Elements of a computer (processing) system are: 1. Hardware. 2. Software. 3. Human-ware. 4. User Programs. 5. Procedures. Element # 1. Hardware: Hardware refers to the physical units i.e., the electronic devices etc., which make up a computer system. There are three basic hardware components of a general-purpose digital Computer: (1) Input section. (2) Central Processing Unit (CPU). (3) Output [...]
The parts of the computing machine which are involved in the transfer of data to and from the outside world are known as peripheral devices and can be categorized as follows:- 1. Input Devices 2. Output Devices 3. Input/Output Devices. Peripheral Device # 1. Input Devices: Input devices are used to transfer information into the computing machine. The input unit [...]
This article throws light upon the top fourteen input devices used in a computer. Some of the input devices are: 1. Punched Cards Input 2. Paper Tape Input 3. Magnetic Tape 4. Magnetic Disk 5. Disc Systems (Floppy) 6. Winchester Disk 7. Keyboard 8. Terminals 9. Mark and Character Recognition 10. Optical Mark Reading (OMR) 11. Optical Character Recognition (OCR) [...]