Assessing Quality of Received MaterialsCSS 9 Q1-W1.pptx

Assessing Quality of Received Materials

1. Computer system servicing ASSESSING QUALITY OF RECEIVED MATERIALS

2. Objectives: 1. Identify the different materials and components 2. Give the uses/functions of materials and components 3. Record the materials and components

3. specification -often refers to a set of documented requirements to be satisfied by a material, design, product, or service .

4. Unlocking of Difficulties Monitor - an electronic device with a screen used for display (as of television pictures or computer information) Bandwidth - a range of radio frequencies which is occupied by a modulated carrier wave, which is assigned to a service, or over which a device can operate.

5. Unlocking of Difficulties Motherboard - the main circuit board especially of a micro computer. Semiconductor - any of a class of solids (such as germanium or silicon) whose electrical conductivity is between that of a conductor and that of an insulator in being nearly as great as that of a metal at high temperatures and nearly absent at low temperatures.

6. VGA (VIDEO GRAPHICS ARRAY) Created way back in the 1980’s, the VGA connection cable was the standard cable used to connect a computer to a monitor. More recently, it has faded out of popularity due to the gradual shift towards digital connections over analog. Still, if you look on any video card or display apparatus, there is a good chance you’ll see a VGA port.

7. DVI (DIGITAL VIDEO INTERFACE) The DVI connection became the successor to VGA as technology moved away from analog towards digital. Digital displays, like LCD, proved to be higher quality, which soon became the market standard for home pictures.

8. IDE (INTEGRATED DRIVE ELECTRONICS) IDE cables were used to connect storage devices to a motherboard. If you’ve ever opened up a an old hard drive then you likely know what an IDE connector looks like. It’s the widecable that looks like a ribbon with more than 2 plugs.

9. HDMI (HIGH DEFINITION MULTIMEDIA INTERFACE) In the past decade, high-definition broadcasts became the new standard of what it means to be high quality. Unlike VGA and DVI, HDMI sends both video and audio signals together. The signals are digital only; thus, HDMI is only compatible with newer devices.

10. USB (UNIVERSAL SERIAL BUS) The USB connection is quite possibly the most pervasive connection type intoday’s world. Nearly every form of computer peripheral device keyboards, mice, headsets, flash drives, wireless adapters, etc. — can be connected to your computer through a USB port.

11. SATA (SERIAL ADVANCED TECHNOLOGY ATTACHMENT) Newer hard drives will likely use SATA ports over IDE ports. In fact, SATA was designed to succeed IDE, and it has. Compared to IDE, SATA provides higher data transfer speeds. Your motherboard needs to be compatible with SATA.

12. FIREWIRE The purpose of FireWire is similar to that of USB: high speed data transfer for computer peripherals. High bandwidth devices, like printers and scanners, will benefit from FireWire. For whatever reason, FireWire is not as widespread as USB. FireWire cables come in two forms: 1394a (which has a transfer speed of 400 Mbps) and 1394b (which has a transfer speed of 800 Mbps).

13. ETHERNET Ethernet cables are used to set up local area networks. In most cases, they’re used to connect routers to modems and computers.

14. RESISTOR A resistor is a passive two-terminal electrical component that implements electrical resistance as a circuit element. In electronic circuits, resistors are used to reduce current flow, adjust signal levels, to divide voltages, bias active elements, and terminate transmission lines, among other uses.

15. CAPACITOR Its function is to store the electrical energy and give this energy again to the circuit when necessary. In other words, it charges and discharges the electric charge stored in it. Besides this, the functions of a capacitor are as follows: It blocks the flow of DC and permits the flow of AC.

16. INTEGRATED CIRCUIT (IC) An integrated circuit (IC), sometimes called a chip or microchip, is a semiconductor wafer on which thousands or millions of tiny resistors, capacitors, and transistors are fabricated. An IC can function as an amplifier, oscillator, timer, counter, computer memory, or microprocessor.

17. DIODE The most common function of a diode is to allow an electric current to pass in one direction (called the diode's forward direction), while blocking current in the opposite direction (the reverse direction). Thus, the diode can be viewed as an electronic version of a check valve.

18. TRANSISTOR A transistor is a semiconductor with a solid and non-moving part to pass a charge. It can amplify and switch electrical power and electronic signals. Transistors are made of semiconductor material with three or more terminals used to connect to an external circuit.

19. Activity 1

20. QUIZ 1 1. What do you call a cable that is used to connect storage devices to a motherboard? A. IDE cable C. UTP cable B. HDMI cable D. Firewire

21. QUIZ 1 2. What kind semi-conductor with a solid and non-moving part to pass a charge and can amplify and switch electrical power and electronics signals? A. Capacitor C. Transistor B. Resist D. Diode

22. QUIZ 1 3. Which of the following components that is used to allow an electric current to pass in one direction? A. Diode C. Resistor B. capacitor D. Transistor

23. QUIZ 1 4. What is the cable used to set up local networks? A. Ethernet cables C. HDMI B. Firewire D. SATA

24. QUIZ 1 5. What does USB stands for? A. Universal Serial Bus B. Universal Service Bus C. Universal System Bus D. Universal System Board

25. QUIZ 1 6. Which of the following is NOT an example of electronic components? A. Resistor C. SATA B. Diode D. Transistor

26. QUIZ 1 7. Which of the following you are going to use if you wish to transfer files to your computer? A. USB cable C. memory and CPU B. PC and Mac D. IDE cable

27. QUIZ 1 8. What component used to store electrical energy and give this energy again to the circuit when necessary? A. Diode C. Resistor B. Capacitor D. Transistor

28. QUIZ 1 9. What terms refers to a cable that is used to transmit analog signals, allowing it to be backwards compatible with VGA? A. SATA cable C. DVI cable B. IDE D. Memory

29. QUIZ 1 10. Which of the following is NOT a cable? A. VGA C. SATA B. DVI D. Transistor

30. Answer key 1. A 6. C 2. C 7. A 3. D 8. B 4. A 9. C 5. A 10. D