home *** CD-ROM | disk | FTP | other *** search
- Got a PCjr? The following will detail some up-grades you can use to
- increase the speed and versatility of your PCjr.
-
- NEC V/20: This is a direct replacement for the 8088 CPU in your Jr.
- It is usually available for less than $20 through the mail, and in
- major metro areas can generally be found at larger electronics parts
- houses. According to tests by PC magazine, you can expect a 10%
- increase in overall speed and a 25% increase in computational speed.
- In the PCjr, however, you will notice a couple of additional
- benefits. First, you will eliminate the dreaded keyboard beep.
- That's right, you can hold down that keyboard key without being
- annoyed by those stupid beeps, and the cursor won't overshoot the
- desired position while the machine runs stored keyboard impulses.
- Next, if you've had a tendency to fall asleep while running Flight
- Simulator, you're in for a pleasant surprise. Screens will come up
- nearly twice as fast as before, and other games will run somewhat
- faster also. The more dependent the program is on calculations to
- generate screens, the better the improvement will be. INSTALLATION:
- On the PCjr, the 8088 is located under the disk drive. Your Guide to
- Operations shows how to install the drive, and will answer most
- questions about how to remove it. The only thing I would add is that
- the plastic drive carrier snaps into the motherboard quite firmly,
- and requires quite a bit of force to unseat it, so be careful here.
- Make sure you locate the notch on the end of the chip on the same end
- as that on the 8088.
-
- MEMORY: More memory will allow you to run a wider variety of programs
- and much more will allow you to use ramdisks, which can emulate one
- or more additional disk drives. POWER: You don't always need to add
- an additional power supply to add a memory sidecar. I use a Quadram
- Quadmem jr, configured to a system total of 640K, and the IBM
- Parallel Printer Attachment in addition to the internal modem with no
- additional power.
-
- KEYBOARD: If, like me, you've needed to increase your usage of your
- jr because of business or other needs, you've probably come to
- dislike the keyboard after typing lengthy reports or run a long
- session on Lotus. Don't bother with the KB5149 numerical keypad, you
- still have to buy IBM's keyboard cable to use it. Look at the
- KB5150jr or KB5151jr. They're more money, but the KB5151jr makes
- using Lotus much easier and faster, and they include the cable.
-
- WHY BOTHER? While jrs are being heavily discounted, buying anything
- else with the same kind of options (color graphics, game ports, 13"
- RGB moniter, etc.) will generally cost much more. If you sell it
- you'll probably lose some more. It's up to you, but if you're
- wondering if the PCjr is capable of expanding into a business role,
- the answer is yes. If you use the cartridge version of Lotus 1A, you
- already run 10% faster than the PC. Just add a V/20 and you'll wait
- even less. If you add memory and use larger resident programs, the
- lack of a second drive will be almost unnoticable.
-
- Hope this is useful. I'd appreciate knowing any other tricks or
- ideas out there. The V/20 is the best thing going at less than $20,
- and I'd recommend it to anyone. Messages can be left for Roger Nye.
-