Category Archives: Notes

Notes for A+ Exams

STEPPER MOTOR

View RSS feed ======================= WHAT IS A STEPPER MOTOR ======================= A stepper motor, also known as step motor or stepping motor, is a brushless DC electric motor that divides a full rotation into a number of equal steps. The motor’s … Continue reading

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DIALUP

Dial-up Internet access is a form of Internet access that uses the facilities of the public switched telephone network (PSTN) to establish a dialed connection to an Internet service provider (ISP) via telephone lines. The user’s computer or router uses … Continue reading

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DISPLAY

DISPLAY A monitor or display (sometimes called a visual display unit) is an electronic visual display for computers. The monitor comprises the display device, circuitry, and an enclosure. The display device in modern monitors is typically a thin film transistor … Continue reading

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TCP/IP 5 LAYER MODEL NOTES VI

The transport layer — delivery driver knows how to knock on your door to tell you your package has arrived. — MEET AND GREET, ETIQUETTE, HANDSHAKES Transport Layer uses tcp segments. Tcp Segments encapsulates ip datagram which encapsulates which encapsulates … Continue reading

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MANAGED SWITCH

MANAGED SWITCH Managed switches have one or more methods to modify the operation of the switch. Common management methods include: a command-line interface (CLI) accessed via serial console, telnet or Secure Shell, an embedded Simple Network Management Protocol (SNMP) agent … Continue reading

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DOT MATRIX PRINTERS

Oki Data Dot Matrix Printers By Vrinda Bhardwaj A Dot Matrix Printer is an impact printer that uses a matrix of small pins to create absolute pixels or dots that together form a larger image on the paper. The printer … Continue reading

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