Which unit of electricity measures is used to measure the power consumption of a device?
Electricity consumption is measured in kilowatt-hour (kWh). A single kWh is defined as the energy consumed by an electrical device of power 1000 W…
What component is most likely to be installed in a PC is considered primary storage and typically stores the operating system as well as its applications?
30 Cards in this Set
| A tower case conserves space since it can double as a monitor stand. t or f | false |
|---|---|
| What is most likely to be installed in a PC, is considered primary storage, and has Windows 7 installed on it? | hard disk drive |
What two different types of firmware may be used on motherboards?
There are two different types of BIOS:
- UEFI (Unified Extensible Firmware Interface) BIOS – Any modern PC has a UEFI BIOS. …
- Legacy BIOS (Basic Input/Output System) – Older motherboards have legacy BIOS firmware for turning on the PC.
Aug 23, 2018
What determines the physical size of a power supply and the placement of screw holes?
IT 121 CH1 & CH2a
| Question | Answer |
|---|---|
| What determines the physical size of a power supply and the placement of screw holes? | form factor |
| Which of the following is true about fans in the computer system? | large fans tend to run quieter |
How do we measure electricity?
How is electrical current measured? DC power measurement is relatively simple as the equation is simply watts = volts x amps. For AC electrical power measurement, the power factor (PF) introduces complexity as watts = volts x amps x PF.
How do you measure electricity in a circuit?
An ammeter is the quickest way to facilitate power consumption measurement, but it is quite limited. Measuring the power consumption of a circuit is quite straightforward. It all boils down to the equation of P = IV.
Where do today’s computers store almost all motherboard configuration data group of answer choices?
30 Cards in this Set
| When you build a computer from parts, you usually start by deciding on which processor and motherboard you will use. t or f | true |
|---|---|
| What type of bus does PCI Express use? | serial |
| Where do today's computers store almost all motherboard configuration data? | CMOS RAM |
What is the basic principle that applies to both internal and external devices?
What is a basic principle that applies to both internal and external devices? –Every device is controlled by software.
What is BIOS function where it’s installed what are its function and types of BIOS?
BIOS (basic input/output system) is the program a computer's microprocessor uses to start the computer system after it is powered on. It also manages data flow between the computer's operating system (OS) and attached devices, such as the hard disk, video adapter, keyboard, mouse and printer.
Why is BIOS called firmware?
Firmware is a generic name for all the software that is embedded on non-volatile memory. BIOS is stored in ROM, so it is firmware.
What is the connector called on a network cable that connects to an Ethernet port quizlet?
An Ethernet port has a connector called an RJ-45 to connect to a network cable.
What is the connector called on a network cable that connects to an Ethernet port?
RJ45 connectors are commonly seen with Ethernet network cables. Ethernet cables with RJ45 connectors are also called RJ45 cables. These RJ45 cables feature a small plastic plug on each end, and the plugs are inserted into RJ45 jacks of Ethernet devices.
Why do we measure electricity?
Measuring electricity is vital when it comes to ensuring our appliances are working properly. This is where kilowatt-hours come in handy. They're a convenient way to determine how much energy we're consuming over time, and we use them in a wide variety of circumstances.
How do you measure current consumption of a device?
What you ought to do is measure the current flowing into the circuit with the aid of an ammeter. By using an ammeter, you're able to calculate the power consumption of that particular instance.
What is the function of wattmeter?
The wattmeter is an instrument for measuring the electric active power (or the average of the rate of flow of electrical energy) in watts of any given circuit. Electromagnetic wattmeters are used for measurement of utility frequency and audio frequency power; other types are required for radio frequency measurements.
Where do today’s computers store almost all motherboard configuration data group of answer choices BIOS UEFI ROM CMOS RAM DIMM RAM HDD?
30 Cards in this Set
| When you build a computer from parts, you usually start by deciding on which processor and motherboard you will use. t or f | true |
|---|---|
| What type of bus does PCI Express use? | serial |
| Where do today's computers store almost all motherboard configuration data? | CMOS RAM |
Which of the following device is dedicated to timing the activities on the motherboard?
