Fiber-optic cables use ____ fibers to guide light pulses along a cable.
B. Glass
C. Ceramic
D. Tungsten
Answer : B.
Digital Electronics
- Which of the following binary digits represent the state of "off"?
- ____ transmissions are capable of transmission rates up to 4 Mbps.
- Twisting copper wires nearly eliminates the electromagnetic effect known as ____.
- ____ media are physical media such as copper wire or fiber-optic cable.
- The tendency of a signal to become weaker over distance is known as ____.
- ____ measures how much information can be carried in a given time period over a wired or wireless communication medium, usually measured in bits per second.
- The PCI system bus consists of ____ wires.
- Factors such as memory type, bus speed, and even hard drive speed can affect overall speed far more than the ____ clock.
- When an I/O device places a voltage signal on a(n) ____ line, the associated chip checks its priority before passing it on to the CPU.
- The sound card fits into the ____ bus expansion slot on the main board.
- Printer ____ ranges from 300 dpi to 2400 dpi for both inkjet and laser printers.
- The process of painting an image on the screen of a monitor is called ____ scanning.
- Keyboards, and most other I/O devices, connect to the main board through a(n) ____.
- A 120-mm disc used to store data, music, and video in a computer system by using laser technology is known as a(n) ____.
- Hard disks are made up of one or more metal platters with a coating consisting of ____ particles.
- RAM is called "____" because it doesn't have to be read sequentially.
- The term "____" refers to the family of components used to store programs and data.
- One of the basics of Von Neumann architecture is the ____ cycle.
- The portion of the CPU responsible for mathematical operations is the ____.
- Most computers today are still based on the ____ architecture.
- Very Large-Scale Integration (VLSI) chips contain ____ of circuits.
- Vacuum tubes were replaced with ____.
- The high-speed cache memory in your computer is made of many thousands of ____ circuits.
- One of the main functions of the ____ of the computer's CPU is to add numbers.