lesson 1

1. LESSON 1

2. AFTER READING OF THIS INFORMATION SHEET,
YOU SHOULD BE ABLE TO:
1. IDENTIFY THE BASIC PRECAUTIONS AND PROCEDURES IN PLANNING, PREPARING,
INSTALLING AND TESTING OF COMPUTER HARDWARE AND SOFTWARE.
2. DETERMINE THE EFFECTS OF COMPUTERS TO THE PEOPLE, HEALTH RISK, AND TO THE
ENVIRONMENT.
3. PREPARE THE REQUIRED DOCUMENTS OR FORMS BEFORE YOU DO A WELL-PLANNED
INSTALLATION
4. IDENTIFY THE QUALIFICATIONS TO BE A CERTIFIED HARDWARE PROFESSIONAL SO
THAT YOU COULD BE ALLOWED AND AUTHORIZED TO DO A WELL-PLANNED
INSTALLATION

3. DEFINITION OF TERMS

4. CPU-Central processing unit; the brain of the computer; controls the other
elements of the computer
Disk Drive-A peripheral device that reads and/or writes information on a
disk
Hard Drive-A device (usually within the computer case) that
reads and writes information, including the operating system, program
files, and data files
Keyboard-A peripheral used to input data by pressing keys
Modem-A peripheral device used to connect one computer to
another over a phone line
Monitor-A device used to display information visually
Mouse-A peripheral device used to point to items on a monitor

5. Printer-A peripheral device that converts output from a computer into a printed image
Browser-A program used to view World Wide Web pages, such as Netscape
Navigator or Internet Explorer
Driver-Software program that controls a piece of hardware or a peripheral
Icon-A small picture used to represent a file or program in a GUI interface
Internet-A network of computer networks encompassing the World Wide Web, FTP,
telnet, and many other protocols
URL-Uniform resource locator; the address of a site on the World Wide Web; a
standard way of locating objects on the Internet
Virus-A deliberately harmful computer program designed to create annoying glitches or
destroy data
Window-A screen in a software program that permits the user to view several programs
at one time

6. OCCUPATIONAL HEALTH AND SAFETY POLICIES
AND PROCEDURES
• DURING INSTALLATION AND INITIAL TEST, CAREFUL PLANNING
AND PREPARATION ARE TO BE DONE. TO AVOID PERSONAL INJURY
AND DAMAGES TO WIRING DUE TO SHARP PINS ON CONNECTORS
AND PRINTED CIRCUIT ASSEMBLIES, ROUGH CHASSIS EDGES AND
CORNERS, AND HOT COMPONENTS.
• ADHERE TO WARNINGS AND LIMITATIONS REGARDING
ACCESSIBILITY INTO AREAS DESIGNATED ONLY FOR AUTHORIZED
TECHNICAL PERSONNEL.

7. SOME BASIC PRECAUTIONS AND
PROCEDURES:
o Before starting the installation, read carefully the documentation and
procedures on any hardware and software settings that may be required.
o Failure to do the proper jumper setting may cause damage to your CPU.
o Without an effective cooling fan, the CPU can overheat and cause
damage to both CPU and the motherboard.
o Each bank must have the same size and type of memory installed in pairs.

8. • Before adding and removing any other system components, make
sure that you unplug your power supply. Failure to do so may cause
damage to your motherboard and in the system component.
o test the computer, ensuring that it meets the necessary system
requirements before booting up.
o if the computer does not pass any of the power on self-test (post), the
computer will receive an irregular power on self-test. an irregular post
is a beep code which is different from the standard beep which can
either be no beeps at all or a combination of different beeps.

9. EFFECTS OF COMPUTERS
Some effects of computers relating to the violation of privacy, the impact
on the labor force, health risks, and the impact on the environment.
1.Violation of Privacy
• Nearly every life event is stored in a computer somewhere--in medical
records, credit reports, tax records, etc.
• It is crucial that personal and confidential records be protected properly.
In many instances, where these records were not properly protected,
individuals have found their privacy violated and identities stolen.

10. Impact on Labor Force
 Although computers have improved productivity in many ways and
created an entire industry with hundreds of thousands of new jobs, the
skills of millions of workers and managers have been replaced by
computers.
 Thus, it is crucial that workers keep their education up-to-date. A
separate impact on the labor force is that some companies are
outsourcing jobs to foreign countries instead of keeping their homeland
labor force employed.