The system clock or system timer,is dedicated to timing the activities on the motherboard much like a metronome helps a musician with timing.
What type of network device keeps a table of the MAC addresses of the devices connected to it?
35 Cards in this Set
| A WLAN covers a large geographical area and is made up of many smaller networks. | False |
|---|---|
| Which type of network device keeps a table of the MAC addresses of the devices connected to it? | switch |
What is a USB used for?
The term USB stands for "Universal Serial Bus". USB cable assemblies are some of the most popular cable types available, used mostly to connect computers to peripheral devices such as cameras, camcorders, printers, scanners, and more.
What is CMOS and its function?
CMOS stands for “Complementary Metal Oxide Semiconductor.” The CMOS battery powers the BIOS firmware in your laptop (2). BIOS needs to remain operational even when your computer isn't plugged into a power source. That's where the battery comes in.
What does CMOS stand for?
complementary metal oxide semiconductor The working principle of a CMOS (complementary metal oxide semiconductor) image sensor was conceived in the latter half of the 1960s, but the device was not commercialized until microfabrication technologies became advanced enough in the 1990s.
How do you update BIOS Windows 10?
Copy the file to the bootable USB flash drive. Now insert the USB stick into the system on which you need to update the BIOS. After the reboot, press F12, ensure that the USB with BIOS is plugged in. Follow the onscreen instructions and complete the update process.
How do I update my BIOS Windows 7?
- Step 1: Press power button to boot, then press F2 key enter BIOS setup.
- Step 2: Select sub menu to Configuration.
- Step 3: Select to Hotkey Mode item and then press enter.
- Step 4: Select Enabled then press enter.
- Step 5: Press F10 save and exit, then select Yes then press enter.
What is the connector called on a network cable that connects to an Ethernet port a db9 B USB C RJ 11 d RJ45?
Registered Jack Ethernet is a networking technology that is used to connect your computer to Internet and communicate with other computers or networking devices. The interface that is used for computer networking and telecommunications is known as Registered Jack (RJ) and RJ – 45 port in particular is used for Ethernet over cable.
How do I connect my HDMI cable to my TV wirelessly?
Let's see how to connect Non-Smart TV to Wi-Fi via HDMI cable:
- Turn off your laptop and TV.
- Connect your laptop/PC to the Non-Smart TV using an HDMI cable.
- Choose something to watch on your laptop/PC.
- Make sure your laptop/PC has a video out and your TV, an HDMI port.
- Select the input option on your Non-Smart TV.
On which pin is an Ethernet network card sending and on which pin does it receive data?
Pins 4 and 5 must be a pair. Pins 7 and 8 must be a pair. To allow for a straight-through cable, the switch provides an internal transmit/receive crossover function. The transmit circuit of the network card is connected to the receive circuit of the switch and vice versa….Ethernet Cabling Specifications.
| Pin# | Signal |
|---|---|
| 8 | BI_D4– |
How do you measure electricity?
Electricity is measured in Watts and kilowatts Electricity is measured in units of power called Watts, named to honor James Watt, the inventor of the steam engine. A Watt is the unit of electrical power equal to one ampere under the pressure of one volt. One Watt is a small amount of power.
What is function of voltmeter?
A voltmeter, also known as a voltage meter, is an instrument used for measuring the potential difference, or voltage, between two points in an electrical or electronic circuit. Some voltmeters are intended for use in direct current (DC) circuits; others are designed for alternating current (AC) circuits.
What are types of wattmeter and voltmeter?
Electrodynamometer Instruments – Ammeter, Voltmeter and Wattmeter
- Electrodynamometer or Electrodynamic instrument.
- Electrodynamometer ammeter.
- Electrodynamometer voltmeter.
- Electrodynamometer wattmeter.
- Basic Arrangement of an Electrodynamometer Wattmeter.
What is motherboard List and explain various components attached on a motherboard?
A motherboard is also known as the system board or the main board. The motherboard accommodates the central processing unit (CPU), random access memory (RAM), expansion slots, heat sink and fan assembly, basic input/output system (BIOS) chip, chipset, and the circuitry that interconnects the motherboard components.