LESSON 22: CONTROLLING SYSTEM REMOTELY Q. N.1 Observe the picture below and answers the questions:
window drapes
lighting presets
Projectors
Projection screens
Internet Access
DVDs and VCRS
Central Control System
Electronic voting
Microphones
Computers
Speakers
Cameras​

The concept of comes from the acknowledgment that data changes form and often gets copied, moved, and stored in many places. sensitive data often leaves the protection of application databases and ends up in e-mails, spreadsheets, and personal workstation files.

Acomputer is a multipurpose device that accepts input, processes data, stores data, and produces output, all according to a series of stored . the processing unit of most modern computers is a(n) . the instructions that tell a computer how to carry out a task are referred to as computer , which are distributed as software. computers run three main types of software: software, system software, and development tools. an example of system software is a computer system, which is essentially the master controller for all the activities that a digital device performs. digital devices are constructed using tiny electronic components that represent data bits as electrical signals. the system unit houses the system board, which contains several circuits made from semiconducting materials. computers come in three popular form factors: component, , and slate. many of today's digital devices operate on battery power supplied by ion batteries. battery life and lifespan can be extended by following good battery management practices.

Two technicians are discussing the common u-joint. technician a says its input and output speeds should be equal. technician b says that it normally has two yokes. which technician is correct?