This document defines common computer hardware and storage terms like bit, byte, booting, electronic storage, interfaces, laser, magnetic platters, memory modules, magnetic storage media, optical storage media, hard disk drives, integrated drive electronics, and file size and binary. It provides examples of converting between decimal and binary numbers. It also gives practice problems for calculating storage capacity and how many files can be stored.

1. 
TLE_ICTCS7/8MC-0f-2
COMPUTERHARDWARESERVICING|EXPLORATORY
NUEVA ECIJAHIGH SCHOOL
INFORMATION & COMMUNICATIONSTECHNOLOGY
TECHNOLOGY &LIVELIHOOD EDUCATION

3. Bit - a fundamental unit of information having
just two possible values, as either of the
binary digits 0 or 1.
Byte - a unit of digital information in
computing and telecommunications that most
commonly consists of eight bits.
Booting – starting (a computer) by loading an
operating system from a disk.
Electronic storage - a device for recording
(storing) information (data).

4. Firewire - Apple Computer's version of a
standard, IEEE 1394, High Performance
SerialBus, for connecting devices to your
personal computer.
Hot-swappable - the
connection/disconnection of peripherals or
other components without interrupting system
operation.
Interface - interaction or communication
between a computer and any other entity,
such as a printer or human operator.

5. Laser - a device that emits light
(electromagnetic radiation) through a process
of optical amplification based on the
stimulated emission of photons.
Magnetic platter - a thin, high precision disk
that is coated on both sides with a high
precision magnetic material and which is used
in a hard disk drive (HDD) to store data.
Memory module - a narrow printed circuit
board that holds memory chips.

6.  Magnetic storage media - any storage medium
in which different patterns of magnetization are
used to represent stored bits or bytes of
information.
 Operating system - a set of programs that
manage computer hardware resources and
provide common services for application
software.
 Optical storage media - any storage in which
data is written and read with a laser for archival

7. HDD – hard disk drive
IDE - Integrated Drive Electronics

8. CAPACITY=number of
bytes a storage medium
can hold.

9.  FILE SIZE  BINARY

10. DIRECTION:CONVERT THE DECIMAL
NUMBERS TO BINARY.
1. 9 =
2. 28 =
3. 86 =

11. DIRECTION:CONVERT THE BINARY TO
DECIMAL NUMBERS
1. 01100011
2. 11111111
3. 01010101

12. SOLVE THE PROBLEM INDICATED BELOW.
SHOW A SOLUTION
1. How many 80KB jpg files can be stored on a
2MB folder in your hard drive?
2. How many 7MB mp3 files can be stored on a
1GB flash drive?
3. How many 750MB avi files can be stored on a
4.3GB DVDV-R?