11. 3. Health Risks
 Prolonged or improper computer use can lead to injuries or
disorders of the hands, wrists, elbows, eyes, necks, and back.
 Computer users can protect themselves from these health risks
through proper workplace design, good posture while at the
computer, AND APPROPRIATELY SPACED WORK BREAKS.
 Another health risk, called computer addiction, occurs
when someone becomes obsessed with using the computer.
once recognized, computer addiction is a treatable
disorder.

12. PUBLIC SAFETY
Adults, teen, and children around the world are
using computers to share publicly their photos,
videos, journals, music, and other personal
information.
Some of these unsuspecting, innocent computer
users have fallen victim to crimes committed by
dangerous strangers.
 protect yourself and your dependents from
these criminals by being cautious. for example,

13. IMPACT ON ENVIRONMENT
Computer manufacturing processes and computer waste are
depleting natural resources and polluting the environment.
the amount of resources required to manufacture a personal
computer equals that of a mid-sized car.
When computers are discarded in landfills, they release toxic
materials and potentially dangerous levels of lead, mercury,
and flame retardants.
strategies that can help protect the environment include
recycling, regulating manufacturing processes, extending the
life of computers, and immediately donating replaced
computers

14. REQUIRED DOCUMENTS/FORMS
A. Job order- (sometimes job ticket or work ticket, as it often has some
type of ticket attached) is an order received by an organization from a
customer or client, or an order created internally within the organization. A
work order may be for products or services.
o The quantity of the product to be manufactured, built or fabricated
o The amount of raw material to be used, its price and amount
o The types of labor required, rate (per hour or per unit) and amount
o The machine utilization for each machine during the routing process,
its rate and amount

15. SAMPLE JOB ORDER FORM

16. . REQUEST FORM AND REPORT SHEET
• Computer hardware servicing maintenance, which includes
planned installation, main objective is to keep and improve
production facilities, to keep and improve production facilities stable
and efficient at the lowest life cycle cost with the active participation
of all members in the company.
• A request form is used to put this objective into action. And the
report sheet and request form bring to life this maintenance’s
purposes which are:

17. oTo increase productivity through maximum utilization
and improvement of all equipment
oTo develop maintenance system to reduce life
Cycle cost of machinery and equipment through
The involvement of everybody in the organization
oTo develop the operator’s capability to be
Competent in maintenance activities through
Education, training and motivation.
oTo enhance capability for advanced and sophisticated
technology that would reinforce competitive power.

18. SAMPLE REQUEST FORM
UNIT NO. 5-2
Description: Acer Aspire 4736Z Laptop Computer
Observation/s:
***Corrupted Operating System*** Date Reported:
January 1, 2020
Reported by:
Alexis V. Larosa
Activity: Reformat Laptop
Date Completed: July 27, 2020
Signed:

19. SAMPLE REPORT SHEET
REPAIR REPORT SHEET AREA/SECTION:
ANCHS COMPUTER LABORATORY
Facility Type Nature of Breakdown Recommendation
Laptop No Operating System
Error
Viral Corruption Refer to the Technical
Department for Reformatting of
the Operating System

20. REQUIRED QUALIFICATION FOR A
COMPUTER HARDWARE PERSONNEL
• WHAT QUALIFICATIONS DO YOU NEED TO BECOME A PC
REPAIR TECHNICIAN?

21. EDUCATION
• EMPLOYERS PREFER APPLICANTS WHO HAVE COMPLETED AND PASS THE
NATIONAL CERTIFICATION EXAM II (NC II) FROM ANY DEPED SCHOOL,
VOCATIONAL TRAINING INSTITUTE OR SIMILAR SETTING. SOME EMPLOYERS
REQUIRE AT LEAST A HIGH SCHOOL DIPLOMA.

22. CERTIFICATIONS
• Trainees can take the TESDA NC II computer system servicing
assessment to demonstrate their competency for entry-level jobs to
employers. The technical education and skills development authority or
TESDA offers a variety of certification programs. In addition, technicians
can achieve certifications even for trainer ship.

23. PHYSICAL AND PERSONAL TRAITS
• Pc technicians must be able to squat, bend and reach to access the
computer equipment requiring repair. They should be physically able to lift
computer components. Employers want technicians who think analytically,
are organized and pay attention to detail. They should feel comfortable
working under tight deadlines, and companies may expect them to work
overtime or on weekends.

24. KNOWLEDGE AND SKILLS
• Applicants should know how to use a variety of standard office
software, and some jobs also require knowledge of networking.
Companies prefer candidates with previous PC repair experience
(immersion), and they may look for candidates with experience repairing
specific brands of computers. Technicians need strong oral communication
skills and should be able to explain their findings to customers using
common terms.