did part of the computing by analog methods. That was a hybrid computer.
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The function of a hard drive is to store large amounts of digital information. Another function is to hold the operating system in the computer in order to access computer programs.
The function of a hard drive is to store large amounts of digital information. Another function is to hold the operating system in the computer in order to access computer programs.
The function of a computer scanner is to copy material. This material may be a worksheet or photo for example.
computer hardware
The file is a system which you can save your text..
To help you evaluate a digital image, histogram is what you need. It is a graph which you can find on digital cameras and even in computer software.
The super computer is a massively parallel digital computer.
Of course, The brain of Digital Computer is CPU.
all
what are the characters of digital signal
MOdulate/DEModulate. It converts digital computer signals into analog ones for transmission over analog telephone lines, and then converts the signal back into digital on the other end.