Computer Tech Tutor

  • Best Books to Help You Pass the Comptia A+ 220-1001 and 220-1002 Exams
  • Best CompTIA A+ Online Video Courses
  • Comptia A Plus 220-1001 Study Guide and Exam Preparation
  • Comptia A Plus 220-1002 Study Guide
  • Comptia A+ (Plus) Acronyms
  • CompTIA A+ 220-1001 & 220-1002 Overview
  • CompTIA A+ Money Saving Tips
  • How to Study
  • Privacy Policy
  • Welcome
✕

SRAM

Uncategorized

Even though RAM is fast, it isn’t fast enough to keep up with the CPU.

SRAM stands for static random access memory. SRAM can retains its data without constant electrical power. SRAM is faster than regular RAM. SRAM is very expensive. A few megabytes of SRAM are place in the CPU.

SRAM acts as caches inside of the CPU. The SRAM cache preloads instructions in case the CPU needs to access them. This reduces wait states where the CPU is just waiting to receive information from RAM.

When the CPU looks for a line of code, it first looks to the cache. There are different levels of cache. L1 cache is usually on the CPU and is the first one the CPU tries to use. L1 is generally very small and runs at the multiplied speed of the CPU. The L2 cache feeds the L1 cache. The L2 cache is bigger than the L1 cache, and is the second place the CPU looks for information. The L2 cache runs at about half the speed of the L1 cache. Modern CPUs also contain an L3 cache. The L3 cache is the biggest (megabytes). The L3 cache runs at about the base speed of the motherboard, which is still faster than the normal RAM.

Author:

Previous Article

Electromagnetic Pulse (EMP)

Next Article

Acceptable Use Policy

Leave a Reply Cancel reply

Your email address will not be published. Required fields are marked *

8 + 1 =

Latest Posts

Storage Area Network (SAN)

APM and ACPI

Acceptable Use Policy

Recent Posts

  • Storage Area Network (SAN)
  • APM and ACPI
  • Acceptable Use Policy
  • SRAM
  • Electromagnetic Pulse (EMP)

Archives

  • August 2019
  • May 2019
  • April 2019
  • July 2002
  • June 2002
  • May 2002
  • April 2002
  • March 2002
  • February 2002
  • January 2002
  • December 2001
  • November 2001
  • October 2001
  • September 2001
  • August 2001
  • July 2001
  • June 2001
  • May 2001
  • April 2001
  • March 2001
  • February 2001
  • January 2001
  • December 2000
  • November 2000
  • October 2000
  • September 2000
  • August 2000
  • July 2000
  • June 2000
  • May 2000
  • April 2000
  • March 2000
  • February 2000
  • January 2000

Categories

  • 1. Mobile Devices (220-1001)
  • 1. Operating Systems (220-1002)
  • 2. Networking (220-1001)
  • 2. Security (220-1002)
  • 3. Hardware (220-1001)
  • 3. Software Troubleshooting (220-1002)
  • 4. Virtualization and Cloud Computing (220-1001)
  • 5. Hardware and Network Troubleshooting (220-1001)
  • Comptia A+ (Plus)
  • Comptia A+ (Plus) 220-1001
  • Comptia A+ (Plus) 220-1002
  • Uncategorized
Arba WordPress Theme by XstreamThemes.