CPU (Central Processing Unit)

CPU (Central Processing Unit)

cpu

What is a CPU (Central Processing Unit)?

The central processing unit (CPU) is the unit which does most of the processing inside a computer of smartphone. A central processor, or CPU, is the most vital or important  part or component of any computing device. It controls instructions and data flow to and from other parts of the computer.

The CPU has two components:

  • Control Unit: extracts instructions from memory and decodes and executes them
  • Arithmetic Logic Unit (ALU): handles arithmetic and logical operations

 

Cores

Contemporary processors are made up of multiple cores which allow it to perform multiple instructions at once. And there are several CPUs on a single chip. Almost all CPUs sold today are at least dual core, but at the higher end, you’ll get quad core CPUs, hexa, octa and deca core CPUs in some cases. Some CPUs also use a technology like multi-threading, which creates virtual or temporal processor cores. The performance of the CPU that’s at the core of the chipset is vital for the daily user experience and the general computing performance of the smartphone.

Clocks

The clock rate is one of the main characteristics of the CPU when performance is concerned. It tells how many instructions or command a CPU can process per second, but that’s not the whole picture when it comes to performance. Clock speed mostly comes into play when comparing CPUs from the same product family or generation. Clock rate is the fundamental rate in cycles per second (measured in hertz, kilohertz, megahertz or gigahertz) for the frequency of the clock in any synchronous circuit.

 

A

A-GPS (Assisted GPS)  •  A2DP (Advanced Audio Distribution Profile)  •  AAC (Advanced Audio Coding) Accelerometer  •  Airplane Mode  •  Alarm Clock  •  AMOLED (Active-matrix organic light-emitting diode)  •  Analog Technology  •  Android Operating System  •  ANT+  •  Antenna  •  Aperture  •  APN (Access Point Name)  •  Apple iOS  •  Apple Pay  •  aptX  •  Autofocus  •  AVRCP (Audio/Video Remote Control Profile)

 

B

Band  •  Bandwidth  •  Base Station  •  Bench marking  •  Biometrics  •  Bit  •  Blackberry OS  •  Bluetooth  •  BPS (Bits Per Seconds)  •  Broadband  •  Byte

 

C

Calculator  •  Calendar  •  Camera  •  Call Alert  •  Capacitive Touchscreen  •  CDMA (Code-Division Multiple Access)  •  Cellular Network  •  Chipset  •  cHTML (Compact HyperText Markup Language)  •  Color  •  CPU (Central Processing Unit)

 

D

Dimension  •  Dynamic Memory  •  D-Pad (Direction Pad)  •  Digital Zooming  •  DLNA (Digital Living Network Alliance)  •  Downlink  •  Dual-Band  •  Dual Mode  •  Dual SIM

 

E

Earphone Jack  •  EDGE (Enhanced Data for Global Evolution)  •  EDR (Enhanced Data Rate)  •  EGPRS (Enhanced General Packet Radio Services)  •  EGSM (Extended GSM)  •  Emoji  •  EMS (Enhanced Message Service)  •  eSIM  •  EV-DO  •  External Display

 

F

Firefox OS  •  Firmware  •  Flash Memory  •  Flight Mode  •  FM Radio  •  FM Transmitter  •  FPS (Frames Per Seconds)  •  Frequency  •  Front Camera  •  FTP (File Transfer Protocol)

 

G

Galileo (Global Navigation Satellite System)  •  GB (Gigabyte)  •  GBPS (Gigabits Per Second)  •  Geo-tagging  •  GLONASS (Global Navigation Satellite System)  •  GPRS (General Packet Radio Service)  • GPS (Global Positioning System)  •  GPU (Graphics Processing Unit)

 

H

H.263  •  H.264  •  H.265  •  Hot Spot  •  HSDPA (High-Speed Downlink Packet Access)  •  HSUPA (High-Speed Uplink Packet Access)  •  HTML (Hypertext Markup Language)  •  Hz (Hertz)

 

I

ISP (Image Signal Processor)  •  IMEI (International Mobile Equipment Identity)  •  IP Rating

 

J

Java

 

K

KB (Kilobyte)  •  Kbps (Kilobits per second)  •  Key Guard  •  Key Lock Switch

 

L

Land Line  •  LCD (Liquid Crystal Display)  •  LED (Light-Emitting Diode)  •  Li-Ion (Lithium Ion)  •  Li-Polymer (Lithium Polymer)  •  Linux OS  •  Lock Code  •  LTE (Long Term Evolution)  •  Loudspeaker

 

M

Maemo OS  •  mAh  •  Mass Storage  •  Material  •  MB (Megabyte)  •  Mbps (Megabit per second)  •  MeeGo OS  •  Megapixel  •  Megahertz  •  Memory Card Slot  •  microUSB  •  MMS (Multimedia Messaging Service) •  Mobile Games  •  MHL (Mobile High-Definition Link)  •  MIM (Mobile Instant Messaging)  •  Mobile Application  •  Mobile Browser  •  Mobile messaging  •  Modem  •  MP3 (MPEG Layer 3)  •  MPEG (Motion Picture Experts Group)  •  MPEG-4 video  •  Multitouch  •  Music playback time (battery life)  •  Music Player

 

N

NAND Memory  •  Network Capacity  •  Network Generations  •  NFC (Near Field Connection)  •  NiCd (Nickel Cadmium)  •  NOR Memory  •  Numeric Keypad

 

O

OLED (Organic Light-Emitting Diode)  •  Operating System  •  Optical Zoom  •  OTA (Over-The-Air)  •  OTG (On-The-Go)

P

PC Sync  •  Phonebook Access  •  Phone Life Cycle  •  Phonebook  •  PIN code (Personal Identification Number)  •  Pixel  •  Pixel Density  •  Price  •  Port  •  PTT (Push-To-Talk)  •  PUK (Personal Unlocking Key)

 

Q

Quad-band  •  QVGA (Quarter Video Graphics Array)  •  QWERTY keyboard

 

R

RAM (Random Access Memory)  •  Ringer ID  •  Ringtone  •  Roaming  •  ROM (Read-Only Memory)  •  RSS (Rich Site Summary)

 

S

Screen Protection  •  Screen Resolution  •  Screen Size  •  Screen Type  •  Screen-To-Body Ratio  •  Secondary Camera  •  Sensor  •  Side keys  •  SIM Card  •  SIM Lock  •  Single-Band  •  Smart Watch  •  Smartphone  •  SMS (Short Messaging Service)  •  soft keys  •  Soft Reset  •  Special Dial  •  Stand-by time (battery life)  •  Stereo Speakers  •  Streaming  •  Stylus  •  SVGA (Super Video Graphics Array)

 

T

Talk Time (battery life)  •  TCP/IP  •  Tethering  •  Text Messaging  •  TFD (Thin Film Diode)  •  TFT (Thin Film Transistor)  •  To-Do list  •  Touchscreen  •  Tri-Band .

 

U

UI (User Interface)  •  UMTS (Universal Mobile Telecommunications System)  •  Upload  •  USB

 

V

VGA (Video Graphics Array)  •  Video call  •  Video Codec  •  Video Resolution  •  Voice Dialing  •  Voice Mail  •  VPN (Virtual Private Network)

 

W

WAP (Wireless Application Protocol)  •  WatchOS  •  WCDMA (Wideband Code Division Multiple Access)  •  WearOS  •  Wearables  •  Weight  •  Wi-Fi  •  WLAN (Wireless Land Area Network)

 

X

Xender  •  Xenon flash

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