When I first started with computers, 4K of RAM had to be wheeled into the room on a furniture dolly and hard wired in to the computers. Which was the room. You had to load the bootstrap by hexadecimal coding into a push panel just to get the computer to “boot up” and begin to get ready to start computing. In on particular case, from power on to ready was about 4 hours or work.
Hard drives didn’t exist at the level I was working. So if you turned the computer off without writing your computed data to a 1/2 magnetic tape drive (reel to reel) it was gone for ever. No such thing as autosave.
By the time I was interested in personal computers (PCs) things had progressed substantially. Now that entire room with all 24K of random access memory could fit in a box about the size of a large modern microwave oven. We still didn’t have hard drives though “floppy disks” had shrunk in size to about 5.25 inches.
My first hard drive came in the mid 80s. It was a staggering 5 megabytes in size. It was external to the PC and had to be powered up and stabilized before you could turn on the PC. It used a motor to spin the platters that resembled a sewing machine motor and had a rubber belt from the motor to the platter spindle. It would dim the lights when first powered up and you could hear it spinning up.
Once it was up to speed, normally about 3 minutes after power on, a green light would come on and you could then turn on your PC to boot the machine.
Why all this narrative about days gone by?
When I walked into my office this morning and turned on my laptop, that has 16GB of ram, 512GB of ssd hard drive, 1TB of external hard drive and 4TB of network storage the bandwidth monitor caught my attention.
Just booting up the Mac Book Pro required 10MB +/- of data throughput. More than twice the amount of data space available on my first hard drive.
I don’t know what the purpose of this post is. But I felt like writing it.