



Study with the several resources on Docsity
Earn points by helping other students or get them with a premium plan
Prepare for your exams
Study with the several resources on Docsity
Earn points to download
Earn points by helping other students or get them with a premium plan
Community
Ask the community for help and clear up your study doubts
Discover the best universities in your country according to Docsity users
Free resources
Download our free guides on studying techniques, anxiety management strategies, and thesis advice from Docsity tutors
An overview of the input devices, connectors, and the binary numbering system in computing. It explains the concept of the information processing cycle and how hardware is classified based on it. Keyboards, mice, ports, and the binary numbering system in detail. It also discusses the communication between software and hardware and the requirements of hardware.
Typology: Study notes
1 / 6
This page cannot be seen from the preview
Don't miss anything!
Input Hardware and Connector Types August 23 (Day); August 22 (Night) Information Processing Cycle:
known as the information processing cycle. These four steps include input, processing, output, and storage. o The computer’s information processing cycle is almost identical to the way we, as human beings, process information. For example, you ask a friend to add the numbers two plus two and write the answer on a piece of paper.
o Hardware can be classified on the basis of which step it performs on the information processing cycle:
hardware. Most input (keyboard, mouse) and output (monitor, printer) devices are outside the computer. Most processing (CPU) and storage (memory, floppy disk drive, hard disk drive) devices are found outside the computer case.
Binary Numbering System: o When you sit at the computer, you communicate with it by providing words and numbers as input. This input cannot be understood directly by the computer’s hardware.
This format is known as binary.
known as a byte. Three Requirements of Hardware: o A way for the device to communicate with the CPU. o Software to instruct and control the device. o Electricity to power the device.
devices inside the computer case through cables attached to the case at a connection called a port (p. 12). Most ports are located on the back of the computer case.
o Mouse: A mouse is a pointing device used to move a pointer on the screen on an X and Y axis (p. 326). Like the keyboard, a standard mouse uses a round 6-pin connector known as the PS/2 connector (p. 14). PS/2 Connector Pinout Mouse Port
customized drivers to take advantage of special features (p. 329). More recently, like keyboards, mice have begun to be made for the USB port and wireless (p. 328). Other mice:
movement by taking images of the surface that the mouse moves over (p. 327). o Game Controllers: Game controllers come in three main types: joysticks, steering/racing wheels, and game pads (p. 330).
15-pin Serial Port Pinout 15-pin Serial Port
Most operating systems have drivers built-in for the serial ports. Most game controllers use more advanced drivers (p. 331). Recently, many game controllers have moved to USB (p. 331).
DB connectors have a slight D-shape. DB connectors consist of either small pins (a.k.a. male) or sockets (a.k.a. female).
port is a 15-pin male DB connector. It would be identified as DB15M. o DIN Connector: DIN connectors are round. The mini-DIN is used for PS/2 connectors such as mouse and keyboard. o RJ Connector: An example of a RJ connector would be your telephone jack. An RJ-11 jack is a phone jack and used for modems. An RJ-45 jack is wider and used for network cabling. RJ-45, RJ-11 Connector o Audio Connector: Speakers and microphones plug into what are known as mini-audio connectors.